Signal Amplification: Experience superior audio performance with our sound splitter mixer, designed for both input and output signal amplification. This device features a 4-way output preamp and a powerful headphone amp capable of directly driving 300Ω headphones, ensuring clear and robust sound quality. Independent Switch: Enjoy complete control over your audio setup with the 8-way signal system, where each channel is equipped with its own independent switch and volume adjustment. The two-pole independent circuit design guarantees no interference or sound alteration, providing a seamless audio experience. 4 In 4 Out Configuration: This versatile amplifier mixer offers 4 inputs and 4 outputs, each with independent switches and volume controls. Customize your audio setup by freely setting the input, output channels, and volume levels to meet your specific requirements. No Interference: Designed with independent relays for both positive and negative polarity, this mixer includes a total of 16 sound relays. Even when sharing a common ground with input devices, any interference is isolated, ensuring that other channels remain unaffected for a clean and uninterrupted audio experience. Easy to Use: This professional mixing console amplifier is user-friendly, featuring a volume push block that can be set to the middle position to restore the signal. Slide it upward to amplify the signal as a preamplifier, making it simple to achieve the desired audio output with minimal effort.