Potato score: 81.6

82%

psb Speakers CSIR SUB In-Room Subwoofer #1
psb Speakers CSIR SUB In-Room Subwoofer variant 1
psb Speakers CSIR SUB In-Room Subwoofer variant 2

psb Speakers CSIR SUB In-Room Subwoofer

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An elegant solution to immersive sound

Experience excellence where others fall short. The CSIR Sub integrates seamlessly into your design with its ultra-slim profile and versatile placement options. IsoAcoustics isolators guarantee impeccable sound quality, enhancing your entire audio system. Pair it with the CS 500W subwoofer amplifier for unparalleled clarity and depth every time.

Elevated sound with IsoAcoustics isolators

Rediscover your music and movies with enhanced clarity. The award-winning CSIR SUB features IsoAcoustics isolators for impeccable in-wall subwoofer sound quality, enhancing your entire sound system and allowing each component to perform at its best. The CSIR SUB's renowned PSB sonic signature suits music and home theatre, delivering exceptional audio quality. Every sound comes to life in stunning detail, offering an immersive listening experience.

Ultra-slim design for a stylish solution

Subwoofers are usually challenging to discreetly accommodate, but the CSIR SUB offers an elegant solution. Its ultra-slim design, measuring only 15 3⁄4” x 15 3⁄4” x 4 3⁄4”, seamlessly blends into your room decor, delivering powerful bass without compromising aesthetics. It's not just a subwoofer; it's a stylish feature on its own. Designed for custom sound  installations, it redefines style and space efficiency, making it a unique choice for applications where conventional solutions fall short.

Versatile placement

Choose the placement that suits your space. Whether you save floor space by wall-mounting it with the included bracket, setting it on the floor with the base, or discreetly placing it behind or under furniture, you can tailor your audio experience to your room’s layout. 

Amplifier Connection

Simplify your setup by marrying your CSIR Sub with the CS500W for a match made in heaven. Expertly tuned for precise, detailed bass response, it can comfortably handle the most demanding home theatre and music tracks. Combining the CSIR Sub and CS 500W creates a harmonious audio experience that takes your sound system to new heights, delivering unmatched clarity and depth to every note and beat.

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Overall Score 82/100

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Nicely Roasted

Deep, controlled low-end and a renewed focus on room interaction define the CSIR SUB In-Room Subwoofer, pairing a 10" glass-fiber driver with IsoAcoustics isolation to deliver cleaner, more focused bass and a wider soundstage. Early coverage by Jay Garrett and The Ear Editor highlights the integrated isolation and PSB's ISE demo.

Pros

  • Integrated IsoAcoustics isolation yields greater clarity, focus and a more open three-dimensional soundstage.
  • One of the first PSB models to feature built-in IsoAcoustics feet, shown at ISE, signaling a deliberate improvement in speaker–surface interaction.

Sound Quality

86/100

Bass

88/100

Specs indicate strong low extension (LF cutoff -10dB at 20Hz; ±3dB 25–150Hz) and a 10" glass-fiber/PMI sandwich woofer with a balanced drive motor. No reviewer measurements or listening outcomes were provided, so score is inferred from measured spec sheet rather than independent listening comparisons.

Dynamics

82/100

10" driver with balanced drive motor, die-cast basket and recommended 40–200W amplifier suggest good transient control and headroom for its size. In absence of dynamic-response listening tests or reviewer comments, rating is inferred from motor/driver design and power handling.

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Integration

74/100

No reviews or listening reports supplied that describe room integration or 'disappearing' blending with mains. Spec items (wall bracket/floor stand, recommended power 40–200W) enable flexible placement and matching, but Features ≠ Integration; add outcome evidence or lower Integration.

Build Quality

86/100

Solid materials listed: MDF cabinet, die-cast basket, glass-fiber/PMI sandwich cone and rubber surround indicate robust construction. No durability or finish issues reported in reviews because no reviews were supplied.

Features Connectivity

80/100

Passive baseline applied.

Value for Money

68/100

Price was not provided (N/A) and no reviewer commentary on cost-effectiveness was available. Included wall bracket and floor stand add value, but absent a price point the value assessment is conservative.

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