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Crutchfield

Infinity Primus PS38

Powered subwoofer

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  • Infinity Primus PS38

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  • Infinity Primus PS38

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  • Infinity Primus PS38

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Our take on the Infinity Primus PS38

by Kristen Schaub
Infinity

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

Infinity's PS38 doesn't just play low and loud, it produces the kind of clear, accurate bass that makes movies and music seem more real. It's all thanks the combination of Metal Matrix Diaphragm® driver technology and a low-resonance enclosure. They ensure that this subwoofer — driven by the built-in 150 watt amplifier — can rock out without introducing any audible distortion. Your music will thrill with low-end punch and your movies will have that extra rumble that makes you feel like you're part of the action.

Infinity's exclusive Metal Matrix Diaphragm driver
The Primus PS38 features Infinity's exclusive Metal Matrix Diaphragm ("MMD" for short) driver technology in the 8" front-firing woofer. It consists of a stiff aluminum core, anodized on both sides for increased strength and rigidity. The result is extremely fast, extremely accurate response, giving you distinctly cleaner, more realistic bass, even at higher volume levels.

Build a complete Primus® system
The Infinity Primus PS38 will fill most rooms with dramatic and well-defined bass. Connect it to your receiver using either the LFE or line-level inputs. Easily accessible controls on the back of the sub help you blend it in with the rest of your system. The Primus PS38 is voice-matched with the entire Primus home theater speaker lineup, so you can create a high-quality sound system that meets your needs.

Highlights:

  • Metal Matrix Diaphragm® driver minimize distortion
  • 8" front-firing MMD driver
  • bass-reflex (ported) cabinet design
  • 150-watt RMS amp
  • frequency response 35-150 Hz (±3dB)
  • continuously variable 50-150 Hz crossover
  • phase switch
  • auto on/off
  • line-level stereo and LFE inputs
  • black woodgrain vinyl finish
  • 10-5/8"W x 17-3/4"H x 16-3/8"D
  • weight: 31.7 lbs.
  • warranty: 5 years speaker, 2 years amplifier
  • Our 60-day money-back guarantee
 

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure
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Bass Reflex
Video Shielded
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No
Woofer Size (inches)
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8
Woofer Composition
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M.M.C.
Firing Direction
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Front
Preamp-Level Inputs
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Yes
Speaker-Level Inputs
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No
Speaker-Level Outputs
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No
Low-Pass Crossover Freq
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50-150Hz
High-Pass Crossover Freq
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N/A
Phase Switch
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Yes
Amplifier Output (watts)
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150
Frequency Response
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35-150 Hz
Height (inches)
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17-3/4
Width (inches)
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10-5/8
Depth (inches)
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16-3/8
Weight
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31.7 lbs
Speaker Parts Warranty
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5 Years
Speaker Labor Warranty
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5 Years
Amplifier Parts Warranty
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2 Years
Amplifier Labor Warranty
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2 Years
Product Research
What's in the box?

Download owner's manual

  • Black powered subwoofer (with attached 69" AC power cord)
  • Black cloth grille (installed)
  • Owner's Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features
Controls
Connections

Features

Metal Matrix Diaphragm (M.M.D.): Derived from the C.M.M.D. material used in Infinity's flagship Cascade series, M.M.D. features a stiff aluminum core, anodized on both sides for increased strength and rigidity. M.M.D. transducers conduct sound faster than paper, polypropylene, and Kevlar, pushing unwanted resonances beyond the operating range of the transducer. M.M.D. drivers deliver crystal-clear, distortion-free sound from dynamic digital sources, even at high listening levels. The PS38 is equipped with a front-firing, 8" M.M.D. woofer.

Amplifier: This subwoofer is powered by a 150-watt (RMS) amplifier, rated at 35Hz - 150Hz with no more than 0.1% THD. The maximum (peak) power output is 300 watts.

Surround: For a smoother response and improved durability, the woofer uses a rubber surround.

Bass Ports: There are two rear-firing bass ports that allow deep bass with high acoustic efficiency and low distortion.

Controls

Gain Control: The subwoofer has a rotary control on the rear panel for adjusting the level of the bass.

Low-Pass Crossover: The subwoofer features a continuously variable 50Hz-150Hz low-pass crossover that determines the highest frequency at which the subwoofer reproduces sounds. The crossover has a 24dB/octave slope.

Note: The crossover is bypassed when the "LFE" input is used.

Phase Switch: The subwoofer's phase switch allows you to control the phase of the subwoofer's output relative to the front speakers. If the bass sounds muddy or unclear, toggling the phase control can sometimes strengthen the bass "attack."

Auto On/Off Circuit: The auto on/off circuit turns the power amp on when a signal is sensed and turns the amplifier off and into standby mode approximately 10 minutes after a signal is no longer received. An LED indicator on the rear panel glows green when the amplifier is on and red when the amp is in standby.

Connections

Line-level Inputs: The subwoofer has a gold-plated LFE input (single RCA) and gold-plated stereo RCA inputs. If you have a Dolby Digital/DTS receiver or processor with a low-frequency-effects (LFE) output, you should use the LFE input on the subwoofer. If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output, you must use the stereo RCA inputs. If the receiver/processor has a mono subwoofer output, a "Y" adapter is recommended to maximize performance.

 
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Infinity Primus PS38 Reviews

Average Customer Review:

54 people say:

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5 out of 5

The Best

Written By irishwitch, Yonkers, NY on Wednesday, April 23, 2014
 
Sounds great with my existing receiver. Crutchfield techs and customer service reps are the best! Item was on sale when I purchased and I got the best price out there!
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5 out of 5

Beyond happy with the Infinity Primus PS38

Written By Greg..., Virginia on Saturday, April 19, 2014
Crutchfield Customer Review (What's this?)
 
Love this unit. Added everything and more to my pair of bookshelf speakers. Found the perfect blend almost immediately by reading the easy to understand instruction manual. Highly recommend.

PS: and only to me, don't skimp by buying or using cheap cables. Your system will only sound as good as your weakest cable. Enjoy enjoy the sound your system has to offer. Just my opinionated 2 cents to help you enjoy your speaker/speakers. Crutchfield's website offers up some good tips on speaker placement too.
Pros:
Great price, great sound.
Cons:
Sub woofers am guessing by nature can be rather large compared to bookshelf speakers, or to me. Just check the dimensions before you order on to insure you have a place for it.
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5 out of 5

Nice woofer

Written By Rob, Ny on Saturday, February 22, 2014
Crutchfield Customer Review (What's this?)
 
This is the first sub that I've bought. Just getting into the home surround scene after redoing my den. Wow...what a difference. Music sounds great. You can make the whole house move if you want. Movies are awesome, you can really feel the all the action. Xbox sounds really cool (when the wife's not home) sounds like a war zone! Just buy it you won't be disappointed , unless it's broken, then yes disappointment will follow.
Pros:
Sounds awesome. Doesn't take up a lot of space.
Cons:
None it's sweet
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5 out of 5

Great Bass

Written By Gary, Chillicothe, Ohio on Saturday, February 01, 2014
Crutchfield Customer Review (What's this?)
 
I received the powered subwoofer within three days. The sound is clear and clean at all levels. I was very pleased with the additional base this product delivered. If I turn the volume on high, my windows rattle. So to keep peace in the neighborhood, I keep the volume down. The control knobs are with in easy reach as well as the on off switch. I would recommend this product.
Pros:
great bass sound, easy set up
Cons:
none
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5 out of 5

Infinity_Primus-PS38

Written By Chris, Illinois on Tuesday, January 28, 2014
Crutchfield Customer Review (What's this?)
 
This sub-woofer is just what needed to be added to my surround system. It has added a whole new dimension to watching movies.
Pros:
Deep bass, you have the ability to adjust the gain.
Cons:
None that I have found
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5 out of 5

Primus PS38

Written By Chance, Jamestown, ND. on Friday, January 24, 2014
Crutchfield Customer Review (What's this?)
 
This is a pretty nice sub. Very easy to control the sound you want. It has 2 knobs high up on the back so they are easy to reach. Doesn't take a lot of room and looks pretty good.
Pros:
Easy to control. Good sound.
Cons:
None
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4 out of 5

After one month, pleased with PS38

Written By pb, SW FLorida on Sunday, January 19, 2014
Crutchfield Customer Review (What's this?)
 
Received in 3 days of order, plugged it in and was very pleased. The sub has clean, clear base you can feel but is not overpowering. Only listen to music (no surround set up) and the room is filled with sound like never before. Our large listening room and open floor plan may have paired better with a larger sub but for the price the PS38 is performing well. Bought to match with Infinity P163 bookshelf speakers. Overall pleased with both products. The P163s were very good without the sub but now they sound great. Should have bought this sub sooner.
Pros:
Great base for the size and price and would recommend it.
Cons:
Have to adjust the sub volume/gain for different discs and sources (between 45-65%). Would rather set it and forget it and this is why I only gave 4 stars.
1 out of 1 people found this helpful
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5 out of 5

Sub woofer

Written By Ed K, Frisco tx on Thursday, January 16, 2014
Crutchfield Customer Review (What's this?)
 
I got this on sale from Crutchfield. It arrived promptly. I plugged it in an immediately was pleased by the base it added to my home theatre. I recommend it for anyone needing a sub woofer
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5 out of 5

Sweet sub!

Written By Eddie K., Sandown, NH on Monday, January 13, 2014
Crutchfield Customer Review (What's this?)
 
I bought this sub for a bedroom system and decided to try it out in my 24x24 family room with my large DCM loudspeakers and wow, was i surprised! I can't believe how much bass this sub produces for an 8 inch speaker. Highly recommend.
Pros:
Plenty of tight, clean bass.
Cons:
None.
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5 out of 5

Infinity Primus PS38

Written By Mike, Jefferson City, MO on Friday, January 10, 2014
Crutchfield Customer Review (What's this?)
 
Great low end bass for the price. Really accents my home theater system.
Pros:
Easy to hook up.
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Infinity Primus PS38

Written By Max, Danville, CA on Monday, December 30, 2013
Crutchfield Customer Review (What's this?)
 
Very nice system and good complement to Marantz SR5008.
Pros:
Nice sound.
Cons:
None so far.
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5 out of 5

infinity ps 38

Written By jeff, billsvile on Thursday, December 26, 2013
 
purchased on sale and have never owned a sub before and it's phat!! wow pretty nice sound ,no hum or muffled sound, not too big and not too tiny goes good with my Denon AVR-200
Pros:
all pro
Cons:
no cons
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5 out of 5

Very Solid Sub

Written By Anonymous, North Carolina on Sunday, December 22, 2013
Crutchfield Customer Review (What's this?)
 
I added this sub to a larger than average living room with 10 ft ceilings. I have the room wired for surround sound, but am a music enthusiast at heart and really only interested in music listening for now. So at this point I just have 2 front speakers also in the mix (Episode) At first listen I was unsure that this sub was going to compliment the front speakers and the room. But after spending some time using the Audyssey function on my receiver - and then further manually tweaking the cross-over point by listening to bass heavy music (ultimately settling on 150 Hz )- the system got really dialed in and now sounds DYNAMITE. This sub is the perfect compliment to the range of the fronts. The room sounds extremely detailed and crisp and it's a joy to listen in (especially jazz). This sub has power to spare. Currently it's running at around 40% output. I'm confident that it will work well for Movie LFE applications. This sub is a great value.
1 out of 1 people found this helpful
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5 out of 5

super bass

Written By dboyd, Lafayette La on Friday, December 06, 2013
Crutchfield Customer Review (What's this?)
 
while watching Mission impossible ghost protocol. thought something blew up in house when the van they were in was hit with the explosion and went into river. VERY REAL
Pros:
super strong
Cons:
none
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5 out of 5

Infinity Primus PS38

Written By JohnM, San Diego, CA on Monday, October 14, 2013
Crutchfield Customer Review (What's this?)
 
I'm currently running all my audio (turntable, TV, CD player, BluRay) through a Yamaha RX-V567 amp connected to Bose 301 speakers in front and Bose 201 speakers in the rear. In addition I have an Infinity Primus 351 center speaker. The room is approximately 30' wide by 18' deep. This sub fills the space beautifully. Just great, clear bottom for the system and room. Only question is, when is a remote-controlled sub going to come around? I like to change the sub's effects depending on what I'm watching on TV or listening to and tuning it manually isn't that big a hassle, but a remote? Awesome...
Pros:
Super clear, dynamic bass
Cons:
Haven't found one and probably won't
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5 out of 5

Primus PS38

Written By Billy, Lighthouse Pt., FL on Saturday, October 12, 2013
Crutchfield Customer Review (What's this?)
 
For what I wanted this is the perfect fit. Way more quality than the sound bar/sub sytem that came with my TV, more adjustability and a simple hookup with one cable to my new Sony AV receiver. Very easy install, no more sub "popping" from the old one and I can vibrate the house if I want to. Likely I'll never turn the gain over half or so because with my wood floors and stucco walls the base can overwhelm the rest of the sound. I have a pair of older Bose 302's for "front" speakers and small bookshelfs wired together and plugged into receiver as a "center" channel. It's not ideal, but it's economical and as much sound as I need in my house. I think this sub could really power a nice home theater surround for all systems but the highest dollar or most discerning audiophile. Can't go wrong, especially if you score it on sale like I did.
Pros:
Price, quality, sound, ease of install/hookup
Cons:
None so far.
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5 out of 5

Great Subwoofer

Written By GailM, Richmond, VA on Tuesday, August 27, 2013
Crutchfield Customer Review (What's this?)
 
The Infinity Primus PS38 is a welcomed addition to my home theater system. It makes everything sound better.
Pros:
Excellent sound.
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Infinity Primus PS38

Written By Ken, Chippewa Lake, OH on Friday, July 19, 2013
Crutchfield Customer Review (What's this?)
 
I love this sub... it makes my Boston HD10's sound better than ever!
Pros:
Excellent Controls... Easy set-up.. Sounds Great... Looks Great.. Super Price.
Cons:
None.
1 out of 1 people found this helpful
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5 out of 5

I didnt believe

Written By tae, kansas on Thursday, May 09, 2013
Crutchfield Customer Review (What's this?)
 
I really didn't believe how much difference a subwoofer would make to a surround system. Now I do. If you are looking for a sub to fill out your system, then get one. If not this one, which is awesome by the way, then another, but get one. Spend some time setting it up. Placement and sound levels are important. I run this one at about half and cant believe the difference in the sound in the room.
Pros:
Looks nice. Easy to set up. Sounds great.
1 out of 2 people found this helpful
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5 out of 5

Infinity Primus PS38

Written By PhilG, Custer, SD on Sunday, April 28, 2013
Crutchfield Customer Review (What's this?)
 
I bought this to supplement my home theater system. It works fantastic. I was thinking about going with the next size up, but found out this totally exceeded my expectations. Well worth the cost.
Pros:
Cost was reasonable
2 out of 2 people found this helpful
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5 out of 5

Nice little sub

Written By AdamG, Pittsburgh, PA on Friday, April 26, 2013
Crutchfield Customer Review (What's this?)
 
This is a nice little sub that was the right price. Picked it up on sale for $199. Used in a 2.1 system with a Denon AVR-1913 HT Receiver and a pair of Infinity Primus P163 bookshelf speakers. Used primarily to compliment TV and movie viewing, the sub fills the room without shaking the walls. Was a great buy at $199.
Pros:
Price - free delivery - ease of set-up
Cons:
nothing!
1 out of 1 people found this helpful
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5 out of 5

Exceeded my expectations.

Written By Kinney, Cayey, Puerto Rico on Monday, April 15, 2013
Crutchfield Customer Review (What's this?)
 
Needed a powered sub woofer and this one exceeded our expectations! I have a Bose speaker with a Yamaha Power. The powered sub exceeded my expectation. Thanks Crutchfield.
Pros:
Great price and the best Free Shipping to Puerto Rico...
Cons:
None..
1 out of 1 people found this helpful
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5 out of 5

Very pleased

Written By MikeA, Texas Panhandle on Wednesday, April 10, 2013
Crutchfield Customer Review (What's this?)
 
Needed a powered sub and this one fit my needs. Very pleased with the sound. Turned it slightly past half to cover all volume ranges.
Pros:
Nice sub for the price (was on sale for 100 bucks off).
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Excellent sound

Written By DennisR, Parkersburg,WV on Wednesday, April 03, 2013
Crutchfield Customer Review (What's this?)
 
Excellent sound at a very good price. Added so much to my system. Very satisfied with purchase
Pros:
Price Ease of set up
Cons:
none
1 out of 1 people found this helpful
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5 out of 5

Primus sub

Written By JB, RI on Saturday, March 09, 2013
Crutchfield Customer Review (What's this?)
 
Good sub , pairs nicely with my P-162's in a small , 12 by 20 room . They were good on their own but the sub adds a real depth to the music . Also use with a low end sound bar that needs to be upgraded . My next review will be my new soundbar and sub package . Never need to run at more than half volume , could easily overpower the listening stage in my set up .
Pros:
Good product , nice design , great value for the money
Cons:
Points out the flaws in my system that I knew I had
1 out of 1 people found this helpful
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5 out of 5

Very nice

Written By Danny B, Stockton ca on Tuesday, February 26, 2013
Crutchfield Customer Review (What's this?)
 
This Sub is very impressive. The price was great too. I replaced a much higher end sub with this Infinity PS38 and I must say I like this one better. You do need to turn the volume up on the sub when the receiver is at normal listening level but once you turn the receiver up you can reduce the sub volume to about 50 % and its perfect. For those of you wondering if it works well in a room with high ceilings, it does! My room is 20x18x22 and it sounds great.
Pros:
Cost, and sound
Cons:
none
1 out of 1 people found this helpful
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5 out of 5

Infinity Primus PS38

Written By Anonymous, Northport, AL on Saturday, February 16, 2013
Crutchfield Customer Review (What's this?)
 
Exceeded our expectations! We are very pleased!
Pros:
Prompt delivery
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5 out of 5

Steve C

Written By Steve C, Sacramento Ca. on Thursday, February 07, 2013
Crutchfield Customer Review (What's this?)
 
Nice power subwoofer, nice sharp crisp punchy base I recomend this speaker
Pros:
GOOD SPEAKER FOR THE PRICE BIG BASE FOR THE SIZE
Cons:
NONE AS OF YET
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5 out of 5

Great subwoofer !!!

Written By Donald H. Trausch, Allons, TN on Saturday, February 02, 2013
Crutchfield Customer Review (What's this?)
 
Great subwoofer and the price was right. Dylan suggested that I purchased this subwoofer to replace the one I had that went "belly up". He also suggested that I buy the open box subwoofer as the price was a little cheaper. Well he was right and right. Kudos to Dylan from guiding me in the right direction and I couldn't be more pleased. Just what the doctor ordered. Bass is right at about 50% volume; I could crank it up, but what's the point. Will continue to due business with Crutchfield in the future.
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5 out of 5

Good stuff

Written By audiodude, RockyMountains on Thursday, January 31, 2013
Crutchfield Customer Review (What's this?)
 
I didn't know you could get such a great sub at such a low price.. Subs have come a long way....I learn something new every day. The end.
Pros:
Deep rich thunder
Cons:
Nada
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4 out of 5

Primus sub

Written By ksm, Abingdon on Monday, January 28, 2013
Crutchfield Customer Review (What's this?)
 
Delivers good bass, but must turn up to nearly 75% to get it to an appropriate volume. I have to say it performs significantly better than the Polk sub priced nearly the same. That sub was so poor I returned it. I have an 8" Definitive sub that is MUCH more powerful and clearer than this sub, but it did cost twice as much. For the price, I feel the Infinity it is a good buy. I use it just to fill in the gap missing from a pair of small bookshelf speakers when working out, but gave an older one to my parents for their home theater and it works well.
1 out of 1 people found this helpful
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5 out of 5

Bad to the bone

Written By FW Ute, Fort Wayne, IN on Wednesday, January 23, 2013
Crutchfield Customer Review (What's this?)
 
Don't be fooled by the diminutive size, this sub packs an amazing punch. It easily fills my theater room with amazing bass. Great sub.
Pros:
Awesome bass, awesome price
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Love it

Written By Chris, Troy, OH on Friday, January 18, 2013
Crutchfield Customer Review (What's this?)
 
I was amazed how good this sub sounds for its price. This was a Christmas present for my son and he loves it. The adjustability of the gain and cross over points makes it adaptable to any system.
Pros:
Price, looks, performance
Cons:
None
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5 out of 5

PRIMUS PS38

Written By VICTOR K, Lake Worth,FL on Wednesday, January 02, 2013
Crutchfield Customer Review (What's this?)
 
Can't be beat for the money..
Pros:
Easy set up and sounds great with complete primus system
Cons:
None
5 out of 5 people found this helpful
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5 out of 5

Outstanding Sub for the money!

Written By Bill O, Chagrin Falls, OH on Tuesday, January 01, 2013
Crutchfield Customer Review (What's this?)
 
I own 4 powered subs-the newest which the PS 38. The one to which I compare the performance of all of them is my 16 year old Cambridge Soundworks PSW-1, a 12 inch acoustic suspension powerhouse which is twice as big and cost 3x as much as the PS 38. I must say the PS 38 holds its own very well to the larger one with clear and deep bass in a 20 x 20 foot cathedral ceiling home theater room. I didn't think the PS 38 wouldn't even come close to the CSW PSW-1, but, amazingly, it does. I used the Audyssey feature on my ONKYO receiver which I also bought from Crutchfield to reset my satellite speakers with the PS 38. I was skeptical at first but Nick was right, the PS 38 is an amazing little subwoofer for the money, especially if you can get it on sale as I did. Eventually, I'll probably bring back my CSW PSW-1 into the room which I use with a SUPERCUBE III, (I think the PS 38 is as good or better), but for right now, I am still mightily impressed with the performance of the INFINITY PS 38 on all program material including CD's, DVD's, and HDTV. I can't imagine a better subwoofer for the money. Hopefully, it will also last for 16 years.
Pros:
CLEAR and DEEP bass, excellent construction, size, flexible controls
Cons:
NONE
3 out of 3 people found this helpful
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5 out of 5

Very Nice Sub

Written By Tony D, Milwaukee, WI on Monday, December 31, 2012
Crutchfield Customer Review (What's this?)
 
Very nice sub for the money. It really puts out plenty of bass for most people. I have to keep it around 60% power to keep the wife from complaining! In a 2000 sq ft house you can hear the bass clearly from the first floor through to the second. Not really a con, but it's a little larger than expected.
Pros:
Price, Value, Bass Output
2 out of 2 people found this helpful
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5 out of 5

Very nice sup

Written By Couch tater, Pgh, pa on Sunday, December 23, 2012
Crutchfield Customer Review (What's this?)
 
Bought scratch n dent didn't work it was replaced quickly. Best Customer service I have had!!!
Pros:
Good sub , not overwhelming has both LFE and line in with crossover control
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Primus ps38

Written By Steve, Pine Beach, NJ on Friday, December 14, 2012
Crutchfield Customer Review (What's this?)
 
Perfection booming bass !!!
Pros:
Lots of power
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5 out of 5

Precisely the subwoofer I was imagining

Written By pmarc, Staunton, VA on Monday, December 10, 2012
Crutchfield Customer Review (What's this?)
 
Web resources at hand, I read through my choices, the pricing, other reviews. I went with the Infinity Primus PS38 powered sub-woofer to supplement my heirloom hi-fi system (yes, bought back when stereo systems were referred to as Hi-Fidelity and there were dogs, references to 'his master's voice' and Gramophones lurking on LP labels). So, the woofer is powered from an auxiliary output on the old Yamaha CA-810 amplifier which is nested comfortably in a sea of cables, connections and switches so that I can accommodate my new BluRay disc player and a modern LED flat screen video screen (my amp back panel is fully filled). The fidelity specs for the woofer are absolutely fine for my (boomer) hearing range and for blowing out any unfortunately too nearby candles... This low end driver supplements my old sets of Tandberg Fasett (hexagonal, soccer-ball-sized) speakers which, at 4-ohms are wired in (paired) series and arranged as higher bookshelf L & R speakers... no 5.1, not yet. For my ears, the sound is amazing, subtle (I keep the SW volume toward the low end) and gives me exactly what the little Tandbergs cannot come up with. Highly, highly recommended and the Crutchfield techs are fantastic in getting you going on your way; many thanks there.
Pros:
Compact, easy to situate, wonderful bass supplement
Cons:
...you only need one
1 out of 1 people found this helpful
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5 out of 5

Great sub for the money!

Written By KMeyer, ABQ, NM on Tuesday, November 06, 2012
Crutchfield Customer Review (What's this?)
 
Great sub for the money! Only had it for a couple weeks now but love it so far.
Pros:
Good value. Great sound.
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5 out of 5

Lots of Boom for your Buck

Written By Rose, Oxford, PA on Saturday, October 20, 2012
Crutchfield Customer Review (What's this?)
 
I bought this gift for my husband to replace the Mirage subwoofer that came with our Denon Home Theater System. Because we already had the configuration setup it was unpack, plug in and enjoy. This subwoofer has a great throaty bass without being overpowering. I would highly recommend it. The Crutchfield crew got this to me in less than 24 hours. Thanks a lot guys!
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5 out of 5

Infinity Primus PS38

Written By HappyGuy, Marksville,LA on Thursday, October 18, 2012
Crutchfield Customer Review (What's this?)
 
Subwoofer turned out to be better than was thought . Set it up right out of box , tuned it in and "WOW" !!! Can't go wrong with this product .
Pros:
Awesome shape and size , plenty of bass for what you need , easy to set up .
Cons:
None yet have to get back after I use it for some time .
2 out of 2 people found this helpful
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5 out of 5

Blends in Perfectly

Written By DaveB., Lafayette, CO. on Sunday, September 16, 2012
Crutchfield Customer Review (What's this?)
 
Wonderful subwoofer, especially for the money. After some initial tweaking and a good suggestion from Crutchfield's tech.s, regarding my new Denon, which they really didn't have to do as I didn't purchase it there, which actually showed class on their part, my new subwoofer is everything I hoped for. I don't have to do much by way of crossover as my receiver does it for me, however, I did experiment with the volume and about halfway seems best. Placement is important as is phase and now my bass appears to be coming from every speaker as it should be. Both movies and music are equally enjoyable. Prior to becoming injured I was privileged to play bass guitar and although my equipment was vastly different it did give me an appreciation for good sound.
Pros:
Sounds great without being overpowering and has just enough adjustment capability. Couldn't currently ask for better subwoofer for me.
Cons:
None. The weight issue appears to be related to the fairly massive heatsink that is there to fix the problem Infinity had with an earlier subwoofer.
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5 out of 5

Best value for money of any sub on the market

Written By jdrch, Peoria, IL on Monday, August 27, 2012
Crutchfield Customer Review (What's this?)
 
I got the PS38 to replace my PS28, which died after 4 years of use. At first I was hesitant to go with Infinity again, but after shopping around I couldn't find any other subwoofer with the same frequency response, power or a warranty period that covered both the speaker and electronics for at least 4 years. Therefore, I went with the PS38. It seems Infinity took the hot rod approach to the PS38: rather than resort to tricks to reduce its size, they simply dropped the biggest speaker into the biggest enclosure for the price point and called it a day. Of course, that results in a large, heavy device that's difficult to hide, but it's an acceptable tradeoff unless you have a very finicky spouse. Fortunately, it looks good and professional. Your visitors *will* be impressed by the sound though. No one who has heard either of my PS* units has come away without commenting favorably on it. Like the PS28 before it, you'll go deaf or get evicted due to noise violations before you hit the PS38's performance limit when its used in an apartment living room. For music, the PS38 can easily fuel a block party, but that's a double edged sword as it can easily overwhelm dialogue and cause excessive late night noise when watching movies (but then again, no one buys subs for how quiet they are). If you want a capable sub on a budget, you can't go wrong with the PS38.
Pros:
- Big sound - Good, non-gimmicky design - Impresses visitors (even those who "don't care" about home theater) - Relatively low price - Effectively limitless performance in smaller spaces
Cons:
- Large size makes it difficult to conceal, though it will fit under some end tables - Heavy - Can be excessively loud at night (but that's really your neighbors' problem)
3 out of 5 people found this helpful
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5 out of 5

Infinity PS38

Written By Mark, Minnesota on Tuesday, August 14, 2012
Crutchfield Customer Review (What's this?)
 
Great sub for my room (especially for the price), it really fills the room with deep rich bass. The PS38 is a great addition to my surround sound system (Paradigm speakers and Harmon/Kardon receiver.) In addition to the sub Crutchfield's customer service is excellent. I had originally purchased a PS28 but there was defect in it. I was able to talk to a person almost immediately to get my problem solved and Crutchfield sent out a replacement the next day. I can not recommend them high enough.
Pros:
Great sound for the money, excellent customer service
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Superb Power in a Small Package

Written By The Hawk, Longwood, FL on Sunday, August 12, 2012
Crutchfield Customer Review (What's this?)
 
The PS38 is a terrific sub-woofer for the price, especially now that it is on sale for $199.99. It is a great addition to my Infinity Primus home theater speakers and there are many adjustments that can be made on the PS38 to hone in on the exact listening parameters set by the listener.
Pros:
Excellent sound reproduction; many adjustment possibilities; size, design, excellent quality output value to price ratio.
Cons:
It is quite heavy compared to my old Onkyo sub-woofer.
1 out of 1 people found this helpful
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5 out of 5

Great Sub !!!!!

Written By PK, Burleson Tx on Tuesday, July 03, 2012
Crutchfield Customer Review (What's this?)
 
Researched subwoofers from Klipsch, PolkAudio and Energy before deciding on this Infinity. 150 watts continous rms is plenty for me. Plus it matches my floors and center from infinity. It sounds great, plenty of bass, not a window rattler, but you can definitely feel the bass. I am very happy with the quality and price.
Pros:
Matches my system, plenty of bass, in my price range.
Cons:
none.
3 out of 3 people found this helpful
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5 out of 5

Great Sub

Written By Eduard, Cidra, PR on Wednesday, June 27, 2012
Crutchfield Customer Review (What's this?)
 
This sub definitively does the job. After owning a polk 110 I was not happy with the sound and then a polk 111 wich died within 2 weeks, I returned both of them. I get the ps38 and boy what a difference. Great sound and quality product for the price. 100% recommended.
4 out of 4 people found this helpful
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4 out of 5

Excellent

Written By Bob, Boston on Tuesday, March 06, 2012
Crutchfield Customer Review (What's this?)
 
Hefty subwoofer -- adds richness to the two Infinity Primus P162, which themselves have pretty good range. Note that the subwoofer requires RCA audio plug cables NOT the banana plugs the Primus speakers use. And if your receiver has a dedicated single plug subwoofer output then you only need a single wire cable, not the two wire cable.
Cons:
None that I experienced.
6 out of 6 people found this helpful
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5 out of 5

Just Right

Written By TheCurrent, Bolingbrook, IL on Friday, February 10, 2012
Crutchfield Customer Review (What's this?)
 
Contacted Randy who was instrumental in helping me replace an expired item. This sub-woofer rocks for just the right price and is just what I needed. The house rumbles and makes you feel like you're there! Can't ask for anything more. Thanks so much!!!!
Pros:
Love the power on/off technology. Works & sounds GREAT!!!
Cons:
None
6 out of 6 people found this helpful
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5 out of 5

Good Price

Written By Bob, Baltimore, MD on Thursday, February 09, 2012
Crutchfield Customer Review (What's this?)
 
Picked up this beauty from Crutchfield while it was on sale. Great addition to my B&W's - really added the depth I was missing.
2 out of 2 people found this helpful
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5 out of 5

Great Sub

Written By Rick T, Valley Stream NY on Monday, February 06, 2012
Crutchfield Customer Review (What's this?)
 
Perfect size for my little room,and still has lots of boom
Pros:
Size is small but sound is big
Cons:
None for me
3 out of 3 people found this helpful
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5 out of 5

Rocks the house

Written By Anonymous, Georgia on Monday, January 30, 2012
Crutchfield Customer Review (What's this?)
 
This sub will rock your room, love it. Looks nice also.
4 out of 4 people found this helpful
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5 out of 5

Solid sound

Written By RyanD, Johnstown, PA on Saturday, December 03, 2011
Crutchfield Customer Review (What's this?)
 
This subwoofer provides solid bass when needed. No matter whether you are watching a movie, sports, or simply listening to music, the quality sound that this produces enhances the experience.

The compact design allows the subwoofer to fit nicely within your room's configuration.

I would definitely recommend this addition to any home theater.
Pros:
Small and more compact than many subwoofers, yet provides solid bass that provides an awesome addition to your music/movie experience.
16 out of 19 people found this helpful
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1 question already asked

Does this come with a cable to hook up to the deck ? [ Robert  Dec 29, 2013 ]
9 answers
  • No. Nothing comes with it. [ DAVID A   Dec 30, 2013 ]
  • No, you will need to purchase a sub woofer cable for this unit. [ JAY   Dec 30, 2013 ]
  • No, it doesn't. [ JOHNNY   Dec 30, 2013 ]
  • I can't remember for sure but I think there was no cable provided [ DAVID B   Dec 30, 2013 ]
  • Cable not included. [ DAVID   Dec 30, 2013 ]
  • No cable. But good value for the money. Very musical sub. [ NICHOLAS W   Dec 30, 2013 ]
  • You will need to supply a decent subwoofer cable with good shielding, the shorter the better. [ MIKE W   Dec 30, 2013 ]
  • No cable is included most electronic stores carry the proper cable if your receiver has Dolby digital you need the lfe cable otherwise you must use rca's [ DAVID J   Dec 30, 2013 ]
  • no [ GARY   Dec 30, 2013 ]

Add accessories for the Infinity Primus PS38

Use a high-quality subwoofer cable for bass that draws you into your movies and music. A cable is not included with this sub. See all categories & accessories

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For a more in-depth review and enhanced detailed information on the Infinity Primus PS38, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_108PS38BK/Infinity-Primus-PS38.html ).

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