Singxer – SA-90 Class AB Mono Power Amplifiers

SINGXER SA-90 MONO POWER AMPLIFIERS

This is a high-performance monaural split HIFI class AB amplifier. It adopts a design with ultra-high bandwidth, ultra-low noise, and ultra-low distortion, and its performance indicators have reached the world's leading level. The left and right channels are completely separated and independent, achieving the ultimate level of channel separation. The power amplifier circuit adopts self-developed high-performance differential amplification high-speed circuit, which has the characteristics of low noise, low distortion, and high sound quality.

Features

• High and low gain adjustment 16/23db; Support high and low gain adjustment Single-End balanced switching, double input switching, no mutual interference
• Power supply capability for rich material design: each channel is powered by a shielded ring transformer with a rated power of 300 watts (maximum short-term power can reach 500 watts); 20000uF large continuous wave current for Rubycon electrolytic capacitor; designed 4 separate ultra-low noise power supplies for the small signal section of the circuit.
• Handcrafted precision matching of differential grades, paired with high-quality components such as precision resistors and imported thin film capacitors; The circuit adopts a simple design, but transistors with excellent linearity are used wherever the audio signal passes through.
• Under the same level of performance, we adopted a low open-loop gain design, achieving low transient intermodulation distortion and excellent listening experience.

• Supports switching between two types of inputs with single ended balance, without interfering with each other.
• Advanced speaker protection function: overheating switch, overload, DC protection
• 4 discrete ultra-low noise power supplies are designed for the small signal part of the circuitManually fine-tuned differential stages, combined with high-quality components such as precision resistors and imported film capacitors; the circuit is simple in design, but transistors with particularly excellent linearity are used where the audio signal passes.
• With the same level of performance, we use a low open-loop gain design to achieve low transient intermodulation distortion and obtain low transient intermodulation distortion; excellent listening experience;

Optional 12V Trigger Input

Exclusive Magna Hifi Upgrade: 12V Trigger Input for Singxer SA-90 Mono Power Amplifiers

This modification is done securely and safely — with full respect for the original design — and without voiding your warranty.

When you order a stereo pair, a short split cable is included to make setup easy.
You can choose an optional 2 meter or 5 meter trigger cable at no extra charge. Custom lengths are available on request.

See our  SA-90 trigger input blog for more information on the 12 Trigger input