3 Groups of Stereo RCA Input: with input switch knob, can switch multi-way input signal losslessly. As a preamp, it can greatly improve the sound quality, with large dynamic, rich details, smooth and clear sound.

　　With HiFi Sound and Tone Control: more smooth and delicate sound can be enjoyed by adjusting treble, mid and bass knob, and bypass function(turn high knob to the leftmost end) is added to turn off the tone control and enjoy original sound, adding much fun and higher playability.

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　　HiFi 3-Way Class A Stereo Audio Preamp 2.0 Channel Digital Preamp w/Tone Control

　　Item description

　　This product is located in USA Warehouse, 1-6 bz days can reach most USA regions.

　　Features

　　3 Groups of Stereo RCA Input: with input switch knob, can switch multi-way input signal losslessly. As a preamp, it can greatly improve the sound quality, with large dynamic, rich details, smooth and clear sound.

　　With HiFi Sound and Tone Control: more smooth and delicate sound can be enjoyed by adjusting treble, mid and bass knob, and bypass function(turn high knob to the leftmost end) is added to turn off the tone control and enjoy original sound, adding much fun and higher playability.

　　Mature Circuit & High-quality Components:

　　Reasonable and concise layout, left and right channel are powered and amplified independently.

　　2PCS NE5532

　　op amps, responsible for pre-amplification and tone control, pluggable socket design, easy to upgrade other op amps to enjoy music of better quality.

　　Linear power supply, more smooth and much purer just like battery, the sound is much clearer and the reproduction is more accurate.

　　Pure class A positive and negative pressure multistage independent rectifier filter and anti-interference circuit design, and the output power is strong and stable.

　　Attractive Appearance: whole aluminum alloy case and pure aluminum knobs, looks more fashionable and durable, can match perfectly with audio players, DAC, computer, amplifier, active speakers etc. to provide HiFi audio enjoyment.

　　Parameters

　　Audio input: 3 groups*stereo L/R RCA

　　Audio output: 1 group*stereo L/R RCA

　　Op amp: 2PCS NE5532

　　Color: silver

　　Frequency response range: 5Hz-50KHZ

　　SNR: 116dB @ 1KHZ

　　Input impedance: 50KΩ

　　Output impedance 600Ω

　　Distortion: