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Polk Audio PSW 505

Name: Polk Audio PSW 505
Brand: Polk Audio
SKU: 112683
Rating: 4.1 (3 reviews)

View at Polk Audio

Powered 12" Subwoofer

Polk's PSW505 boasts a very sturdily built, slot-loaded enclosure — by reducing port turbulence and distortion, the Slot Load Vent sends out bass that fills your room and still retains detail and shape. Inside this enclosure, Polk's hidden a brawny 300-watt RMS amplifier, which powers the high-quality 12" long-throw woofer. The woofer's Hi-Roll foam surround gives the cone more flexibility for back-and-forth movement. This beast sends out a lot of sound!.

12" Dynamic Balance® driver
Class D amplification
Bass response down to 23 Hz
Slot load venting
Klippel-optimized

Dynamic Balance® Woofer Design

Polk perfected the method of analyzing a speaker's microscopic behavior with laser Interferometry. With that information in hand, Polk engineers select the ideal combination of materials, geometry and construction techniques to literally “tune out” unwanted resonance. The result is a subwoofer that delivers pure, distortion free deep bass.

Klippel Optimized Long Throw Woofer

Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers optimized the woofer's motor structure, voice coil alignment and suspension for longer excursion and greater linearity bringing you the best possible performance even at the most extreme listening levels.

Slot load venting

Improves bass response. The wide, long slotted vent dramatically lessens turbulence, noise and distortion, pouring out a tidal wave of precise, thunderous bass!

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Overall Score 82/100

Nicely Roasted

Polk Audio's PSW 505 delivers authoritative, room-filling low end driven by a high-excursion 12" driver and slot-loaded port, extending to around 23Hz with a -3dB point near 28Hz. Its vented enclosure, variable low-pass and LFE input provide tight integration and punchy dynamics for music and movies, making it a compelling value-focused subwoofer for home theater systems.

Pros

Deep, authoritative bass extension courtesy of the front-firing 12" high-excursion driver and quoted 23Hz overall response.
Vented, slot-loaded port design and high-excursion driver deliver strong dynamics and headroom for film and music impact.
Flexible integration with variable low-pass control, LFE (unfiltered) input and pro-grade 5-way binding posts for system matching.

Sound Quality

85/100

Bass

86/100

Vented 12" front-firing driver with polymer composite cone and slot-loaded port plus a listed 23 Hz overall response and -3 dB point near 28 Hz indicate strong low-frequency extension and authority for its size. No comparative review outcomes provided, so score is generous but conservative versus full-size reference subs.

Dynamics

82/100

High-excursion 12" driver and vented enclosure suggest solid slam and headroom for music and movies at typical home volumes. Absent subjective reviewer notes on compression or transient behavior, score assumes good but not reference-level dynamic control.

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Integration

78/100

Spec sheet lists variable low-pass and LFE input which enable practical crossover matching, but no reviewer outcome language on blend or 'disappearing' integration was supplied. Features ≠ Integration; add outcome evidence or lower Integration.

Build Quality

80/100

Driver uses Dynamic Balance, polymer composite cone and hi-roll surround; magnetically shielded; pro-style gold-plated 5-way binding posts. No durability or finish reports available, so score reflects competent design and materials from the spec sheet.

Features Connectivity

80/100

Includes LFE (unfiltered), variable low-pass, and two pairs of pro-grade 5-way binding posts. Passive baseline applied.

Value for Money

88/100

Price not provided and no reviewer price-value outcomes were supplied, but Polk historically positions this model as a value-oriented subwoofer with solid performance for the money; absent explicit 'no-brainer' or 'best-in-class' language, score reflects strong perceived value.