Singxer SA-1

Headphone AMP Fully Balanced Discrete Class A Amp/Preamp

    Fully independent class A analog amp
    Seven inputs and outputs
    Fully balanced architecture
    Headphone amplifier and preamplifier
Regular price $599.00 USD
Sale price $599.00 USD Regular price

A Pure Analog Amp From a Digital Heavyweight

Since 2011, Singxer has operated as an ODM and OEM in the audio industry as well as developed their own DACs and digital interfaces. Best known for their work in digital audio, they’ve made technical achievements in clock systems, phase-locked loop technologies, and more. In a bit of a departure for a company that so heavily favors digital products, Singxer has now released the SA-1, a fully balanced pure analog class A amplifier.

Fully Independent Class A Analog Amplifier

Class "A" is a type of amplifier circuit that reproduces the whole signal wave resulting in a higher-fidelity output with no cross-over distortion. The Singxer SA-1 features a true four-way fully independent, fully discrete Class-A amplification circuit design. It is a pure analog circuit with pure analog control without any EMI(Electro-Magnetic Interference) caused by digital controls.

Super-Clean Signal Amplification

The Singxer SA-1 chipset features high-quality premium components that enable the device to provide a super-clean output with ultra-low harmonic distortion and noise ratings. The output has a THD+N rating of -120dB @ 1kHz A-weighted. The output has a super-low noise floor even with sensitive pairs of IEMs and Headphones there is no sign of distortion or noise. All you get is a pitch dark background where the minutest of musical details pop out making the output full of life.

Seven Inputs And Outputs

The Singxer SA-1 can be used as a headphone amplifier or preamplifier. As a headphone amplifier, it supports balanced XLR input, RCA input on the back panel, and three outputs on the front panel: 4-pin balanced XLR, balanced 4.4, and single-ended 6.35. As a preamplifier, it supports balanced XLR input, RCA input, and two outputs: balanced XLR and RCA.

Circuit Protection

Singxer has designed the internal audio circuitry of the SA-1 to provide protection against electrical issues like overcurrent, overload, overheating, short circuit, Start-up delay, and more. So users can enjoy their music without worrying about power causing any trouble to the device.

Inside the Box

  • 1 x Singxer SA-1
  • User Manual

1 Year Warranty

The Singxer SA-1 Comes with a 1 year warranty on the AMP & DAC only. Warranty doesn't apply to the included accessories.

Technical Details

Amplification type
Class A
Two gain modes
low/ high
Balanced XLR, RCA
Balanced XLR, RCA, Balanced 4.4mm, Balanced 4-pin XLR 4, Single-ended 6.35mm
Dynamic range
147dB @A-wt
Output power
6480mW @ 32Ω
2000mW @ 120Ω
380mW @ 600Ω
Power supply
100-240V AC, 50/60Hz
What’s included
1x Singxer SA-1
1x Power cable

Processing Time

This product is in Pre-order period. Pre-orders are provided for items that have not reached us and will take some time to be shipped out.

Pre-order Period: 5-7 working days


  • No cancellation of orders once ordered.
  • All orders to be shipped out sequentially.

Authentic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

Worldwide Free Shipping

We are located in China but send our products worldwide for free. T&Cs apply.

1 Year Warranty

We provide 1 year warranty for the all products except the cables and accessories*.

Online Support

Need help?, we are here to assist you
Monday - Friday: 09:00 – 18:00 (UTC+8)

Customer Reviews

Based on 1 review
Great measurements that translate to IRL performance

Usually I do not like looking at measurements too much since there's a few ways to screw with them to make them look better or worse, in the case of the sa-1 it is currently one of the top measuring headphone amplifiers on the market which is very impressive by itself. Not only that, coming at this price point while being Class-A then switching to AB when the load gets heavier is pretty impressive. Overall, the amp sounds slightly warm but not overdoing it to the point where it wouldn't work with certain headphones, it is still very much natural/neutral sounding. I'd say it sounds less warm than the jot 2 while being more open and less compressed sounding, with lots of power which I never needed to use full power with any headphone, I've had it with the modius, and it worked very well, the zen dac sig which sounded even better, overall i think this is the best headphone amplifier at its price point.

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30-Day Return Policy

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