Singxer SA-1 Professional Amp Review

The video is in Arabic.

Hey everyone,

The Singxer SA-1 is a fully discrete Class A amp. Thanks to the owner for sending it for review. Front outputs: 4-pin XLR, 4.4 balanced and 6.35, it works as a headphone amp or preamp, and it has XLR and RCA inputs. It puts out 6500 mW at 32 ohm according to the company, and has a Low/High Impedance mode. It weighs 1.8 kg. It was $599 at the time of the review.

Who is it for?

• Anyone who wants a neutral, clean amp that drives anything, from sensitive IEMs to the HIFIMAN Susvara.

Strengths

• Fully neutral, free of harshness and brightness.
• The soundstage is wide and deep, and layering and separation are excellent.
• One of the best devices I’ve tried at revealing detail without being annoying.
• One of the cleanest devices: zero hiss up to 85% volume with the sensitive Hidizs MS5.
• Plenty of inputs and outputs, and it runs cool even after 10 hours.
• The volume knob has resistance so you don’t turn it up by mistake, and it’s made of metal.

Weaknesses

• The gain switches are under the unit: you have to lift it to change them.
• The gain only gives 11 dB, less than other devices.
• It needs a strong DAC to reach its full power, and it has a limit on the voltage it takes from the DAC.
• High Impedance mode changes the sound on low impedance IEMs (like the Hidizs MS5).

Verdict

It’s worth its price for the level and options it has, and the best amp I’ve tried at the time of the review. My experience with amps is limited, so I can’t say if there’s anything better.

Note: this review is from 2024, so the price may have changed.

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