PSB Alpha S8 Subwoofer 8"

PSB Alpha S8 8" Powered Subwoofer at Vinyl Sound Buffalo NY

The PSB Alpha S8 is a compact 8" powered subwoofer from PSB's Alpha Series, delivering robust bass for music and home theatre applications in a space-saving cabinet suited to smaller rooms, desktop systems, and installations where the larger Alpha S10 would be impractical. Available at Vinyl Sound in Buffalo, New York, the S8 features a custom 8" long-throw textured polypropylene cone woofer with rubber surround, a 150W continuous (210W dynamic peak) high-efficiency digital amplifier, and DSP processing tuned by PSB's engineering team for a flat frequency response and bass extension to 32Hz (−10dB). Frequency response measures 35Hz to 150Hz (±3dB). The variable 50–150Hz low-pass crossover with LFE bypass, phase switch, AutoOn/Standby, and gold-plated RCA inputs are all rear-panel mounted. A USB power jack supports the optional RT100 wireless receiver accessory. Rubber bumpers and carpet spikes are included. The Alpha S8 is part of Vinyl Sound Buffalo's full speaker collection, which includes subwoofers, bookshelf, floorstanding, and centre channel speakers from leading audiophile brands.

Amplifier, DSP, and Driver Technology

Despite its compact 0.86 cubic foot (24.4-liter) bass reflex enclosure, the PSB Alpha S8 delivers the same 150W continuous and 210W dynamic peak amplifier output as the larger Alpha S10, through the same high-efficiency digital amplifier platform. The 8" long-throw driver's polypropylene cone and rubber surround are tuned in conjunction with DSP processing to achieve 32Hz at −10dB — deeper than many competing 8" subwoofers at its price point. PSB's DSP implementation corrects the frequency response for a flat output curve across the S8's operating range, improving both music accuracy and home theatre bass impact relative to a passively-tuned design.

Controls, Connectivity, and Placement

The Alpha S8's rear panel provides the same control complement as the Alpha S10: rear-mounted volume, variable crossover (50–150Hz) with LFE bypass, phase switch, AutoOn/Standby switch, low-level RCA inputs with gold-plated connectors, and a USB power jack for the optional RT100 wireless receiver. The S8's cabinet measures 11½" × 12½" × 15¼" — significantly more compact than the S10's 14" × 14⅛" × 17½" — making it well suited to placement in tighter spaces, on AV cabinet shelves, or in smaller rooms. Rubber bumpers and carpet spikes are included for placement on any floor surface.

Specifications

Frequently Asked Questions

What is the difference between the PSB Alpha S8 and Alpha S10?

The PSB Alpha S8 and S10 share the same 150W continuous / 210W dynamic peak amplifier, DSP platform, rear-panel control layout, and feature set, but differ in driver size, cabinet volume, and bass extension. The S8 uses an 8" woofer in a 0.86 cubic foot enclosure extending to 35Hz at ±3dB and 32Hz at −10dB, while the S10 uses a 10" woofer in a 1.45 cubic foot enclosure extending to 28Hz at ±3dB and 22Hz at −10dB. The S8 is better suited to smaller rooms and tighter spaces, while the S10 is preferred for larger rooms, full home theatre systems, and listeners who prioritize maximum bass extension.

How low does the PSB Alpha S8 play?

The PSB Alpha S8 measures 35Hz to 150Hz at ±3dB and has a measured LF cutoff of 32Hz at −10dB. DSP processing tuned by PSB's engineering team achieves this extension from the 8" driver and 0.86 cubic foot enclosure, covering the bass range of most music and the majority of home theatre low-frequency effects content.

Can the PSB Alpha S8 be used wirelessly?

Yes, with the optional PSB RT100 wireless receiver accessory. The S8 includes a USB power jack on its rear panel for the RT100, which pairs with a compatible wireless transmitter at the AV receiver or amplifier. This allows the S8 to be placed freely in the room without a subwoofer cable. The RT100 is sold separately and is available through Vinyl Sound Buffalo.

What speakers does the PSB Alpha S8 pair with?

The PSB Alpha S8 pairs with any PSB Alpha Series speaker, including the Alpha T20 towers, Alpha P5 and P3 bookshelf speakers, and the Alpha C10 centre channel, forming a complete 2.1 or 5.1 Alpha Series system. The variable 50–150Hz crossover allows the S8 to integrate with virtually any satellite speaker regardless of its bass rolloff point. The S8 is also compatible with non-PSB speakers from other brands.

What is the LFE setting on the PSB Alpha S8?

The LFE setting bypasses the S8's internal variable low-pass crossover when the subwoofer is connected to a dedicated .1 channel output from an AV receiver. This prevents double-filtering, as most AV receivers apply their own bass management crossover to the subwoofer output. When connecting via stereo line-level outputs without an AV receiver's bass management, the variable crossover control is used to set the rolloff point.

Is the PSB Alpha S8 good for music listening?

Yes. The Alpha S8's DSP-tuned flat frequency response and 32Hz bass extension make it well suited to both music and home theatre. For two-channel music listening, setting the crossover below the satellite speakers' bass rolloff point (typically 60–80Hz for compact bookshelf speakers) allows the S8 to add bass foundation without audible localization. PSB designed the entire Alpha Series for high-value music and movie performance.

Where to buy PSB Alpha S8 subwoofer in Buffalo NY?

The PSB Alpha S8 is available from Vinyl Sound, an authorized PSB Speakers dealer in Buffalo, New York. Vinyl Sound offers in-store demonstration, system matching with Alpha Series speakers, and shipping across the continental United States. Contact Vinyl Sound Buffalo by phone or email to purchase or arrange an appointment.