Singxer SA-1 Review: Ranked #3 of 38

Last updated: October 13, 2026

The Singxer SA-1 ranks #3 out of 38 total Headphone Amplifiers for sound quality. See all Headphone Amps and DACs rankings for every top pick.

Prices on this page were last checked October 12, 2026 at 4:13 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Singxer SA-1 - ranked #3 of 38 Headphone Amplifiers · Editor's rating 4.8/5

#3 Singxer SA-1 eBay

Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible and it is transparent in practice. Singxer rates it at about 6.5 W into 32 ohms, enough to drive nearly any headphone including hard planar magnetic models, with 6.35 mm, 4.4 mm balanced and 4 pin XLR balanced outputs. Balanced XLR and RCA inputs plus a preamp output and two gain levels make it easy to fit into a desktop system.

Cons: It weighs 1.8 kg and is a large desktop box, so it is not something you move around. The Topping A50 III matches its rating and measured SINAD for less, and it needs a separate DAC since it has only analog inputs.

Released2021 (5 years ago)
Balanced OutputYes (4.4 mm, 4-pin XLR)
Device TypeHeadphone amp
Dimensions9.2” x 1.8” x 6.7” (234 x 46 x 170 mm)
Headphone Outputs6.35 mm, 4.4 mm balanced, 4-pin XLR balanced
InputsXLR, RCA
Output Power (32 ohms)6,480 mW (manufacturer rated)
OutputsXLR, RCA (preamp out)
SINAD121 dB (measured by Audio Science Review)
Volume ControlAnalog knob, 2 gain levels
Weight4 lbs (1.8 kg)