Livewire HA04 4-Channel Stereo Headphone Amplifier
HA04 4-Channel Stereo Headphone Amplifier. The HA04 4-Channel Headphone Amplifier from Live Wire is a single-input headphone amp that provides high-quality audio monitoring for up to four pairs of stereo headphones, with individual volume control. It's the ideal solution for sound reinforcement, studio, choir, and other applications where space is limited.
