A high quality, professional grade headphone amplifier with 4 outputs. All inputs and outputs are designed for stereo signals via ¼” TRS jacks. Each output has its own buffer amplifier which results in ultra-low noise operation, each also having its own volume control. Furthermore there is enough signal-gain to use this amplifier with almost any headphone. A perfect add-on for any studio allowing the musicians to get a perfect feedback, so they can perform to their best.