Audiophile Tube Preamplifier Audio HiFi Electric Tube Amplifier 4 Inputs 2 Outputs Audio Interfaces Lossless Audio Switching Amplifier Built-in 5532 Chip

【Comprehensive Audio Input and Output Configuration】: Equipped with 4 sets of RCA audio input interfaces, it can access various audio source devices such as cellphones, computers, players, CDs, etc., and is connected to audio devices such as amplifiers, active speakers, etc. through 2 sets of RCA audio output interfaces to realize free switching and selection, ensuring that each link achieves a HiFi level of sound quality performance.