SINGXER SA 1 Class A Balance Headphone Amplifier SA1

The Singxer SA-1 is a high-performance, full-featured headphone amplifier and preamplifier based on Class A architecture and discrete, fully balanced circuitry. Completely analog, there is no EMI interference from digital control to disrupt the audio signal. ROHM input transistors provide very low noise and excellent performance. The output stage uses multi-stage current amplification, similar to that found in a high-power amplifier. Each channel has 2 pairs of 4A ON Semiconductor transistors to ensure low internal resistance and high output power. These circuits also incorporate a complete protection system against overcurrents, overloads, short circuits as well as thermal protection, DC protection and switch-on delay. This SA-1 also has a complete set of connectors. The input is asymmetrical RCA and symmetrical XLR. For the headphone outputs, the amplifier offers 4.4mm jack and 4-pole XLR balanced, and 6.35mm jack unbalanced. On the preamplifier output side, the SA-1 provides an unbalanced RCA output and a balanced XLR output. In order to fit any type of headphones or earphones, whether they are high-sensitivity or high-impedance models, the SA-1 offers a choice of gain (low or high). Product highlights Fully independent class A analog amp Super clean output with low distortion and low noise floor Seven inputs and outputs Fully balanced architecture Headphone amplifier and preamplifier Amplification type: Class A Two gain modes: low/ high Specs Inputs: Balanced XLR, RCA Outputs: Balanced XLR, RCA, Balanced 4.4mm, Balanced 4-pin XLR 4, 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 Dimensions: 9.2 x 6.6 x 1.8” (234 x 170 x 46mm) Housing material: Aluminum Color: Black