psb Speakers Alpha S8 – 8" Subwoofer
The PSB Alpha S8 brings deep, controlled bass to compact music and home-theater systems, combining an 8-inch long-throw driver, DSP-assisted bass-reflex design, and 150W amplification. ecoustics highlights its compact, high-output engineering, while adjustable crossover, phase, and LFE controls support flexible system integration and satisfyingly musical low-end weight.
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Nicely Roasted
Sound Quality
84/100
Integration
78/100
Build Quality
82/100
Features Connectivity
82/100
Value for Money
65/100
Pros
Compact bass-reflex design pairs an 8-inch long-throw driver with DSP and 150W amplification for extended, high-output bass.
Variable crossover, phase switch, LFE mode, and level controls provide useful setup flexibility for music and movie systems.
Gold-plated RCA inputs, auto standby, floor spikes, and rubber bumpers add practical installation convenience.
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SOUND QUALITY PERFORMANCE 84/100
Bass
87/100
No independent review text was provided; score derives from manufacturer specs: -10dB at 32Hz and on-axis ±3dB to 35Hz for an 8" driver in a 0.86 cu ft ported cabinet. That extension is strong for an 8" design—good low-end reach and useful output while not matching larger reference subs.
Dynamics
80/100
Scored from stated amplifier ratings (Program 60W, Continuous 150W, Peak 210W) and an 8" polypropylene cone with rubber surround. Expect competent transient response and reasonable headroom for small-room use; not a high-SPL reference sub but likely punchy for its size.
Assessments of Build Quality, Usability, and Overall Propositions.
Integration
78/100
Features that enable good integration are present (variable low-pass 50–150Hz, phase switch, LFE, crossover and level control). However, no review outcome language is available showing how it 'disappears' with mains or whether there is boom/overhang. Features ≠ Integration; add outcome evidence or lower Integration.
Build Quality
82/100
Manufacturer lists textured polypropylene cone, rubber surround, woodgrained finish, gold-plated RCAs, rubber bumpers and spikes. These indicate a solid consumer-grade build and finish appropriate for the price class.
Features Connectivity
82/100
Rear-mounted volume, crossover controls, phase switch, LFE settings, low-level input, Auto On/Standby, gold-plated RCAs and USB power jack for optional RT100 wireless dongle provide flexible setup and useful usability features.
Value for Money
65/100
At USD 649 for an 8" sub, the price is on the high side relative to peers; performance expected to be good for its size but price reduces perceived value absent demonstrable review-based superiority or unique performance claims.
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Specifications
- On Axis @ 0° ±3dB
- 35 - 150Hz
- LF Cutoff -10dB
- 32Hz
- Minimum
- 22k Ohms
- Recommended
- 15 - 120 Watts
- Program
- 60 Watts
- Continuous
- 150 Watts
- Dynamic, Peak
- 210 Watts
- 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
- 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.
Manufacturer's Description — psb Speakers
Huge Bass. Compact Price.
PSB's Alpha S8 powered subwoofer continues the tradition of high-performance and value. Despite its compact size and affordability, it excels in delivering robust bass for music and home theater systems. The Alpha S8 features an 8" woofer with a responsive polypropylene cone, housed in a specially tuned bass reflex enclosure for optimal performance.
Affordable Excellence With Audiophile Pedigree
PSB has been making critically-acclaimed speakers for more than 50 years and are known for subwoofers that deliver exceptional performance and value. The Alpha S8 will astound with adding lifelike realism for both music and movies to PSB speakers or any high-performance speaker.
Cutting-Edge Drivers and Amplification
The Alpha S8 stands out with its custom 8” long-throw driver and a well-tuned bass reflex enclosure, ensuring extraordinary bass performance. Its high-efficiency digital amplifier pumps out 210W of dynamic power for deep, precise bass. What's more, the S8 employs digital signal processing (DSP) to optimize performance, delivering a flat frequency response and impressive bass extension.
Space-Saving Design Fits Anywhere
The Alpha S8's rear-ported cabinet is incredibly compact, making it easy to place in any room. The rear panel hosts handy features like Volume and Crossover Controls, a Phase Switch, Low Level Input, AutoOn/Standby Switch, Gold-plated RCAs, a USB Power Jack for the RT100 wireless accessory, and supplied rubber bumpers and spikes for setting up on hardwood or carpeted floors.
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Authorized dealers for psb Speakers Alpha S8 – 8" Subwoofer
- Holt Hill — online and in-store — Andover, Massachusetts, United States (website)
- Abt Electronics — online and in-store — Glenview, Illinois, United States (website)
- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
- Alpha Stereo — in-store — Plattsburgh, New York, United States (website)
- Area Hifi — online and in-store — L'Eixample, Comunidad Valenciana, Spain (website)
- Art Sonique — France (website)
- Ash Forest Hi Fi — online and in-store — Kingston, Ontario, Canada (website)
- Audible Images — in-store — Melbourne, Florida, United States (website)
- Audio 46 — online and in-store — New York, New York, United States (website)
- Audio Advice — online and in-store — Raleigh, North Carolina, United States (website)
and 87 more verified dealers