PSB PWM1 3-Driver On-Wall Speaker

PSB PWM1 On-Wall Speaker at Vinyl Sound Buffalo NY

The PSB PWM1 is a three-driver 2-way on-wall speaker built around a 1-inch titanium dome tweeter with ferrofluid and two 4-inch carbon fibre woofers with four-layer voice coils, rubber surround, and cast basket, all in a bass reflex MDF cabinet measuring 28 inches wide by 6.5 inches tall by 3.38 inches deep. Available at Vinyl Sound in Buffalo, New York, the PWM1 is the entry point in PSB's PWM on-wall speaker series, sharing the same cabinet depth, height, and finish options as the PWM2 and PWM3 in the most compact 28-inch footprint. The 2-way design routes the audio signal to a titanium dome tweeter for the high-frequency range and to two 4-inch carbon fibre woofers for the midrange and bass, without a separate midrange driver layer. The bass reflex cabinet extends low-frequency output to 70Hz (±3dB) with a -10dB point at 50Hz. The PWM1 delivers 85dB anechoic sensitivity into a nominal 8-ohm load. The included wall mount bracket supports horizontal installation below or above a display for center channel or L/R stereo use, or vertical installation as a narrow 6.5-inch-wide column speaker for L/R or surround channels. The bracket is not rated for ceiling mounting. Satin Black and Satin White finishes allow the PWM1 to match the wall surface or display surround. The PWM1 is part of Vinyl Sound Buffalo's full speaker collection, which includes on-wall, in-wall, in-ceiling, outdoor, powered, and floorstanding speakers from leading audio brands.

2-Way Design: Titanium Dome Tweeter and Dual Carbon Fibre Woofers with Four-Layer Voice Coils

The PWM1 is a 2-way speaker — it uses two driver stages instead of three. The 1-inch titanium dome tweeter handles high-frequency reproduction above the crossover frequency, and the two 4-inch carbon fibre woofers handle both the midrange and bass frequencies below the crossover. In a 3-way speaker like the PWM2 or PWM3, a separate set of dedicated 3-inch midrange drivers covers the frequency band between the woofer and tweeter, allowing each driver stage to operate over a narrower frequency range with less interference between adjacent bands. In the PWM1's 2-way design, the 4-inch woofers cover the midrange band in addition to the bass band, which requires careful crossover tuning to maintain smooth midrange response from a driver sized primarily for low-frequency output. The four-layer voice coils in the two woofers improve power handling and thermal capacity by increasing the total wire length in the magnetic gap and the coil's heat storage mass. The carbon fibre cone material keeps the woofer diaphragm stiff across both the bass and midrange portions of its operating range, reducing cone breakup distortion in the upper portion of the woofer band. Cast baskets on both woofers provide a rigid chassis that maintains voice coil-to-gap alignment under the mechanical loads of normal speaker operation. The titanium dome tweeter is ferrofluid-cooled, using the magnetically suspended fluid in the tweeter gap to conduct heat away from the voice coil and into the magnet structure.

28-Inch Bass Reflex Cabinet, Slim Profile, and Wall Installation

The PWM1's cabinet is 28 inches wide and 3.38 inches deep — 8 inches shorter than the PWM2 and 20 inches shorter than the PWM3, while maintaining the same 6.5-inch height and 3.38-inch depth as both larger models. This shared profile means the PWM1 can be installed in wall positions that are too narrow for the PWM2 or PWM3 while remaining visually consistent in depth and height with those models in a mixed-unit surround sound installation. The bass reflex port tuning extends the two 4-inch woofers' combined low-frequency output to a -10dB point of 50Hz from the compact MDF enclosure. The magnetic cloth grille covers the full 28-inch face without visible hardware. The wall mount bracket attaches to the wall surface first; the PWM1 cabinet secures to the bracket in either horizontal orientation (28 inches wide, 6.5 inches tall) or vertical orientation (6.5 inches wide, 28 inches tall). The bracket is not designed for ceiling installation. Satin Black and Satin White finishes allow the PWM1 to be ordered to match a white or dark wall and display surround without painting the speaker or applying a custom grille cloth.

Specifications

Frequently Asked Questions

How does the PWM1's 2-way design differ from the PWM2 and PWM3?

A 2-way speaker divides the audio signal between two driver stages — in the PWM1, a titanium dome tweeter for high frequencies and two 4-inch carbon fibre woofers for midrange and bass. A 3-way speaker like the PWM2 and PWM3 adds a third driver stage — separate 3-inch midrange drivers — that covers the frequency band between the woofers and the tweeter. Dedicated midrange drivers in a 3-way design allow each driver to operate over a narrower portion of the frequency range, reducing the mechanical demands on each individual driver and allowing more precise crossover alignment with its neighbors. The PWM1's 2-way design relies on the 4-inch woofers to cover both the bass and midrange bands, which requires the woofer's carbon fibre cone to remain well-behaved over a wider frequency range. For typical residential listening at normal to moderate output levels, the PWM1's 2-way design produces smooth, full-range reproduction. The PWM2 and PWM3's 3-way designs offer advantages at higher output levels and in larger rooms where the wider operating range of each driver stage in the PWM1 becomes audible.

What does a four-layer voice coil do in the PWM1's woofers?

The two 4-inch woofers in the PWM1 use four-layer voice coils — each coil is wound in four concentrically layered passes of wire on the same cylindrical former, compared to the single or two-layer coils used in standard speaker drivers. Four-layer winding increases the total conductor length in the magnetic gap, which reduces the DC resistance per unit of generated mechanical force. Lower resistance per unit of force means the driver is more efficient — it produces more acoustic output per watt of electrical input. Four-layer coils also have greater thermal mass: more wire in the coil stores and conducts heat away from the former more effectively, reducing the temperature rise that occurs during sustained high-power operation. This improves the PWM1's power handling ceiling and reduces the thermal compression — output level drop caused by voice coil heating — that occurs when a speaker is driven hard over a long listening session. In a home theater installation running demanding film soundtracks at elevated levels, the four-layer voice coil's thermal advantage translates into more consistent dynamic performance over time.

In what situations is the PWM1 the right choice over the PWM2?

The PWM1 is the better choice when the available wall space is too narrow for the PWM2's 36-inch footprint, or when a 28-inch cabinet width is proportionally better matched to the display size or room scale. A 55-inch display with a 28-inch center channel below it maintains a visual proportion that a 36-inch PWM2 may exceed. In a smaller room where output requirements are moderate and the listening distance is shorter, the PWM1's 85dB sensitivity and 50Hz (-10dB) bass extension are fully adequate. The PWM1 is also the appropriate choice for rear surround or height channel positions in a larger home theater where the PWM2 or PWM3 is used for the front L/C/R stage — the rear surround positions require less output and smaller cabinet size is acceptable in those positions. For installations where all channels use the same model for tonal matching, the PWM1's 28-inch width allows a five-speaker surround installation in rooms where five PWM2 units would require more wall width than the room provides.

Can the PWM1 be used horizontally as a center channel speaker?

Yes. The PWM1 mounts horizontally below or above a display as a center channel using the included wall bracket. In horizontal orientation, the speaker is 28 inches wide and 6.5 inches tall. This profile fits below most displays sized 50 inches or larger without obstructing the screen, and the PWM1's 28-inch width does not extend past the display edges on a 50-inch to 65-inch screen. The two 4-inch woofers and titanium dome tweeter are arranged across the 28-inch horizontal span. Center channel dialogue and effects from the horizontal PWM1 project forward into the room from the wall surface. Using a PWM1 as center channel alongside PWM1 left and right speakers maintains a tonally matched front stage — all three channels share the same drivers, crossover, and cabinet construction, which produces consistent timbre as sounds pan across the front soundstage.

How does a 28-inch on-wall speaker compare to a typical soundbar as a TV speaker?

The PWM1 and a typical soundbar occupy a similar physical space — slim, wall-mounted, and positioned below or above a display — but differ significantly in driver quality, bass extension, and system integration capability. A typical soundbar contains multiple small full-range drivers aimed at generating a wide stereo image from a single compact enclosure, often using digital signal processing to simulate surround sound. The PWM1 uses a proper 2-way design with a dedicated titanium dome tweeter and two 4-inch carbon fibre bass reflex woofers — driver sizes and construction quality that are rarely found in a soundbar at comparable price. The PWM1 connects to a standard amplifier or AV receiver speaker output — any channel, any receiver — with no proprietary apps, Bluetooth pairing, or brand-specific ecosystem requirements. Multiple PWM1 units can be added to form a discrete multichannel surround system with matched tonal balance across all channels, which is not achievable with a soundbar as the starting point.

What bass does the PWM1 deliver from its 3.38-inch-deep cabinet?

The PWM1 extends bass to 70Hz (±3dB) with a -10dB cutoff at 50Hz from its 3.38-inch-deep bass reflex cabinet. The bass reflex port augments the output of the two 4-inch woofers at and below their free-air resonance frequency, extending the usable low-frequency range below what the woofers produce in a sealed enclosure of the same volume. In a home theater system paired with a subwoofer, the AV receiver's bass management crossover — typically set at 80Hz or 100Hz for small satellite speakers — routes bass below the crossover frequency to the subwoofer, and the PWM1 handles mid-bass and above. In a stereo music listening application without a subwoofer, the PWM1's 50Hz (-10dB) extension covers most bass fundamentals — kick drum, bass guitar, and lower piano notes — with the natural roll-off below 50Hz reducing the deepest sub-bass content that a larger speaker or subwoofer would reproduce. For full-range bass reproduction in a home theater, pairing the PWM1 with a PSB or compatible subwoofer provides the complete frequency range the on-wall cabinet alone cannot deliver.

Where to buy PSB PWM1 on-wall speakers in Buffalo NY?

The PSB PWM1 is available from Vinyl Sound, an authorized PSB Speakers dealer in Buffalo, New York. Vinyl Sound also carries the PWM2 and PWM3 for customers comparing cabinet widths and driver configurations across the PWM series. Free shipping is available across the continental United States. Contact Vinyl Sound Buffalo by phone or email to purchase the PWM1 or discuss which PWM model fits your wall dimensions and home theater layout.