PSB Alpha B Bookshelf Speakers Made in Canada, Metal Grills

PSB Alpha B Bookshelf Speakers Made in Canada, Metal Grills

Compact Canadian-made PSB Alpha B bookshelf speakers delivering balanced, articulate sound with excellent imaging and surprising bass extension—one of our top-selling bookshelf models over the past few years, in very good condition.

The PSB Alpha B is a two-way bass-reflex bookshelf speaker designed and manufactured in Canada by PSB Speakers, founded by industry legend Paul Barton. For buyers seeking a compact, cost-effective speaker that refuses to compromise sound quality for space, the Alpha B delivers exactly that balance. Using a solid modular bass-reflex cabinet loaded with PSB’s hand-built drivers and carefully tuned crossover network, the Alpha B combines a 5.25-inch polypropylene cone woofer with a 0.75-inch ferrofluid-cooled aluminum dome tweeter in a 2-way design that has earned praise from professional audio critics and consistently strong sales in our shop. At 89 dB anechoic sensitivity (91 dB in typical rooms), these speakers work well with a wide range of integrated amplifiers and receivers from 10–90 watts. This pair is in very good cosmetic condition and has been tested.

PSB’s National Research Council collaboration and proprietary driver development ensure genuine hi-fi performance well above typical budget bookshelf speakers. The rear-firing port allows flexible placement on stands or shelves, though wall-mounting is supported via keyhole slots and 1/4-20 brass inserts. Keep in mind that the rear-ported design means wall mounting may affect bass response, so stand mounting or shelf placement with some breathing room behind the speakers will deliver optimal performance. Gold-plated binding posts accept bare wire, spade connectors, or banana plugs for secure, high-quality connections. A particularly nice feature is the gently curved, perforated steel grille—not only does it provide a stylish finishing touch, but the metal construction offers practical child and pet proofing for the drivers, protecting your investment from accidental damage.

The cabinet construction combines structural plastic front and rear baffles with 0.63-inch-thick medium-density fiberboard side panels, providing solid build quality and internal rigidity that minimizes resonances and supports clean, uncolored sound. At 8.8 lbs per speaker, these feel substantial and well-built, reflecting PSB’s commitment to quality even in their most affordable designs.

Key Specifications:

Design: Two-way bass-reflex bookshelf loudspeaker

Drivers: 0.75-inch (19 mm) ferrofluid-cooled aluminum dome tweeter, 5.25-inch (133 mm) polypropylene cone woofer

Frequency response: 65 Hz – 21 kHz (±3 dB on-axis), 65 Hz – 10 kHz (±3 dB off-axis)

Sensitivity: 89 dB/W/m (anechoic), 91 dB (typical listening room)

Nominal impedance: 8 ohms (4 ohms minimum)

Recommended power: 10 – 90 watts

Terminals: Gold-plated binding posts

Mounting: Keyhole slots and 1/4-20 brass inserts for wall mounting (note: rear-ported design may be affected by wall placement)

Grille: Gently curved perforated steel (child/pet-proof driver protection)

Cabinet: 0.63-inch MDF with structural plastic front and rear baffles

Finish: Black ash

Condition: Very good cosmetic condition, fully tested

Dimensions: (Height x Width x Depth) 286 x 165 x 235 mm (11.25 x 6.5 x 9.25 inches)

Weight: 4 kg (8.8 lbs) each

At 8.8 lbs per speaker, the Alpha B offers enough cabinet volume and driver mass to produce convincing bass and dynamics while remaining easy to position on stands, shelves, or wall-mounted in real living spaces. The solid build quality contributes directly to the clean, controlled sound that has made these one of our most popular bookshelf speakers.

Made in Canada, these PSB Alpha B bookshelf speakers have proven themselves as one of our top-selling models for good reason: they offer an excellent combination of articulate sound, flexible placement options, practical metal grilles for driver protection, and strong build quality from one of Canada’s most respected speaker manufacturers—ideal for compact stereo systems, desktop setups, or surround channel duties.

Backed by Radique Audio’s 90-day warranty and our perpetual trade-back policy, you can purchase with confidence; asking $195.