[🎶SG] SINGXER SA-1 V2 (SA1 V2) Fully Balanced Headphone Amplifier

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SINGXER SA1 V2 Headphone Amplifier

V2 Updates:

> 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
> Version two includes upgrades to the PCB routing and DC performance.
  > Adjusted the output impedance to enhance the current output capability, low resistance output impedance of 0.25 ohms (balanced) and 1.1 ohms (single-ended); high resistance output impedance of 10 ohms (balanced) and 11 ohms (single-ended); balanced output port has more thrust;

  > Optimized PCB alignment and adjusted the DC bias design of the line to improve DC performance.

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Descriptions:

> An 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.

> Call it beginner’s luck or pure talent: Singxer has knocked this one out of the park. > The SA-1 offers superb amplification, vanishingly low noise floor, and nominal distortion. It’s a great choice for anyone looking to graduate to a high-end balanced amplifier that can double as a preamp. 

> Fully independent Class A analog amplifier
> The Singxer SA-1 is a class A pure analog amplifier. Using simple circuits that draw the same amount of current and consume the same amount of energy whether receiving a signal or not, this is the most straightforward of amplifier types. It isn’t subject to electromagnetic interference caused by digital components, so its total harmonic distortion and signal-to-noise ratio are exceptionally low. 

> 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. 

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Specifications:

> 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
> 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)

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