Overview

The Edifier T5S is a compact powered subwoofer featuring an 8-inch front-firing woofer with 70 W RMS amplification. It’s intended for desktop and small-room setups, rated to 35–115 Hz, and provides DSP-based low-pass and 0°/180° phase controls in a slim 18 mm MDF cabinet. The official US page lists an MSRP of 219.99 USD. [1][2]

Scientific Validity

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Official specifications state 35–115 Hz, 70 W (RMS), S/N ≥ 85 dB(A), with adjustable low-pass and phase controls. These are reasonable for nearfield/desktop use, but we found no independent third-party lab measurements specific to T5S as of August 16, 2025. Pending reliable measurements (e.g., distortion, max SPL vs. frequency), the score remains at the baseline. [1][2]

Technology Level

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A conventional Class-D amplifier with basic DSP handles crossover/phase alignment. Materials and topology (18 mm MDF, slim sealed-style vertical cabinet) are standard for the price tier—competent but not notably advanced relative to peers.

Cost-Performance

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At 219.99 USD, the T5S competes with PreSonus Eris Sub 8BT at 209.99 USD. The Eris 8BT extends to 30 Hz, offers variable HPF/LPF, and provides balanced TRS + RCA I/O (with Bluetooth). On user-facing functions and extension it is equivalent-or-better overall. Calculation: 209.99 USD ÷ 219.99 USD = 0.95, which rounds to 1.0 to one decimal place. [3][4]

Reliability & Support

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Edifier states a two-year warranty for home speakers purchased via authorized US/Canada channels. Model-specific long-term reliability data for T5S remain limited, but construction and stated support are typical for this price. [5]

Rationality of Design Philosophy

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The product emphasizes a slim, space-saving footprint and easy system integration over maximum low-frequency headroom. DSP helps with integration; enclosure volume still limits ultimate output/extension compared with larger boxes.

Advice

For desks and tight spaces, T5S is easy to place and integrate. If deeper extension and studio-style controls matter, the PreSonus Eris Sub 8BT (209.99 USD) is the stronger value. If you can accept a larger footprint and higher cost for substantially more output and depth, consider the RSL Speedwoofer 10E (339 USD). [3][4][6]

References

1. Edifier USA — T5s Powered Subwoofer (official). https://www.edifier.com/us/p/subwoofers/t5s (accessed Aug 16, 2025). Price 219.99 USD; specs incl. 35–115 Hz, 70 W RMS, S/N ≥ 85 dB(A), DSP controls.
2. Edifier (Global) — T5s Powered Subwoofer (official). https://www.edifier.com/global/p/subwoofers/t5s (accessed Aug 16, 2025). Specs overview.
3. PreSonus Store — Eris® Sub 8BT (official). https://www.presonus.com/products/eris-sub-8bt (accessed Aug 16, 2025). Regular price 209.99 USD; product overview.
4. B&H Photo — PreSonus Eris Sub 8BT price/specs. https://www.bhphotovideo.com/c/product/1775507-REG/presonus_eris_sub_8bt_compact_8_active_studio.html (accessed Aug 16, 2025). 209.99 USD; 30–200 Hz; 50 W RMS Class-AB; balanced TRS/RCA.
5. Edifier USA — Warranty Terms (US/Canada). https://edifier-online.com/pages/warranty-terms (accessed Aug 16, 2025). Home speakers: 2 years.
6. RSL Speakers — Speedwoofer 10E (official). https://rslspeakers.com/products/rsl-speedwoofer-10e (accessed Aug 16, 2025). Price 339 USD; product overview.

(2025.8.16)