Overview

The QS30 is a compact under-monitor soundbar supporting USB audio and Bluetooth 5.4. It uses dual 2” full-range drivers (5W RMS total) with independent cavities and bass-reflex ports, includes a built-in microphone, RGB lighting via TempoAbyss, and app control through Edifier ConneX/TempoHub for EQ, lighting, and firmware updates［1][2］.

Scientific Validity

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Manufacturer specs indicate a 90Hz–18kHz bandwidth with constrained extension, 5W RMS total output suitable for near-field, and S/N ≥ 85 dB(A) typical for desktop use［2][4］. Wireless supports Bluetooth 5.4 (SBC)［1］. With no credible third-party measurements yet, we rate 0.3 based on these spec-level limitations that align with problem-level expectations.

Technology Level

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Conventional small 2.0 design plus USB audio and BT 5.4 (SBC), complemented by app integration, RGB control, and a MEMS mic［1][2］. This meets baseline expectations without audio-centric innovation beyond the class standard.

Cost-Performance

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Using USD 63 for QS30 and selecting Creative Pebble V3 (USD 44.99) as the cheapest equal-or-better comparator—USB audio + Bluetooth present, and 8W RMS vs 5W RMS—the score is 0.7［3][5］.

Reliability & Support

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Edifier provides global product/support portals and companion apps［1］. Domestic listings indicate 1-year warranty coverage［4］. Simple, low-stress USB-powered architecture supports a moderately positive 0.7.

Rationality of Design Philosophy

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The product prioritizes compact placement and visual customization over maximizing measured audio transparency. Given the modest bandwidth and output, we assign a neutral 0.5.

Advice

Choose the QS30 if you want a slim bar under your monitor with RGB, USB audio, BT, and a built-in mic. For more output and bandwidth at similar or lower cost, a compact 2.0 set like Creative Pebble V3 offers stronger value.

References

[1] Edifier, QS30 Product Page, https://www.edifier.com/global/p/computer-speakers/qs30, accessed 2025-08-30
[2] Edifier, QS30 User Manual (PDF), https://edifier.com.my/wp-content/uploads/2024/09/QS30-User-Manual.pdf, accessed 2025-08-30
[3] Creative Labs, Pebble V3 Product Page, https://us.creative.com/p/speakers/creative-pebble-v3, accessed 2025-08-30
[4] Yodobashi, QS30 Listing (specs/warranty/price), https://www.yodobashi.com/ec/product/100000001008742771/, accessed 2025-09-01
[5] Newegg, Creative Pebble V3 price range (floor confirmation), https://www.newegg.com/p/pl?d=creative+pebble+v3, accessed 2025-09-01

(2025.9.1)