4 Channel Headphone Amplifier, Stereo Audio Amp Splitter with 4 Headphones Output Jacks and Audio Input - Ideal for Music Sharing and DJ

OverviewSpecifications:A stereo sound 3.5mm input portFour stereo 3.5mm output portsGain: +18dB (8x amplification)Input impedance: 47 kΩInput maximum signal: 5 VrmsMaximum output drive: 250 Ω 4 VrmsMaximum output non-distortion drive power: 150 mWSupport headset types: 16 Ω to 600 Ω (best drive is 32 Ω to 220 Ω impedance)Application: Suitable for use with computers, CD players, mobile phones, tablet computers, and other audio sourcesPower supply: 5V / 1AAmplification architecture: The main architecture of this product is a type 47 amplification circuit.How to Connect:Before use, ensure that all volume controls are set to the minimum. Then, connect the signal cable and the power supply.For low-resistance headphones with 16Ω, 22Ω, 32Ω, please adjust the volume appropriately. If the single output volume exceeds 150 mW, it may lead to distortion and a decrease in sound quality, resulting in unclear audio.The input audio plug must be a three-segment stereo connector.The input cable does not support 4-connector lines with a microphone function. Using a 4-plug signal cable for input may result in abnormal voice.The amplifier does not support 2-plug input cables, which may lead to one-sided or no audio output.Remember to turn off the volume for any unused outputs to avoid unexpected noise or interference.