SUBSERIES 250
PSB SubSeries 250 Subwoofer
SUBSERIES 250
PSB Speakers, Subwoofers, Subwoofers
Audiophile-quality sound with zero compromise
The SubSeries 250 is crafted using the highest quality components, custom-tooled mechanics, and state-of-the-art driver technologies. PSB’s careful engineering and precision manufacturing results in a subwoofer that is capable of 200 watts of continuous power and dynamic peaks of 300 watts. The SubSeries 250 was built to meet the needs of even the most discerning audiophile.
More powerful bass with less energy
Designed in collaboration with sister company NAD Electronics, the SubSeries 250 uses a custom-designed, high-current 200 watt MOSFET amplifier. This highly-efficient and powerful Class D discrete MOSFET amplifier uses less energy to produce more power while reducing standby power to an industry low and its smart bass limiting circuitry prevents the woofer and amplifier from being overdriven with any input level.
A natural fit for any space
Placement throughout the home is easy thanks to its compact design, housed in a timeless, furniture-like cabinet. With rear-mounted volume, crossover and phase controls, this subwoofer is extremely versatile and can easily be integrated into your existing setup. Experience the power and intensity of a world-class subwoofer, all from a compact cabinet with a 10″ (254mm) woofer. The SubSeries 250 is small enough to tuck away in any room but big enough to blow you away with sharp, articulate and forceful bass.
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 2.5 metre power cord
- Durable MDF cabinet with high-gloss finish
- Removable grille
- (W x H x D) 345 x 375 x 365mm
- Weight: 16 kg
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 uncoloured 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.
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.
| SUBSERIES 250 Data Sheet  |
SUBSERIES
Spec Sheet |
SUBSERIES 250 Manual |
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 uncoloured 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.
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.
