Overview

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The SA-SW5 is a dedicated wireless subwoofer for Sony systems such as BRAVIA THEATER (BAR 9 / BAR 8 / QUAD), HT-A9, HT-A7000/5000/3000, HT-S2000, and the STR-AN1000 receiver[1][3][4]. It uses a 180 mm driver with a 200×300 mm passive radiator in a 277×409×422 mm, 13.0 kg enclosure[1][2]. Connectivity is via Sony’s proprietary 5 GHz wireless link—not Bluetooth[2].

Scientific Validity

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Comprehensive third-party measurements (frequency response with ±dB tolerance, THD vs output, CEA-2010 max SPL) are not publicly available. Manufacturer documentation lists an FTC-rated continuous output of 130 W (2 Ω, 28–200 Hz band, ≤1% THD) and a 300 W reference at 100 Hz[2]. Driver and radiator sizes are specified[2]. Retail specs often state 28–200 Hz, but without tolerance this remains catalog information rather than verified transparency[5].

Technology Level

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Sony implements the Σ Magnetic Circuit, Separated Notch Edge surround, an S-Master digital amplifier, and a dedicated 5 GHz wireless (Wireless Sound Specification v4.0)[2][3]. These reflect competent engineering but do not, by themselves, demonstrate measured leadership. Net: a bit above industry average.

Cost-Performance

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With a representative U.S. market price of 699 USD[3], we found no cheaper product that offers the same user-level function (native wireless pairing to the supported Sony systems) with equal-or-better measured performance[3][4]. Under this condition, CP is 1.0 (the target is the cheapest equivalent option).

Reliability & Support

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Sony provides a standard 1-year limited warranty for home audio in many regions and maintains broad service coverage[6]. As a wireless sub, occasional placement-dependent interference is possible, but overall support infrastructure is typical. Firmware handling is primarily through the host device; sub-only user firmware release is uncommon[2].

Rationality of Design Philosophy

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Prioritizing easy placement via proprietary 5 GHz and seamless pairing is rational for real-world use[2][3]. However, absent third-party, measurement-first validation of acoustic performance, the approach leans more toward ecosystem convenience than proven transparency—hence a neutral score.

Advice

If you already own a compatible Sony bar/receiver and want cable-free integration, the SA-SW5 fits neatly. It provides clear manufacturer numbers—FTC 130 W RMS (28–200 Hz, 2 Ω, ≤1% THD)—but lacks independent verification of response linearity and distortion ceilings[2]. If native Sony wireless pairing is not required, an AVR plus a high-measured wired sub remains an alternative path; for strict Sony wireless pairing, the SA-SW5 is effectively the top option.

References

[1] Sony Asia, “SA-SW5 Specifications”, https://www.sony-asia.com/electronics/support/sound-bars-home-theater-systems-sound-bars-surround-speakers/sa-sw5/specifications, accessed Aug 19, 2025
[2] Sony, “SA-SW5 Operating Instructions (specs/wireless/FTC rating)”, https://www.snapav.com/wcsstore/ExtendedSitesCatalogAssetStore/attachments/documents/Speakers/ManualsAndGuides/Sony-SW5-Operating-Instructions.pdf, accessed Aug 19, 2025
[3] Sony Electronics, “SA-SW5 product page (compatibility/features)”, https://electronics.sony.com/audio/soundbars/all-soundbars/p/sasw5, accessed Aug 19, 2025
[4] Sony Support, “STR-AN1000 supports SA-SW5/SA-SW3”, https://www.sony.com/electronics/support/articles/00298743, accessed Aug 19, 2025
[5] B&H, “Sony SA-SW5 Specs (28–200 Hz listing/proprietary wireless)”, https://www.bhphotovideo.com/c/product/1656098-REG/sony_sa_sw5_7_1_300_wireless.html, accessed Aug 19, 2025
[6] Sony, “Consumer Limited Warranty (1-year typical)”, https://www.sony.com/electronics/support/res/manuals/W001/W0012412M.pdf, accessed Aug 19, 2025

(2025.8.20)