USED Sterling SHA4 4 Ch. Headphone Amp 150 but it also works well

but it also works well for live applications

and parametric 4-band EQ per input channel

and rugged build

and a rotatable horn

USED Sterling SHA4 4 Ch. Headphone Amp 150 but it also works wellThe Sterling SHA4 is a simple, practical way to split your signal for multiple listeners. It gives you four independent headphone outputs, each with its own level control, making it great for recording sessions, lessons, or shared practice setups. This is one of those small pieces that makes group situations a lot easier. Plug in, dial your level, and everyones covered. Key Features 4 channel headphone amp splits signal to multiple listeners