1、Excellent Sound: This 4 channel stereo headphone amplifier provides clear, clean sound and a wide dynamic range; The low noise 4580 operational amplifier ensures excellent audible performance, allowing you to achieve the best sound quality even at high volumes 2、Independent Volume Control: Each channel of the headphone amplifier has its own volume control, allowing every listener in the recording studio to adjust their volume while listening to the main mix, ensuring a personalized and comfortable listening experience 3、Versatile Compatibility: This 4 channel headphone amplifier is compatible with all models of headphone, featuring a 6.35mm stereo jack input and four outputs with 6.35mm stereo jacks, making it a versatile choice for recording studios and stages, compact and practical 4、Sturdy and Compact: This amplifier features a sturdy metal casing that can withstand the strictness of stage and studio use; Its compact size makes it easy to integrate into any audible setting; Powerful stereo amplifier provides excellent performance at any volume 5、Powerful Amplification Function: This headphone amplifier is equipped with four high power stereo amplifiers, can process up to four headphone at a time; Equipped with 12V power adapter to ensure reliable and consistent performance, meeting the needs of various scenes Item Type: 4 Channel Headphone Amplifier Material: ABS, Stainless Steel Input: 6.35mm Stereo Input Impedance: 100Ω Output: 6.35mm Stereo Output Impedance: 80Ω 1 x Headphone Amplifier 1 x User Manual 1 x Adapter