The housing will be 1U height x ¼ rack width -110mm- and approximately 150mm deep. The rear panel includes an IEC connector with fuse holder and a rocker switch for power. The front panel includes a male 3-pin XLR for channel A, a male 3-pin XLR for channel B, a male 5-pin XLR for channels A/B, an A/B link switch with LED indicator and a BUZZer Kill switch with LED indicator to enable use during silent performances such as in theatre.