PSB Alpha P3 2-Way Bookshelf Speaker 4" Woofer (Pair)

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PSB Alpha P3 2-Way Bookshelf Speaker 4" Woofer (Pair) at Vinyl Sound Toronto Canada The Alpha P3 is a compact 2-way bookshelf loudspeaker from PSB Speakers (Pickering, Ontario, Can ada), available at Vinyl Sound in Toronto, Canada. The smallest main-channel speaker in PSB's revamped Alpha series, the P3 packs the same engineering principles that have defined PSB since 1991 into one of the most genuinely compact bookshelf enclosures in hi-fi. Developed by PSB founder and chief designer Paul Barton and tuned at Canada's acoustic research facilities, the P3 features a 0.75" black anodized aluminum dome tweeter with ferrofluid cooling and neodymium magnet, a 4" textured polypropylene woofer with dual-layer voice coil, and a frequency response of 57 Hz to 21,000 Hz (±3dB). SoundStage! Hi-Fi described the P3's tweeter as reaching to the sonic stratosphere with an ease and pristine clarity expected from speakers at many times its price. Available in Black Ash and Walnut Woodgrain vinyl finishes. Inverted Driver Layout and Linkwitz-Riley Crossover Engineering The PSB Alpha P3 uses the same woofer-above-tweeter driver layout found in the Alpha P5 and across PSB's Imagine and Synchrony series. The 0.75" black anodized aluminum dome tweeter sits below the 4" woofer, a placement that works in concert with the P3's fourth-order Linkwitz-Riley crossover network at 3,000 Hz. This combination keeps the outputs of both drivers in phase through the crossover region and tilts the combined in-phase lobe toward a seated listener at typical desktop or stand height, ensuring consistent tonal character whether the listener is standing, seated, or positioned off-axis. The tweeter employs ferrofluid cooling to prevent dynamic compression at sustained output levels and a neodymium magnet for high sensitivity and power handling. A front-mounted waveguide shapes the tweeter's directional behaviour, smoothing the frequency response at the crossover transition and broadening the sweet spot of the listening window. This level of crossover sophistication, using a fourth-order Linkwitz-Riley filter topology found in far more expensive speaker designs, is one of the Alpha P3's most meaningful engineering investments for its size and price. Custom Woofer, Bass-Reflex Cabinet, and Flagship-Grade Damping The 4" textured polypropylene woofer in the Alpha P3 was built specifically for this application rather than sourced as an off-the-shelf component. It uses a dual-layer voice coil and a powerful neodymium magnet structure for low distortion at high excursion, and a textured cone compound that prevents breakup modes at the upper end of the driver's operating range. A rear-firing bass-reflex port, using Paul Barton's original port tube concept refined over decades of Alpha series development, adds back-wave energy to extend low-frequency output to 57 Hz on-axis and a -10dB cutoff of 43 Hz. Cabinet construction combines MDF walls of varying thickness with internal bracing to control panel resonances, and the internal damping material is borrowed directly from PSB's top-tier flagship speaker lines and positioned precisely for maximum effectiveness. Despite a cabinet volume of just 3.1 litres, the P3 delivers bass output and midrange clarity that SoundStage! Hi-Fi described as shockingly refined and superbly detailed for speakers at its price point. The P3 is timbre-matched with the Alpha T20 towers and C10 centre channel, making it equally suited to stereo hi-fi and multi-channel home theatre as a surround speaker. Key Features 0.75" Black Anodized Aluminum Dome Tweeter: Ferrofluid cooling prevents dynamic compression at high volumes, neodymium magnet delivers high sensitivity, and a front waveguide smooths on-axis and off-axis response through the crossover region. 4" Textured Polypropylene Woofer with Dual-Layer Voice Coil: Custom-designed driver with rubber surround, dual-layer voice coil for low distortion at full excursion, and a textured cone that resists breakup in the upper woofer range. 4th-Order Linkwitz-Riley Crossover at 3,000 Hz: High-order acoustic filter minimizes phase error at the crossover point and controls directivity for even, consistent off-axis performance across a broad listening area. Woofer-Above-Tweeter Driver Layout: Inverted driver placement keeps the in-phase lobe of both drivers aimed at seated listening height for accurate imaging and tonal consistency regardless of listener position. Bass-Reflex Cabinet with 1.375" Rear-Firing Port: Port tube design first developed by Paul Barton extends low-frequency output to 57 Hz (±3dB) and a -10dB cutoff of 43 Hz from a cabinet volume of just 3.1 litres. Flagship-Grade Internal Damping Material: Damping material drawn from PSB's top-tier speaker lines and placed precisely inside the cabinet for maximum resonance control and midrange clarity. NRC-Informed Acoustic Tuning: Final voicing conducted by Paul Barton at Canada's acoustic research facilities, targeting a flat, measured frequency response for accurate, listener-preferred sound without fatigue. Acoustically Transparent Magnetic Grilles: Micro-perforated metal grilles attach magnetically and are designed to remain in place without audible penalty. Five-Way Gold-Plated Binding Posts: Accepts bare wire, banana plugs, and spade connectors for reliable, low-resistance connection to any stereo amplifier or AV receiver. Compact Footprint for Desktop, Bookshelf, and Stand Placement: At 5.125" x 8.625" x 6.875" (W x H x D), the P3 is genuinely compact enough to fit on a real bookshelf, a desktop, or a dedicated speaker stand without dominating the space. Available in Black Ash and Walnut Woodgrain Vinyl: Chrome front baffle accent and woodgrain finish options bring a premium visual quality to an entry-level price point. Technical Specifications Acoustic Design 2-Way Bookshelf, Bass Reflex, Rear-Firing Port Tweeter 0.75" (19mm) Black Anodized Aluminum Dome, Ferrofluid, Neodymium Magnet, Front Waveguide Woofer 4" (102mm) Textured Polypropylene Cone, Dual-Layer Voice Coil, Rubber Surround Crossover Frequency 3,000 Hz, 4th-Order Linkwitz-Riley Frequency Response (±3dB) 57 Hz to 21,000 Hz Frequency Response (±1.5dB) 67 Hz to 20,000 Hz LF Cutoff (-10dB) 43 Hz Sensitivity (Anechoic) 85 dB Sensitivity (Listening Room) 87 dB Nominal Impedance 8 Ohms Minimum Impedance 4 Ohms Recommended Amplifier Power 10 to 80 Watts Maximum Program Power 60 Watts Internal Volume 0.11 cu ft / 3.1 L Port 1.375" (35mm) Diameter, Rear-Firing Dimensions (W x H x D) 5.125" x 8.625" x 6.875" / 130 x 220 x 174 mm Weight (Each) 4.9 lb / 2.2 kg Finish Options Black Ash Vinyl, Walnut Woodgrain Vinyl Binding Posts Five-Way Gold-Plated Grille Micro-Perforated Metal, Magnetically Attached, Acoustically Transparent Warranty 5 Years, Parts and Labour Sold As Pair Frequently Asked Questions What is the PSB Alpha P3? The PSB Alpha P3 is a compact 2-way bookshelf loudspeaker from PSB Speakers, a Canadian brand based in Pickering, Ontario. It is the smallest main-channel speaker in PSB's Alpha series, featuring a 0.75" black anodized aluminum dome tweeter, a 4" textured polypropylene woofer with dual-layer voice coil, and a fourth-order Linkwitz-Riley crossover at 3,000 Hz. With a frequency response of 57 Hz to 21,000 Hz (±3dB) and a cabinet volume of just 3.1 litres, the P3 is designed for desktop listening, bookshelf placement, stand mounting, and surround-channel use in a PSB Alpha home theatre system. It is available at Vinyl Sound in Toronto, Canada. How does the PSB Alpha P3 compare to the Q Acoustics 3020i and Elac Debut B5.2? The PSB Alpha P3 is notably smaller than either the Q Acoustics 3020i or the Elac Debut B5.2, both of which use larger woofers and enclosures for greater low-frequency output. SoundStage! Hi-Fi noted that the Q Acoustics 3020i and Paradigm Monitor SE Atom generated more low-frequency heft than the P3 at comparable or higher price points, which is expected given their larger cabinets. Where the P3 stands out is in treble refinement, imaging precision, and midrange clarity: its aluminum dome tweeter and fourth-order Linkwitz-Riley crossover deliver a level of high-frequency extension and off-axis consistency that reviewers described as comparable to speakers at many times the price. The P3 is best understood as a specialist in accuracy and transparency rather than a competitor for maximum bass output. Is the PSB Alpha P3 good for desktop listening? Yes, the PSB Alpha P3 is particularly well suited to nearfield desktop listening. Its compact cabinet dimensions of 5.125" wide by 8.625" tall by 6.875" deep make it one of the few bookshelf speakers genuinely sized to fit on a typical desk or shelf without dominating the space. At close listening distances of two to four feet, the P3's precise stereo imaging, wide listening window, and refined aluminum dome tweeter performance are at their most impressive. It pairs naturally with a desktop integrated amplifier or a compact streamer-amplifier such as the WiiM Amp or the NAD D 3045, and works equally well with a turntable connected to an amplifier with a built-in phono stage. What is the Linkwitz-Riley crossover in the PSB Alpha P3 and why does it matter? The fourth-order Linkwitz-Riley crossover is an audio filter design that splits the signal between the woofer and tweeter at 3,000 Hz with minimal phase error. Unlike simpler first- or second-order crossovers found in many budget speakers, the fourth-order Linkwitz-Riley topology used in the P3 ensures both drivers combine in phase across the listening window, minimizing coloration in the critical crossover region where human hearing is most sensitive. This design is ordinarily associated with speakers at significantly higher prices and is a direct contribution from PSB's established Imagine and Synchrony series engineering to the entry-level Alpha range. Does the PSB Alpha P3 need a subwoofer? For music genres that rely on deep bass output below 57 Hz, pairing the Alpha P3 with a subwoofer is strongly recommended. The P3's 4" woofer and 3.1-litre cabinet reach 57 Hz (±3dB) with a -10dB cutoff of 43 Hz, which covers the fundamental range of vocals, acoustic instruments, and many genres at moderate volumes. For home theatre, electronic music, hip-hop, or larger-room stereo listening with significant sub-57 Hz content, a subwoofer from PSB's Alpha S8 or S10 series will extend dynamic range and low-frequency impact considerably. The P3 also pairs naturally with any other powered subwoofer connected to a stereo amplifier with a pre-out or subwoofer output. Can the PSB Alpha P3 be used in a home theatre system? Yes, the PSB Alpha P3 is an excellent choice for surround and rear channels in a PSB Alpha home theatre system. It is timbre-matched with the Alpha T20 towers, C10 centre channel, and Alpha S10 and S8 subwoofers, ensuring consistent tonal character as audio moves between channels. SoundStage! Access reviewed a complete PSB Alpha surround system including the P3 as surrounds and praised the system's dynamic range, imaging, and seamless timbral matching across all four speaker models. Its compact footprint and wide dispersion also make it practical for placement in typical surround positions without requiring large dedicated stands. What amplifier power does the PSB Alpha P3 require? The PSB Alpha P3 is rated for 10 to 80 watts from a compatible stereo amplifier or AV receiver. With a nominal impedance of 8 ohms and an anechoic chamber sensitivity of 85 dB, the P3 benefits from a clean, well-controlled amplifier rather than raw wattage. Entry-level integrated amplifiers from brands such as NAD Electronics, Cambridge Audio, and Yamaha perform well with the P3 in small to medium rooms. A minimum impedance of 4 ohms means it is advisable to verify that any chosen amplifier is stable at 4-ohm loads when driving the speakers at higher volumes. Where can I buy the PSB Alpha P3 in Toronto or Canada? The PSB Alpha P3 2-Way Bookshelf Speaker (Pair) is available at Vinyl Sound in Toronto, Canada. Vinyl Sound is an authorized PSB dealer offering the Alpha P3 in both Black Ash and Walnut Woodgrain finishes, with expert guidance on amplifier pairing, desktop setup, subwoofer matching, and PSB Alpha home theatre system builds. Visit Vinyl Sound in Toronto or shop online through the Vinyl Sound Canada store. Show more