Skip Navigation

PSB SubSeries 100

Ultra-compact powered subwoofer for desktop systems and more

11 Reviews | 2 questions - 3 answers

Add to Cart

PSB SubSeries 100

Overview

Our take on the PSB SubSeries 100

Shhhh, please don't tell the SubSeries 100 powered subwoofer just how tiny it is...it thinks it's big. And when you hear it, you'll think it's big, too. That's because PSB packed an amazing amount of muscle into this ultra-compact cube. Match it with PSB's Alpha PS1 powered speakers to create a pint-sized sound system that delivers serious, big-dog sound.

Little dog with big dog attitude

Shhhh, please don't tell the SubSeries 100 powered subwoofer just how tiny it is...it thinks it's big. And when you hear it, you'll think it's big, too. That's because PSB packed an amazing amount of muscle into this ultra-compact cube. Match it with PSB's Alpha PS1 powered speakers to create a pint-sized sound system that delivers serious, big-dog sound.

Bring your music, movies, and video games to life

PSB designed the SubSeries 100 to bring powerful bass performance to your desktop listening environment. This mighty mite even packs enough punch to fill smaller rooms. Its carefully engineered and computer-optimized 5-1/4" woofer is paired with an efficient, cool-running 50-watt Class D amplifier for tight, accurate low-frequency sound. You'll feel the rumble of explosions in your favorite Hollywood blockbusters and hear the crowds roar when you score a goal in your favorite game. It's great for music, too, like when you want to really hear the taut, tuneful sound of an upright acoustic bass from a classic jazz number.

Full-size controls and flexibility

The SubSeries 100 might be small, but it still gives you all the versatility of a full-sized subwoofer. You get an adjustable volume control, plus controls for setting the crossover frequency and inverting phase to ensure a perfect sonic match with your main speakers and your room. Rear-panel line level inputs accept both stereo preamp outputs and the mono subwoofer input from an A/V receiver or PSB's own Alpha PS1 powered speakers. The sub even comes equipped with a USB power port to charge and operate your compatible USB devices.

Perfect addition to an office audio system. I had the PS1s for about a year w/out a sub, which is an enjoyable system, but the sub really makes the whole package shine.

bp0009, Charleston, SC

What's in the Box:

  • Compact powered subwoofer
  • Two 5.75' AC power cords (US/EU) Quick Start Subwoofer Guide
  • Important Safety Instructions

Product Highlights:

  • acoustic suspension (sealed) enclosure
  • 50-watt RMS amplifier
  • 5-1/4" front-firing polypropylene woofer
  • frequency response: 39-150 Hz (±3dB)
  • continuously variable 50-150 Hz crossover
  • phase switch
  • line-level stereo RCA inputs
  • unfiltered LFE (Low Frequency Effects) mode for connection to a home theater receiver's subwoofer output
  • auto on/off
  • USB power port for charging compatible USB devices
  • 6-3/8"W x 6-3/8"H x 7-7/8"D
  • warranty: 5 years woofer, 1 year electronics
  • Our 60-day money-back guarantee
Reviews

PSB SubSeries 100 Reviews

Average Customer Review:

11 Reviews

PSB SubSeries 100

Written by: BigG from Asheville, NC on July 20, 2016

Crutchfield Customer Review (What's this?)

Good addition to my new PSB Imagine minis for a wall unit mounted home theater system, but I was a somewhat disappointed with the lack of bass response. I did not notice much difference, even after adjusting the speaker levels. Very subtle difference.

Pros: Small, compact, good quality, matches my mini speakers

Cons: Not much "umph"

Perfect compliment to PSB's Alpha PS1s

Written by: bp0009 from Charleston, SC on January 30, 2016

Crutchfield Customer Review (What's this?)

Perfect addition to an office audio system. I had the PS1s for about a year w/out a sub, which is an enjoyable system, but the sub really makes the whole package shine.

Pros: - Perfect small size which was really important for me - Fit and finish is typical PSB high quality - Sound is deep and not boomy. I imagine this is due to the sealed box design

Cons: - Obviously this will not go down to the lowest frequencies. So if you're expecting that, this product isn't for you.

PSB SubSeries 100

Written by: BL from Massachusetts on June 8, 2015

Crutchfield Customer Review (What's this?)

application was for a 14 X 32 pool house combined with a Sony STR-DH750 home theater receiver and 2 pair of Cambridge Audio Minx Min 11 speakers. The requirement was the most sound from the smallest speaker. The sub series 100 met the home owners expectation. Form other reviews it sounds like the typical application is as a PC sub. This application is with a home theater receiver and is certainly up to the task. It provides an adequate and, for lack of a better adjective "subtlety nice" bass response, especially with the Minx Min 11's. The bass will not overwhelm you the way a larger sub will, but it is not underwhelming either. If space is at a premium and you do not need to rattle the rafter's with bass, this sub will get the job done.

Pros: size and sound, and, neither a pro and certainly not a "con" for my tastes, but will not rattle the rafters with bass.

Cons: none

Waste of Money

Written by: OT from Michigan on April 1, 2015

I think giving one star to this junk is a lot, I got it from Crutchfield and in a day i realized that this is absolute junk and anyone who feels different I want to know what they liked about this useless piece of box with a grill in front and who knows what's inside it as I can assure you it's not a sub, PSB do good job with speakers but I don't know what were they thinking when they built this i don't know what to name it, ok so it does nothing for you I would highly recommend buying something else.

Pros: Very small in size could have been a good toy for my 2 year old kid.

Cons: so many of them I can't put it in words, you are better of running just speakers then getting this and for goodness sake don't call it a sub

Just the right size

Written by: Ima B from Houston, TX on March 17, 2015

Crutchfield Customer Review (What's this?)

I am using these with some AudioEngine A2+ speakers on my desktop at work - the A2+ speakers are great sounding speakers, but lacking in bass. The PSB SubSeries 100 fills out the bass just perfectly even at the usual low volumes I play them at (out of respect for my co-workers). That being said, this sub ROCKS when turned up. I didn't use the stands as I have the A2+'s on a shelf above my monitors and the sub on top of my laptop docking station centered between the speakers. I am somewhat of an audiophile/phool and really like quality sound, which this set-up delivers. I considered the AudioEngine S8 subwoofer, but thought the 8" sub would be too much compared to the 5-1/4" woofer in the PSB SubSeries 100 that I thought was a better match to the 2-3/4 mid-woofers in the A2+s. Plus, the S8 was another $100! Like another reviwer, I had to up the volume to about 3/4 to get them to blend right. I also set the crossover at ~120 Hz as that is the lower end of the bass as tested by Stereophile (in contrast to the published 65 Hz frequency respeonse).

Pros: Perfect SMALL size and GREAT sound.

Cons: A bit pricy and wished it matched my A2+'s better (i.e., the PSB SubSeries 100 is available only in gloss black and the A2+'s are matte black).

PSB `00 subwoofr

Written by: Bob H from Lake Monticello, VA on July 10, 2014

Crutchfield Customer Review (What's this?)

I bought the PSB Alpha 1 speakers plus the audioquest USB attachment first. I should have bought the entire package at once, it is that good. Computer sound cards are not the best so adding the audioquest improved the sound. The Bose speakers were boomy so I replace them with the PSB 1s, but something was still missing. Good sound requires a base on which it can rest, and that base is a good low bass. While we may not pay much attention to the bass we notice it when it is missing. The entire system needed bass, so I added the PSB 100 subwoofer to the system and noticed an immediate improvement. Everything I played, whether off Youtube or through Netflix or the itunes on the computer sounded fuller, lusher and smoother. I cannot recommend the entire system too highly since it makes everything come alive. It is almost, but not quite, as good as the sound from a good 5.1 or 7.1 surround sound system. If you are tired of the speakers on your computer I suggest you buty the PSBs. You won't be sorry.

Pros: Works seamlessly throughout the spectrum of sound

Cons: Can't find a thing to complain about

PSB Sub 100

Written by: Fred A from Silver Spring, MD on June 17, 2014

Crutchfield Customer Review (What's this?)

Blends seamlessly with the matching PSB Alpha S1 speakers. Does not call attention to itself as some subs do. Just rounds out the low end. Very nice!

Pros: Blends seamlessly with the Alpha. You can tweak it with dials if you want.

Cons: None

Small and punchy

Written by: Ob47 from Kaneohe,Hi on April 19, 2014

Crutchfield Customer Review (What's this?)

For my use I give it a 5 star rating. I'm using it with audioengines A2+ Connected to my Mac Mini usb port. I have the crossover set on the sub at about 80hz. I had the unit on my desktop but the sound is better on the lower shelf of my cart. The build quility is solid and the finish is excellant. The performance for its size is amazing and adds a very solid foundation to the A2+. Play Bella Flecks Flight of the Cosmic Hippo and you'll understand the capability and sound quality of this sub. The only quirk that I notice is that I have to set the sub level at almost 3/4 volume. I don't know if this is due to the audioengines speaker outputs or the subs input resistance. Whatever the case, they are a perfect match. Instead of firing up my main home stereo system, I can sit and enjoy music at my computer desk sometimes for hours. BTW, the setup sound great for movies too.

Pros: Price, build quality and finish, compactness and most of all output and sound quality.

Cons: None for what it is.

Perfect addition

Written by: MarkB from CNY on April 15, 2014

Crutchfield Customer Review (What's this?)

Bought this to compliment my PSB Alpha PS1 desktop speakers & could not be happier. It really fills in the sound, giving a rich complete sound stage. I can sit & listen for hours it's that good. This setup isn't going to fill a large room, but for a home office or desktop, it's gonna be hard to beat for sound quality. It's made me a PSB fan.

Pros: Sound; full, rich & warm. Amazing for it's size

Cons: A bit pricey

subwoofer PSB

Written by: Anonymous from Chicago IL on January 24, 2014

Crutchfield Customer Review (What's this?)

this is a wonderful product. has great sound.

Pros:

Cons:

The PSB 100 is a keeper.

Written by: emailkenny from Benson, NC on January 22, 2014

Crutchfield Customer Review (What's this?)

Been up all night auditioning the PSB 100. So far, it's great. For now, I'm using it in a desktop PC and Audio-engine A2 configuration. I say, for now, because I'm going to replace the Audio-engine A2's as soon as I can, as they've become somewhat dated. Again, the PSB 100 is a definite keeper.

Pros: Solid sound and build quality. Compact design.

Cons: Piano black finish. Wish it came in a matte walnut or cherry finish.

Details

Hands-on research

What's in the box?

Download the PSB SubSeries 100 manual

  • Compact powered subwoofer
  • Two 5.75' AC power cords (US/EU) Quick Start Subwoofer Guide
  • Important Safety Instructions

Features and Specs

Enclosure Acoustic Suspension
Video Shielded No
Woofer Size (inches) 5 1/4
Woofer Composition Polypropylene
Firing Direction Front
Wireless No
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Low-Pass Crossover Freq 50-150
High-Pass Crossover Freq None
Phase Switch Yes
Amplifier Output (watts) 50
Frequency Response 39-150 Hz
Height (inches) 6-3/8
Width (inches) 6-5/16
Depth (inches) 8-11/16
Weight 6.05 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 Years
Amplifier Parts Warranty 1 Year
Amplifier Labor Warranty 1 Year

Product Research

Features

5.25" Woofer/50W Amp: A specially designed 5.25" long-throw polypropylene woofer is computer optimized to get the best bass extension and dynamic range without distortion. An innovative filter pole shifting technique is used to squeeze the maximum deep bass from the specially engineered driver unit. The acoustic suspension enclosure is extremely rugged and resonance-free assuring that only the desired bass frequencies are radiated into the room for clean articulate bass response. The efficient and cool running 50W (continuous) Class D amplifier is capable of 100W dynamic peak power and carefully matched to the driver. By matching the amplifier to the driver characteristics a synergy is achieved that boosts the level of performance far beyond what could be achieved otherwise.

Volume/Crossover/Phase Control: Along with adjustable volume, there are controls for setting the crossover frequency (50-150Hz) and inverting the phase (0°/180°) to facilitate a perfect and seamless integration between the full-range or satellite speakers you have partnered with the SubSeries 100 powered sub.

Note: Recommended settings for the SubSeries 100 when matched with the PSB Alpha PS1 Powered Speaker (760ALPHPS1, sold separately) are as follows - 0° phase, crossover half-way, and half volume (marked on sub). This combination creates an incredible micro-sized full range desktop system for your computer audio.

RCA/LFE Input: Line-level RCA inputs accept both stereo preamp outputs and the mono LFE channel input from an AV Receiver. Use the powered sub's Left RCA input for an LFE signal.

Auto On/Standby: When an audio signal is received by the SubSeries 100, the powered subwoofer turns on automatically. When no audio signal is detected, the sub's amplifier will automatically turn off after approximately 15 minutes.

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 verify what’s in the box, 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.

Accessories
Q & A

Customer Q&A

2 questions already asked

The position of the sub isn't all that critical. I am using it with my home receiver and it provides plenty of bass for music and movies. It sits about 10 feet from the viewing area and there is still plenty of bass. I think under your desk will be just fine, it may need a little tweaking though to find the sweet spot. [ JOSHUA  Mar 13, 2014 ]
I have mine under a desk and it sounds great [ JONATHAN  Mar 11, 2014 ]
As far as making music, depends on your application. I'm using the PSB sub along with the PSB Alpha B1s, driven by a Meridian Explorer DAC directly from a PC. The Meridian Explorer is a fantastic DAC, plugs directly into one of my PC's USB ports, then connects to the PSB Alpha B1s via a 3.5mm to RCA interconnect (I'm using the AudioQuest Sydney interconnect). the Alpha B1s are powered speakers and sound fantastic in their own right. After I had them in place for a couple of weeks, I decided to add the PSB 100 sub. The sub itself is just great in this application, and filled out the bottom end very nicely. Understand this is a computer desktop system, and in that application the sound is very hard to beat. I've got a very high-end, dedicated two-channel system that this little desktop system rivals in terms of its musicality. I love listening to it while I work.The PSB Subseries 100 is a standard, powered sub that you feed signal to using a standard subwoofer interconnect. It is not USB powered nor can you use it in a USB application. The PSB Alpha B1s have a subwoofer out port that sends signal to the sub. So, in this application both the Alphas and the 100 sub are separately powered (standard 120V electrical connection).If you are thinking of using this sub in a dedicated two-channel set-up that's used for anything other than a desktop or very small room application, I don't think it will be a good solution, due to its diminutive size. But in my 10x13 study at home, this system works great and is amazingly musical. I think a lot of that is due to the quality of the Meridian DAC but the Sub 100 and the Alpha B1s work great together and are real winners as well.Hope this helps. [ STEVEN  Feb 01, 2014 ]
Library

Looking for more? Check out the next model in this lineup.

PSB Subseries 125

Enjoy even deeper, more powerful bass

The PSB SubSeries 125 offers these features:

an 8" woofer for a lower frequency response down to 35 Hz

built-in 125-watt amplifier for greater bass volume in larger spaces

convenient front-mounted volume and crossover controls