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PSB SubSeries 250 Powered subwoofer

Item # 760SS250

There are a few speaker companies that I make a beeline towards when they come to our headquarters to...

There are a few speaker companies that I make a beeline towards when they come to our headquarters to...

Item # 760SS250

In stock

About the PSB SubSeries 250

Kramer Crane

High-quality bass from true speaker experts

There are a few speaker companies that I make a beeline towards when they come to our headquarters to demo new products. PSB is one, because I know how much time and energy they spend refining each speaker they make. The SubSeries 250 looks to be yet another fine example of PSB's dedication to outstanding sound.

High-quality bass from true speaker experts

There are a few speaker companies that I make a beeline towards when they come to our headquarters to demo new products. PSB is one, because I know how much time and energy they spend refining each speaker they make. The SubSeries 250 looks to be yet another fine example of PSB's dedication to outstanding sound.

Great for music and for movies 

In my book, a great subwoofer needs to be able to make the floor quake during dinosaur chases and superhero battle scenes, but also accurately reproduce nuanced low frequencies from bass guitars, kick drums, and cellos. The SubSeries 250 uses a 10" front-firing woofer and 200-watt RMS amplifier to do both with authority. The icing on the cake? This sub's design was overseen by PSB founder Paul Barton himself to ensure the best performance possible.

Superb fit and finish 

The SubSeries 250 doesn't just sound good — it has an upscale look and feel to it as well. It sports a high-gloss black finish that really shines. And I like how the corners of the enclosure are rounded. For those of us with pets and little kids, this is always a plus. 

At just over 1 cubic foot in volume, the SubSeries 250 is ideal for small- to medium-sized rooms.

Put a stop to shaking, rattling, and rolling

Quick story: my living room has glass bookshelf and fireplace doors, along with tall windows that line three of its walls. All of these used to rattle like crazy when bass hit during movies. It drove me nuts!

One day I decided that I'd had enough. I bought an isolation platform to decouple my sub from the floor. Voila! Just like magic, the rattling and vibrations instantly disappeared. I even had to dial the sub back because the bass was suddenly stronger. It is without a doubt the best money I've ever spent on my system.


Product highlights:

  • 10" front-firing polypropylene woofer
  • 200-watt RMS Class D MOSFET amplifier (300 watts peak power)
  • frequency response: 25-150 Hz (±3dB)
  • acoustic suspension (sealed) enclosure
  • variable low-pass crossover (50-350 Hz)
  • phase switch to help blend the subwoofer to your main speakers and room
  • gold-plated RCA line-level and LFE (low frequency effects) inputs and outputs
  • speaker-level inputs and outputs
  • USB power port (5 volts, 500mA) for optional wireless adapter
  • auto power on/off
  • vibration-absorbing feet
  • detachable 8-foot power cord
  • durable MDF cabinet with high-gloss finish
  • removable grille
  • 13-5/8"W x 13-5/8"H x 13-5/8"D
  • weight: 42 lbs.
  • warranty: 5 years subwoofer, 1 year amplifier
  • MFR # Subseries 250

What's in the box:

  • Powered subwoofer
  • Grille
  • 6' AC power cord
  • Quick Start Guide
  • Important Safety Instructions
  • Warranty Information

Customer reviews for PSB SubSeries 250

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4.5 out of 5 stars
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More details on the PSB SubSeries 250

Stacey B.

Features & specs

Enclosure Sealed
Woofer Size (inches) 10
Woofer Composition Polypropylene
Firing Direction Front
Amplifier Output (watts) 200
Frequency Response 25-150 Hz
Preamp-Level Inputs LFE, Stereo RCA
Speaker-Level Inputs Binding post
Speaker-Level Outputs Binding post
Wireless Optional
Low-Pass Crossover Freq 50-150 Hz
High-Pass Crossover Freq 80 Hz
Phase Switch Yes
App Control No
Remote No
Other Info
Height (inches) 14-1/4
Width (inches) 13-11/16
Depth (inches) 15-5/8
Weight 42 lbs
Speaker Parts Warranty 5 Years
Speaker Labor Warranty 5 Years
Amplifier Parts Warranty 1 Year
Amplifier Labor Warranty 1 Year

Product Research


PSB SubSeries: The PSB SubSeries 250 powered subwoofer is designed to provide the flattest possible frequency response, full bass extension, low distortion, and high output. The PSB SubSeries powered subwoofer is perfect for music and movie soundtracks.

Class D Discrete MOSFET Amp: The PSB SubSeries 250 powered subwoofer employs a custom-designed Class D discrete MOSFET amplifier rated at 200W RMS/300W Peak. The built-in digital amplifier features an automatic varying switching frequency that maintains maximum efficiency and low THD under all conditions. The Class D amplifier also incorporates proprietary limiting circuitry preventing audible overload while remaining true to the dynamics of your music or movie sound track. This circuitry combines peak limiting circuits that hold amplifier signal swing to the point just short of the amplifier's clipping, with compression circuitry that will reduce the amplifier's gain.

10" Woofer: To compliment the powerful Class D amplifier, the SubSeries 250 uses a front-firing 10" polypropylene cone woofer with rubber surround, high-temperature voice coil and vented pole piece. The woofer is designed to reduce mechanical noise and prevent harsh sounds at extreme excursion.

Sealed MDF Cabinet: The PSB SubSeries 250 features an acoustic suspension (sealed) MDF cabinet that is ultra-rigid and acoustically inert. It also comes with an acoustically transparent detachable grille. In addition, four vibration absorbing feet isolate the cabinet from your floor. As a result, the SubSeries 250 delivers tight, accurate bass that is uncolored without distortion. The cabinet is finished in a high-gloss black.

Rear-Mounted Controls: Three rotary control knobs (Bass Level, Crossover, Phase) are provided on the rear-panel of the powered sub for setup.

  • Bass Level: The rotary Bass Level knob controls the output level of the powered subwoofer, relative to the volume of the other speakers in the system.
  • Crossover: The low-pass crossover adjusts the high-frequency roll-off of signals sent to the subwoofer. The control is continuously variable from 50 Hz to 150 Hz, and allows you to precisely match the subwoofer's bass production with your system's main left & right stereo speakers.
  • Phase: The phase dial allows for the adjustment of the phase of the subwoofer in relation to the speakers used in the system; from 0 to 180 degrees.

Low-Level & High-Level Connectivity: The PSB SubSeries 250 powered subwoofer offers multiple connection options - including LFE, Stereo RCA, and Speaker-Level inputs and outputs. Gold-plated terminals are used for the powered sub's inputs and outputs, providing excellent signal transfer.

  • LFE Input/Output: An LFE input is provided for connecting the powered subwoofer to your AV receiver's LFE output. Since the LFE output is filtered by most receivers/processors, the subwoofer's variable low-pass filter is not required and is bypassed. The powered subwoofer also has an LFE output for daisy-chaining additional subwoofers.
  • Stereo RCA Input/Output: If your receiver or integrated amplifier has preamp outputs, or if you are using a preamplifier without a designated subwoofer/LFE output, the preferred connection is to use the stereo RCA input of the powered subwoofer. In this setup, the subwoofer's internal crossover will used. The sub also has as stereo RCA low-level output, useful if your amp has pre-out/main-in jacks, or when using a separate preamp and amplifier. The low-level output is internally processed by the sub's active high-pass crossover at 80Hz.
  • Speaker-Level Input/Output: A set of speaker-level inputs are provided for connecting the powered sub to your receiver's left & right front speaker outputs, while a set of speaker-level outputs are provide to connect your front left & right loudspeakers to the powered sub. These 5-way binding-post terminals will accept bare wire (up to 10AWB), spade lugs, pin connectors, and banana plugs (single or dual). The powered subwoofer's low-pass crossover (50-150Hz) will send all low frequencies to the powered sub, while midrange and high frequencies are sent to your connected loudspeakers.

Optional Wireless Link: Two Bluesound RT100 wireless adapters (sold separately) can be used to wirelessly transmit audio from your AV receiver's LFE or subwoofer output to the PSB SubSeries 250's LFE/RCA input. The SubSeries 250 features a USB port that supplies power to the RT100. If your AV receiver is not equipped with a rear-panel USB port, you will also need a USB/AC adapter (sold separately) to power the RT100 at the AV receiver.

Auto On/Off: The powered subwoofer features a main power switch on the back panel. When switched to On, the subwoofer is initially in stand-by mode, awaiting the presence of an audio signal. When the signal is received, the subwoofer turns on automatically. When no signal is detected, the sub's amp will automatically turn off after approximately 15 minutes. In the Off position, the subwoofer will not power up. You can also setup the powered subwoofer to manually turn on and off with the main power switch.

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