Infinity Primus PS38

Powered subwoofer

Item #: 108PS38BK

In Stock

96 Reviews


Price Break:-$100.00

Your price: $199.99 Earn up to 200 Rewards points

Add to Cart

+ Add to wishlist + Email me alerts for this product

View all associated offers

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.

Product 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

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 Primus PS38 Reviews

Average Customer Review:

96 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card


Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Great sub

Written By Tony, Panama City, FL on Saturday, November 28, 2015

Crutchfield Customer Review (What's this?)

This sub sound great, it blend perfect and fill the room pleasantly, it was a great investment.

Pros: Great price and do an awesome job.

Cons: None

Infinity sub

Written By Steve, Summerville on Monday, November 23, 2015

Crutchfield Customer Review (What's this?)

Eactly what I needed to replace a 12' sub for a smaller room. Did not lose any sound for normal listening.

Infinity Primus PS38

Written By Anonymous, New York on Wednesday, November 11, 2015

Crutchfield Customer Review (What's this?)

I didn't think it was "punchy" enough for our living room so I switched it with the 100w SONY we bought years ago for our deck outside and the old SONY sounds terrific in the house! Will use the new "Infinity" outside come the springtime. Would have sent it back except it's too much of a hassle.

Pros: Good enough power, just lacks real punch; probably OK for the rumble u need for home theater but not good for music

Cons: not for music

Infinity Primus PS38

Written By Mk, Texas on Monday, November 09, 2015

Crutchfield Customer Review (What's this?)

Small but powerful. I bought two of them!

Pros: Compact, powerful

Cons: Power lights can be a bit distracting, but you get used to it. L

Infinity Primus PS38 Review

Written By P.S., Massachusetts on Sunday, November 08, 2015

Crutchfield Customer Review (What's this?)

Based on previous reviews and price point, I ordered this subwoofer to replace an 8 year old sub which had died. It is part of a 5.1 surround system. After a couple weeks of using it, I can say that it works great. Very satisfied with purchase.

Pros: Performance and price point.

Cons: None that I can think of.


Written By Marc A, Florida Keys on Sunday, September 27, 2015

Crutchfield Customer Review (What's this?)

Great sound, great price. Thanks, Crutchfield!

Pros: Replaced my old Infinity PS8 subwoofer with better sound at a better price, plus arrived in 3 days with free shipping. Unbeatable!

Cons: ?

Does the trick!

Written By Shawn B., Orange, VT on Monday, September 14, 2015

Crutchfield Customer Review (What's this?)

I bought this to supplement a set of Polk bookshelf speakers in my basement workshop and wow does this ever make a difference! The 150 watt amp is powerful enough to make the window vibrate (huge grin). Definitely a lot of sub for around 200 bucks!

Pros: Adjustable cross-over is very nice.Seems to be solidly built.

Cons: No speaker level inputs. Sub volume has to be adjusted separately from main amp.

Great product

Written By Red Mudd, Georgia on Monday, September 14, 2015

Crutchfield Customer Review (What's this?)

Great product for the money. Excellent customer service

Pros: Fabulous sound

Cons: Larger than I thought,

Solid Sub

Written By Mario G, Ohio on Thursday, September 10, 2015

Crutchfield Customer Review (What's this?)

Just picked up this sub to replace 12 inch sub that lasted me a little over 10 years. It works great in my space. Gave it a 4 out of 5 because it is replacing a 12 in, so its lacking the punch I used to have.

Pros: Affordable considering the price of home theater components

Infinity Primus PS38

Written By gary, oregon on Tuesday, September 01, 2015

Crutchfield Customer Review (What's this?)

Using this sub for xbox system. Good solid bass. Solid construction.

Pros: Great bass.

Cons: None

Primus PS38

Written By Joseph M., Pennsylvania on Monday, August 24, 2015

Crutchfield Customer Review (What's this?)

The sub-woofer sounds great but I just hooked it up. No problems with installation, etc. The staff at Crutchfield couldn't be more supportive.

Great Value

Written By RalphK, Virginia on Saturday, July 11, 2015

Crutchfield Customer Review (What's this?)

This is a surprisingly good subwoofer at a great price. I replace a larger, passive sub with this model and am enjoying the smaller footprint and great sound. The ratings helped me decide to get this sub and I'm pleased to say the high ratings are spot on.

Pros: Great lows, plenty of power, small footprint

Cons: Does not reach the lowest lows but this does not detract -- plenty of rumble/sound effects when expected.

Great Powered Subwoofer

Written By LorenR, Battle Creek, MI on Monday, June 29, 2015

Crutchfield Customer Review (What's this?)

This is a great powered subwoofer. I still have a set of Infinity speakers I use downstairs that I bought 37 years ago.

Pros: Great sound.

Cons: Can't think of any

Clean Bass

Written By Ken, Texas on Monday, June 08, 2015

Crutchfield Customer Review (What's this?)

Thank You to the folks at Crutchfield I wanted clean bass and that is exactly what I got ,clean tone If you want to rattle windows this unit will do that

Pros: This unit can be set to multiple tone levels ,which do you prefer ?

Cons: None so Far

lots of power in a little sub

Written By Anonymous, Jackson, MS on Monday, June 01, 2015

Crutchfield Customer Review (What's this?)

More than expected. Worth every penny!

Pros: Lots of deep bass. Good looking case.

Cons: Wish for an auto off timer.

A good value and sturdy build. Better than I thought

Written By hawaiigent, Oahu, Hawaii on Wednesday, May 27, 2015

Crutchfield Customer Review (What's this?)

Very pleased with this product. I have only a couple to compare it with such a small Yamaha that i had on test, I think the side 8" driver does a wonderful job. Clearly for my type of classical and showtunes music the powerful amplifier is perfect to add a range of sound that was missing even from my Bose Acoustimass bass model three way system. Crutchfield as always sent it here at no charge and it is a hefty 40 pounds. I have no intent to return it or go for something gutsier. It ia a fairly large box, but seems well put together and there is a heat sink in back. I really like the automatic power down feature with red and green LED. The base does not slide easily so I put on four glides to make it easier to reposition on my vinyl floor. The finish has a quality under stated appearance. I expected no great change in sound of my system but I am delighted with the moderate but positive improvement. I decided to buy a new RCA to RCA cable and a Y splitter which seems to be what the manual suggests. But will try it with the one output from my amp as well. My am is a Yamaha stereo of medium power, The AS 500. For my 14 by 14 room the system does a decent job. As to placement I find that it works well from a number of locations...good build, nice price, and fast no charge shipping. What is not to like I think....

Pros: Price and power output. Solid construction. Readable manual. Automatic power down with no sonic output detected. Nice rocker switch and heat shield in back such touches say quality...

Cons: None I can seriously is not small but not overwhelming in size. Rubber base tips make sliding hard . Get a push on slick tip set to slide it more easily on a floor.

Great addition to small bookshelves

Written By EricL, Texas on Sunday, May 24, 2015

Crutchfield Customer Review (What's this?)

The PS38 integrates seamlessly with my NHT super zeros and fills in most of the lower registers. A great addition.

Pros: Build quality. Sound. Great performance for the price and size.

Excellent bass

Written By Jon of TC, Traverse City, Michigan on Tuesday, May 05, 2015

Crutchfield Customer Review (What's this?)

I called the Crutchfield technical team and described the tradeoffs I was dealing with for a sub-woofer. We went through the tradeoffs and she suggested several alternatives. I chose the Infinity and have been quite pleased with it.

Pros: Excellent sound and the documentation nicely explained the various hookup options. Another sub-woofer that I have didn't bother explaining similar options and I had to figure them out independently.

Cons: Nothing really.

Solid Performer

Written By Butch, Brewton, AL on Tuesday, April 14, 2015

Crutchfield Customer Review (What's this?)

A good addition to my already decent audio system. Adds extra depth and presence to music and movies.

Natural sound

Written By Baltazar, California on Sunday, March 22, 2015

Crutchfield Customer Review (What's this?)

I upgraded a Sony sa-wm20 to this Infinity Primus PS38 to match the rest of my speakers (also Infinity Primus) and let me tell you, it made a really big difference. The Sony was good for the price, but just is no comparison to the PS38. The PS38 delivers a very natural sound, and does exactly what its supposed to, deliver great sounding bass. The PS38 really shines is making the surround sound be much closer to the theater movie experience. I like how it works really well with music, able to do very well with a variety of music from low organ tones, fast beating bass drums in metal, etc, all sounding very true to life. I got the PS38 instead of the larger Infinity Subwoofers since the others would just take up to much space being to the side of my TV. I can imagine that the bigger subwoofers would be even better, but this subwoofer sounds great, fits the room well, and saves me enough money to add a second one for 5.2 sound in the future. All in all, one of the best deals when it comes to subwoofers in its price range, and size.

Pros: Great sound, relatively small (narrow and tall), good price.

Cons: Not really a con, but if this one sounds this good, it makes one wonder what the bigger sub-woofers would sound like at not much more (if you can spare the space).


Written By Raymond B, Tamuning, GU on Wednesday, March 04, 2015

Crutchfield Customer Review (What's this?)

Delivers what it promised to deliver" all about the base"

Pros: Ease of set up

Cons: I don't see any

Incredible Quality

Written By Brian, Ardmore, OK on Sunday, March 01, 2015

Crutchfield Customer Review (What's this?)

Beautiful to look at as well as listen to. Added this to my Polk TSX floor standing speakers and it brought just the right amount of low to ultra low bass I was looking for. A perfect match for my system.

Pros: Superb fit/finish Auto off is great feature Easy to use controls

Cons: None


Written By 2stooges, Florida on Sunday, March 01, 2015

Crutchfield Customer Review (What's this?)

Great subwoofer for your system, installation is simple and sound is excellent. Would recommend. We are using with Denon AVR900 receiver and works great

Pros: Price

Cons: None

Perfect Replacement Subwoofer

Written By BostonMike21, Florida on Tuesday, February 24, 2015

Crutchfield Customer Review (What's this?)

This Subwoofer is perfect in every way. Priced right and works excellent. Super easy to hookup and small enough not to be sticking out and obvious. The sound is exactly what I needed in a replacement to the JBL that failed. Had in just in time for the start of NASCAR and what a sound when "Crank It Up" comes on. Definitely recommend.

Pros: Easy to setup and configure.

Cons: Nothing Yet.

Great subwoofer!

Written By Scott, Milford, De on Tuesday, February 03, 2015

Crutchfield Customer Review (What's this?)

This subwoofer is super easy to set up. It sounds absolutely amazing! It's great for music, movies, and games!

Pros: Easy setup. Sounds amazing! Auto off is great for saving electricity. Sounds great no matter what you use it for!

Cons: None.

Love Infinity

Written By Brent, Washington on Monday, February 02, 2015

Crutchfield Customer Review (What's this?)

Always liked Infinity speakers. Bought this to replace a 10+ year old Infinity Sub Woofer. Sounds as good as the old one did before it died. This was also a scratch and dent unit, but except for the beat up box, I couldn't find a scratch or a dent on it.


Written By Brian, New Jersey on Sunday, January 18, 2015

Crutchfield Customer Review (What's this?)

Better than higher priced subs I have owned

Great Woofer

Written By Columbus John, Columbus, OH on Tuesday, December 30, 2014

Crutchfield Customer Review (What's this?)

I had missed the great audio days of the 70's. Recently I purchased a Yamaha RX-V477. I wanted to get speakers that would compliment that unit. The Infinity Primus P363 tower speakers, P153 bookshelf speakers, PC251 center speaker, and PS38 woofer are great. My music sounds great. Watched a movie with the family and felt like I was in the theater. Great speakers.

Pros: Sound reproduction is very good. Enclosures allow the sound to be natural.

Great Bass

Written By Dayne, Hershey PA on Tuesday, December 16, 2014

Crutchfield Customer Review (What's this?)

Good bass. Had good luck with 30-year infinity speakers. First sub woofer I have owned so I have nothing to compare it to. I have owned it for 4 months and it operates well.

Pros: Good price after rebate Easy to set-up

Great speaker for the price

Written By Russ, Kapaa Hi on Tuesday, December 09, 2014

Crutchfield Customer Review (What's this?)

Love the price and the sound For an 8'' sub it's perfect I have a 20x20 living space and it rocks it.

Pros: Compact great for a small room.

Not the best,

Written By mbtv, Myrtle Beach, SC on Monday, December 01, 2014

Crutchfield Customer Review (What's this?)

no preamp sound, no variable from rca to digital sound

Fantastic sub!

Written By Derek, Hawaii on Sunday, November 23, 2014

Crutchfield Customer Review (What's this?)

Excellent sound

Great Little Sub!!

Written By Harold P, Georgia on Thursday, October 30, 2014

Crutchfield Customer Review (What's this?)

A great Sub for the price!! I added this one to a system with 1 Sub already; this was the perfect addition to my surround system.

Pros: 100 watt built in power Amp and the price.

Cons: None found yet.

Infinity Primus PS38

Written By Anonymous, mountain house on Sunday, October 19, 2014

Crutchfield Customer Review (What's this?)

Very filling bass for a medium sized box. Awesome!

Pros: Superb bass for its size.

Cons: None yet.

Infinity PS 38 Subwoofer

Written By Mike, Aiea, HI on Thursday, October 16, 2014

Crutchfield Customer Review (What's this?)

I have an audio system with 4 Mirage bookshelf speakers and a Yamaha receiver. I was looking for a subwoofer to help round out the bottom. I'm not interested in rattling the windows; I just wanted a sub to fill in the low end and take some of the load off the bookshelf speakers. The PS 38 does exactly what I want. My system sounds more natural and more alive.

Pros: Sound, ease of use, and excellent price.

Cons: None

Exceeds Expectations!

Written By Andrew S., Omaha, NE on Monday, August 18, 2014

Crutchfield Customer Review (What's this?)

I have installed this gem on a system in a basement that is utilized on channel A for surround sound, and channel B for music with floor standing speakers. In both cases, the subwoofer out performed what I had expected. Being in my late 20's, I still remember the bass I had in my SUV when I was 16 from a pair of 12's. This sub comes the closest to jogging those memories out of the three (3) I have most recently heard at a local box store. If you are searching for an occasional rumble during a movie, or rehashing the rumble of a 90's rap song, for the price, this won't let you down.

Pros: Cleanliness of bass at full range and power when needed.

Cons: Haven't found one yet!

Powerful for the price

Written By Wikid, Texas on Wednesday, July 02, 2014

Crutchfield Customer Review (What's this?)

I use these in a 5.2 setup and they sound amazing. They have more than enough bass so I have them dialed back a bit about 60% but its still enough to make it sound like a movie theater.

Pros: Powerful Integrated amp Can support receivers that do not have a sub out Adjustable power and frequency on the sub

Cons: Due to placement the LED on the back can be distracting but some tape fixed that.

Infinity Primus PS38 Subwoofer

Written By Tim, Springville, New York on Monday, June 09, 2014

Crutchfield Customer Review (What's this?)

Powerful little sub. I bought this for a second sound system I have in a 2nd music room ( to really get a way from it all) and have it paired with Infinity P153 Speakers. Hooked up to a Yamaha RS700 stereo receiver a cd and turntable. I could not be more happier with this sub. In this price range you'll never beat it. I hope if you are reading this review you have dealt with Crutchfield , they are the absolute best. I seriously don't shop anywhere else. This Sub was highly recommended by an advisor there.

Pros: Its small enough that you can place it anywhere but has a big sound

Cons: none

Honestly can't imagine anyone needing more

Written By Rick Norwood, Port Richey, FL on Monday, June 09, 2014

Crutchfield Customer Review (What's this?)

Your system is only as good as it's weakest link. This sub WILL NOT be the weak link in any setup unless you are trying to have concerts in a gymnasium, even then it might hold its own. Tight, clear, clean, and unbelievable bass. It is unfortunate that floor speaker technology can't keep up with powered sub tech, I wouldn't have to have these giant 25 yr old Polk's.

Pros: It can be whatever you want. Cover the low end that your main channel can't, or rattle dishes in your neighbors house.

Cons: I think it takes like 5 mins to shut itself off when not in use.

Great Sub!

Written By WCH, Tennessee on Wednesday, June 04, 2014

Crutchfield Customer Review (What's this?)

GREAT sound, no distortion!

Pros: Everything!

Cons: Nothing.

Infinity Primus PS38

Written By Anonymous, Ardmore,Ok on Tuesday, May 06, 2014

Crutchfield Customer Review (What's this?)

Great price for this piece of equipment

Pros: Great sound for the price

Super Sub

Written By Christopher M., Connecticut on Sunday, April 27, 2014

Crutchfield Customer Review (What's this?)

I bought the PS38 to pair with my Infinity P153 speakers. I have it connected into an Onkyo TX-8050 receiver. My room setup is 12'x14' and I placed the sub next to a dresser and a chair. This is the only room I have for it, so I couldn't tell you how it would sound elsewhere. The speakers are near it. The left is on the opposite side of the dresser, or about 5' away and the right is about 2' overhead (and over a few inches).

The bass compliments the overall sound of the system. It's a clean and sounds amazing. It's makes listening to music and movies so much better. It's not overpowering and doesn't drown out the other sounds. I've had the sub now for a few days. My crossover setting is 80 (which is the white dot at the "11 o'clock position") and my gain is 1/2 way or at the "12 o'clock position". I will probably readjust the settings after the break-in period.

I love this subwoofer and need to credit the folks at Crutchfield for the recommendation. I was researching a subwoofer and am so glad I went with this one. If you're looking for a "smaller" sub to go with your sound system, I would recommend this one. Also, one feature that I love is the subwoofer automatically turns off after a few minutes of no activity. Great feature.

If you're looking to add bass to a home theater in a living room or larger bedroom etc. then you might need to look at a larger subwoofer.

Pros:  Clean bass  Rounds out sound system  Adds more realistic sound in movies  Looks amazing  Auto turn-off if you're not using it.

Cons:  None to mention at the moment.

The Best

Written By irishwitch, Yonkers, NY on Wednesday, April 23, 2014

Crutchfield Customer Review (What's this?)

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!

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.

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

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


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

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

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.

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

Sweet sub!

Written By Eddie K., Sandown, NH on Monday, January 13, 2014

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.

UPDATED 1/27/15: This is my second review on this product. I've had the pleasure of listening to this sub for both music and tv on a daily basis, for just over a year now and it just performs flawlessly. I still can't believe how clean and how much this sub produces.

Pros: Plenty of tight, clean bass. UPDATED 1/27/15: Even after a year of daily use, still impresses.

Cons: None.

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

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.

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

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.

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

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

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.

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

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.

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.

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

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!

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..

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

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

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

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

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

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



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.

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

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.

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

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


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

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

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

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