Singxer
Singxer SA1 V2 Headphone Amplifier
Best balanced amplifier for audiophiles seeking pure, high-fidelity sound.
The Singxer SA-1 V2 is a fully balanced, pure analog Class A headphone amplifier and preamplifier. It offers exceptional audio performance with a vanishingly low noise floor and minimal distortion, building on Singxer's expertise in digital audio. This amplifier features a simple, robust design that eliminates interference for clean sound reproduction. With seven inputs and outputs, including balanced XLR and RCA, it provides versatile connectivity for various audio setups. The SA-1 V2 includes two gain modes and offers superb amplification for audiophiles seeking a high-end, reliable audio component.
$599.00
Owner Satisfaction
4.7
/ 5
Category Rank
53
/ 733
#53 in Headphone Amplifiers
Price vs Category Average
-57%
Below average
Inputs
Balanced XLR, RCA
/ Balanced XLR, RCA
Who it's for
- Audiophiles owning diverse headphone collections
- Purists seeking transparent and uncolored audio reproduction
- Desktop users needing a high-quality preamp hub
Who should skip it
- Minimalists working with limited desk space
- Users sensitive to equipment heat in small rooms
- Budget-conscious listeners seeking entry-level pricing
Performance breakdown
Signal Clarity
Industry-leading noise floor ensures an exceptionally clean and transparent audio path.
Power Output
Massive headroom effortlessly drives even the most demanding high-impedance planar headphones.
Connectivity Versatility
Comprehensive input and output options accommodate complex, multi-component desktop audio setups.
Build Integrity
Robust aluminum chassis provides excellent thermal management and long-term structural reliability.
Preamp Utility
Seamless integration as a high-fidelity preamp for powered monitors or power amplifiers.
Gain Flexibility
Dual gain modes offer precise volume control for both sensitive IEMs and power-hungry cans.
Key Specs
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
Features
- Fully independent Class A analog amplifier for pure sound
- Super clean output with exceptionally low distortion and noise floor
- Versatile connectivity with seven inputs and outputs
- Fully balanced architecture for superior audio quality
- Dual functionality as a headphone amplifier and preamplifier
- Adjustable gain with two modes (low and high)
- Upgraded PCB routing and DC performance in V2
What customers say
Customers consistently praise the Singxer SA1 V2 Headphone Amplifier for its exceptional sound quality and robust build. Many highlight its clean, powerful, and detailed audio reproduction, noting its ability to drive a wide range of headphones with authority. The amplifier's solid construction and premium feel also receive frequent commendation. Users often perceive it as offering outstanding value, performing at a level comparable to significantly more expensive units. This combination of high fidelity audio and durable design makes it a highly regarded choice for discerning listeners.
Know before you buy
The V2 version features upgraded PCB routing and improved DC performance, which further enhances the signal integrity and overall stability of the amplifier compared to the original model.
Yes, the SA-1 V2 functions as both a headphone amplifier and a preamplifier. You can connect it to your powered speakers or a separate power amplifier using the balanced XLR or RCA outputs on the rear panel.
Absolutely. With an output power of 380mW at 600Ω, the SA-1 V2 is designed to handle demanding high-impedance headphones with ease, ensuring clean and authoritative sound reproduction.
Yes, the unit features two gain modes—low and high. This allows you to optimize the volume range and noise floor for both sensitive in-ear monitors and power-hungry over-ear headphones.
Yes, it utilizes a fully balanced architecture throughout the signal path, which helps minimize crosstalk and interference for a cleaner, more precise audio experience.
The front panel provides three headphone outputs: a balanced 4.4mm jack, a balanced 4-pin XLR jack, and a standard single-ended 6.35mm jack to accommodate a wide variety of headphone cables.
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$599