Polk Audio PSW10 Review: A Budget 10-Inch Sub That Fits Old and New Amps

The Polk Audio PSW10 is a budget 10-inch powered subwoofer, and its best trick is compatibility: it takes both RCA line-level and spring-clip speaker-level inputs, so it works with a modern AV receiver and with an old stereo amp that has no subwoofer jack at all. Polk still sells it new.

Buy it for a first 2.1 or 5.1 system in a small or medium room. Skip it if you want deep movie rumble in a large space; Polk rates its −3 dB range at 40–160 Hz, which is shallower than most 10-inch rivals on paper.

ArmorSound did not test the PSW10. This research review draws on Polk’s product page and owner’s manual, the spec sheets of rival subs, and setup guidance from Audioholics and Sound & Vision.

Where to buy

Our verdict

Polk Audio PSW10

Best for: Budget stereo and first home theaters

Driver

10-inch front-firing, flared port

Amplifier

100W peak, Class D

Rated range

40–160 Hz (−3 dB)

Inputs

RCA L/R, speaker-level in/out

Weight

26 lb

• Speaker-level inputs suit amps with no sub out
• Variable low-pass control and phase switch
• Front-facing port can sit near a wall
• 5-year driver and 3-year amp warranty

• Shallower 40 Hz rating than most 10-inch rivals
• No LFE jack, app or room correction
• Too deep at 16 inches to fit under most desks

Watch for: With speaker-level hookup there is no high-pass filter, so your main speakers still play full range alongside the sub.

Check price on Amazon →

What are the Polk Audio PSW10 key specs?

Polk’s current product page lists only a 100W peak rating, with no RMS figure, and does not publish the low-pass range. A previous version of this page gave the cabinet as 17 inches deep, 14.25 wide and 14.5 tall, and called the port “Power Port” technology. Polk lists 16.125 x 14 x 14.375 inches and a flared front port.

What does the Polk Audio PSW10 connect to?

This is where the PSW10 earns its place. Polk’s manual describes three hookups:

• Receiver with a Sub Out. The PSW10 has no LFE input. Run one RCA cable from the receiver’s sub output into either the L or R line input (or use a Y-splitter into both), then turn the Low Pass knob fully clockwise. Polk says this “in effect” creates an LFE input and leaves the crossover to the receiver.
• Receiver or preamp with left and right pre-outs. Connect both pre-outs to the L and R line inputs with RCA cables.
• Amplifier with speaker terminals only. Wire the amp’s front left and right speaker outputs to the PSW10’s speaker-level inputs, then wire your front speakers from the sub’s speaker-level outputs. Polk says not to use the line inputs in this setup.

One catch with that last option: Polk’s specs list no high-pass filter for the pass-through terminals. Expect your main speakers to keep playing full range, with the sub adding bass below its low-pass setting.

Powered speakers with a sub or line output also work through the RCA inputs. That covers the mono sub outs on Klipsch The Fives and the Onkyo GX-10DB, and the stereo variable output on the Audioengine HD6.

It will not pair with soundbars built around their own wireless subs. Sonos says the Sub 4 needs a compatible Sonos product, and Bose lists the Bass Module 700 for its own soundbars only. Our Sonos Sub 4 review and Bose Bass Module 700 review cover those systems. Only a soundbar with a wired sub output can feed the PSW10.

How do you set the PSW10 crossover, phase and level?

Polk’s manual and Audioholics agree on the basics.

1. Receiver crossover. Set your speakers to Small. Polk recommends 80 Hz for tower and bookshelf speakers with woofers of 5.25 inches or larger, and 100–120 Hz for satellites. Audioholics calls 80 Hz the easiest starting point for beginners.
2. Low Pass knob. Fully clockwise when the receiver handles the crossover. With speaker-level hookups or powered speakers that play full range, use it to set the hand-off: higher for small speakers, lower for big ones. Polk suggests listening to male vocals; turn the knob up if they sound thin and down if they sound chesty.
3. Volume. Polk suggests starting at 50% and adjusting by ear for bass without boom.
4. Phase. From your seat, play music with a walking bass line and keep whichever setting sounds fuller at the crossover point. Sometimes you will hear no difference.

Leave the power switch on “auto.” Polk’s manual says the sub wakes when it senses a signal and switches off after 15 minutes without one, and advises plugging it into a wall outlet, not a receiver’s switched outlet.

How deep does the Polk Audio PSW10 bass go?

The PSW10 is rated −3 dB at 40 Hz. For comparison, Klipsch rates its 10-inch R-100SW at 32–120 Hz ±3 dB with a 150W continuous amp, and its smaller 8-inch R-8SW at 38–120 Hz. On paper, the PSW10 trades depth for price and connection flexibility.

We found no recent lab measurement of the PSW10 from a major publication. Polk’s product page quotes CNET praising its deep-bass ability and its “definition and control.” Treat that as a marketing quote from an older review, not as measured performance.

The practical reading: the PSW10 fills in what bookshelf speakers cannot reach in a bedroom, den or apartment living room. It will not shake a large open-plan room during action movies.

Where should you put the Polk Audio PSW10?

Polk recommends placing the sub on the same side of the room as your front speakers, standing upright on its feet. A wall or corner raises its output, and Polk says to avoid putting it next to an open door.

For the smoothest bass at your seat, use the “subwoofer crawl” Sound & Vision describes:

1. Put the sub on your main seat, raised toward ear height.
2. Play a slow bass sweep or a bass-heavy track.
3. Move around the front of the room with your ears where the sub’s driver will sit, and note the spot where bass sounds most even.
4. Move the sub there.

Both the driver and the port face forward, so the PSW10 does not need a gap behind it the way rear-ported subs do. It is a floor sub, though. At 16 inches deep and 26 pounds it is a poor fit under most desks; for a desktop system, look at the Audioengine S8 or the Klipsch R-8SW instead.

What do Polk Audio PSW10 owners report?

Spec sheets and lab reviews only go so far. Here is what owners say after living with it, drawn from their own posts on Reddit.

• More power than expected. An owner says the PSW10 has more power than they expected: they keep it around 15% for occasional tremors, and half volume would shake their walls. (r/hometheater)
• Survives family life. An owner who paid $99 in 2017 says it is still going in a living room shared with two kids under five. (r/BudgetAudiophile)
• Easily outclassed by newer budget subs. That same owner added an RSL Speedwoofer 10e to their office and found it tighter and much more capable than their other subs. (r/BudgetAudiophile)

Owners treat the PSW10 as a durable entry-level sub that beats no sub at all. Movie fans who want depth tend to upgrade.

Who should buy the Polk Audio PSW10, and who should skip it?

Buy the PSW10 if:

• Your stereo amp or vintage receiver has no subwoofer output.
• You are building a first 2.1 or 5.1 receiver system on a tight budget.
• Your room is small to medium and you mainly want fuller music and TV.
• Your powered speakers have a sub out and you want a 10-inch floor sub.

Skip it if:

• You want deep bass for a large or open-plan home theater.
• Your system is a Sonos or Bose soundbar with its own sub ecosystem.
• You want app control, room correction or wireless placement.
• You need a sub that fits under a desk.

What are the alternatives to the Polk Audio PSW10?

Klipsch R-100SW. More amplifier and a deeper rating for a receiver-based home theater, but it has no speaker-level inputs. Pick it over the PSW10 if your receiver has a Sub Out. See our Klipsch R-100SW review.

Klipsch R-8SW. A smaller 15-pound sub rated to 38 Hz and 108 dB, for bedrooms and tight corners. It also needs a line-level or LFE source. See our Klipsch R-8SW review.

Audioengine S8. An 11.25-inch cube with RCA and 3.5mm inputs, aimed at powered speakers and desks. It suits an Audioengine or Klipsch The Fives system better than a receiver. See our Audioengine S8 review.

Polk Monitor XT10. Polk’s own step-up 10-inch sub, which Polk rates down to 24 Hz. Consider it if you like the Polk approach but want more depth than the PSW10’s rating suggests. For other bass picks, see the Philips X5206 party speaker or the compact wireless Sonos Sub Mini.

Frequently asked questions

Sources

• Polk Audio: PSW10 product page and specs
• Polk Audio: PSW10/PSW12 owner’s manual (PDF)
• Klipsch: R-100SW spec sheet (PDF)
• Klipsch: R-8SW spec sheet (PDF)
• Audioengine: S8 tech specs
• Audioholics: AV receiver bass management basics
• Sound & Vision: Subwoofer setup in 3 steps
• Sonos: Sub 4 product page
• Bose: Bass Module 700 product page and compatibility