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PSB Alpha S8 – 8″ Subwoofer in ash black


Huge Bass. Compact Price

PSB redefined high performance and high value with their legendary Alpha Series speakers and the new Alpha S8 powered subwoofer continues that tradition in the all-important bass region. The new Alpha S8 offers a more compact footprint at an affordable price, while delivering big time for music and home theatre systems where bass is a must. The Alpha S8 meets this challenge by featuring a long throw 8” woofer with polypropylene cone (for fast response) in a specially-tuned, bass reflex enclosure.

In stock



Frequency Range Response

On Axis @ 0° ±3dB 35-150Hz
LF Cutoff -10dB 32Hz

Impedance Nominal Input

Minimum 22k Ohms

Input Power

Recommended 15-120 Watts
Program 60 Watts

Amplifier Power

Continuous 150 Watts
Dynamic 210 Watts

Acoustic Design

Woofer (Nominal) 8” (203mm)

Textured Polypropylene Cone, Rubber Surround

Variable 50-150Hz with

LFE setting, B2

Crossover Low Pass Filter
Internal Volume Design Type 0.86 cu ft (24.4 liter)

Bass Reflex

Dimensions / Weights / Finish

Size (W x H x D) 11 1/2” x 12 1/2” x 15 1/4” *

(292 x 318 x 387mm)

Weight Net – TBD

Shipping – TBD

Finish Woodgrained
Features Rear Mounted Volume

Crossover Controls

Phase Switch

LFE Settings

Low Level Input

AutoOn/Standby Switch

Gold-plated RCAs

USB Power Jack for RT100 wireless

Rubber bumpers and spikes

Notes * Non-metric measurements are approximate.

All specifications are subject to change without notice.