Used Whirlwind MD1 Headphone Amp

This used Whirlwind MD1 Headphone Amp is in good condition and fully functional, ideal for studio or stage monitoring. The MD1 provides powerful, clean headphone amplification with flexible input options including balanced XLR and 1/4" TRS connections, allowing easy integration with mixers or audio interfaces. It supports two headphone outputs with individual level controls, accommodating multiple listeners or performers. Ruggedly built for reliable performance, the MD1 is passive when signal levels permit and switches to active mode for higher volumes when powered by a standard 9V battery or optional external power supply. Compact and durable, it’s a trusted solution for clear monitoring without the bulk.