GS-HA011 is the belt-pack version with transformer-balanced input and gain adjustment. It is aimed at long lines or environments where greater input isolation is required than on a standard portable amplifier.

• Transformer-balanced XLR input with loop output.
• Recessed input gain control.
• 6.35 mm and 3.5 mm headphone outputs.
• Power from 9 V PP3 battery or external DC supply.