1 input and output - Designed with 8 headphone output channels and 1 input channel, the HA800 headphone amplifier is capable of handling powerful audio setups, giving you precise and consistent music. High power stereo amplifier - Our headphone distribution amplifier features 8 high-power stereo amplifiers to deliver the highest sound quality, even at maximum volume, for a studio-quality audio experience. Precise output level control - The HA800 headphone mixer controls the output level of each channel, allowing you to fine-tune audio settings to the perfect balance for your listening needs. Ultra-low noise 4580 operational amplifier - 4580 Ultra-Low Noise Op Amp Experience crystal clear audio with the 4580 Ultra-Low Noise Op Amp. This feature ensures excellent performance and amplification while minimizing noise interference. DC 12 Volt Adapter DC 12 Volt Adapter included - Enjoy your music experience right out of with our included DC 12-volt adapter. Compatibility extends to Micro-headphone amp and several other headphone amp models. Ultra-compact stereo headphone amplifier for studio and stage applications. Enter a new dimension of audio experience with the HA800 headphone distribution amplifier. This 8-channel headphone amplifier is designed to amplify your sound, ensuring you enjoy your music at its best, no matter the volume. Headphone Amplifier 8 high-power stereo amplifiers deliver studio-quality stereo sound every beat. By controlling the output level of each channel, you can tune the sound to perfection. The ultra-low-noise 4580 op amp delivers exceptional performance and crystal-clear sound. Choose the HA800 headphone distribution amplifier for the perfect combination of power and precision in your audio journey. Specification: Input type:LINE IN (O IN) Output type:LINE OUT (O OUT) Built-in battery:None Recommended headphone maximum impedance:65-80 Ohm Type:Mini Amplifier Model:HA800 Power adapter:European standard Product size:about 19.6x5.7x3.1mm Product weight:350g Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC220V Colour:Black Material:Metal Package Contents: 1 * Headphone amplifier 1 * Power Adapter 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.