The Singxer SA-1 V2 Fully Balanced Headphone Amplifier combines cutting-edge technology with exceptional audio performance. Known for their expertise in digital audio, Singxer has ventured into the analog realm with the SA-1, a fully balanced pure analog class A amplifier. This product exemplifies Singxer’s commitment to high-quality audio, offering superb amplification, a vanishingly low noise floor, and minimal distortion. Ideal for audiophiles looking to upgrade to a high-end balanced amplifier, the SA-1 also doubles as a preamp, providing versatility and superior sound quality.

Here Comes An Analog Amp From A Digital Company

Since 2011, Singxer has been a leader in the audio industry, developing DACs and digital interfaces renowned for their precision. Their technical achievements in clock systems and phase-locked loop technologies have set them apart in the digital audio space. With the release of the SA-1, Singxer enters the analog market, offering a fully balanced class A amplifier that maintains the company’s high standards. The SA-1 is a testament to Singxer’s talent, delivering outstanding performance and reliability.

Fully Independent Class A Analog Amplifier

The Singxer SA-1 is a class A pure analog amplifier, utilizing simple circuits that draw a consistent amount of current and energy. This design eliminates electromagnetic interference from digital components, resulting in exceptionally low total harmonic distortion (THD) and a high signal-to-noise ratio (SNR). The SA-1’s pure analog design ensures clean and accurate sound reproduction, making it a top choice for audiophiles.

Seven Inputs and Outputs

Versatility is a key feature of the Singxer SA-1. As a headphone amplifier, it supports balanced XLR and RCA inputs, along with three outputs on the front panel: 4-pin balanced XLR, balanced 4.4mm, and single-ended 6.35mm. When used as a preamplifier, the SA-1 offers balanced XLR and RCA inputs, as well as balanced XLR and RCA outputs. This extensive connectivity allows the SA-1 to integrate seamlessly into any audio setup.

Product Highlights

The Singxer SA-1 boasts several impressive features:

Fully independent class A analog amplifier
Super clean output with low distortion and a low noise floor
Seven inputs and outputs for versatile connectivity
Fully balanced architecture for superior sound quality
Can function as both a headphone amplifier and a preamplifier
Two gain modes: low and high
Version two includes upgrades to the PCB routing and DC performance

Technical Specifications

Specification	Details
Inputs	Balanced XLR, RCA
Outputs	Balanced XLR, RCA, Balanced 4.4mm, Balanced 4-pin XLR, Single-ended 6.35mm
SNR	126dB
Dynamic Range	147dB @A-wt
THD+N	0.000078% @balanced input and no output load 0.000128% @balanced input and 33Ω output load
Noise Level	0.66µV @ Max output, SNR / DNR 147dB 300nV RMS @ Low gain, A-Weighting, 20Hz-22kHz
Output Power	6480mW @ 32Ω 2000mW @ 120Ω 380mW @ 600Ω
Power Supply	100-240V AC, 50/60Hz
Low-Resistance Output Impedance	0.25Ω (balanced), 1.1Ω (single-ended)
High-Resistance Output Impedance	10Ω (balanced), 11Ω (single-ended)
Dimensions	9.2 x 6.6 x 1.8” (234 x 170 x 46mm)
Housing Material	Aluminum
Color	Black
Weight	3.9lbs (1.8kg)