Palmer River Main Passive 2-Channel Line Merger

Ground loops can turn your pristine stereo setup into a nightmare of unwanted noise and interference. The Palmer Main tackles this common problem head-on by allowing two stereo signals to feed a single device, such as when dual mixing consoles need to drive one stereo power amplifier. Through its clever resistor matrix design, it seamlessly blends two stereo input signals whilst maintaining complete galvanic isolation on input pair A via transformer coupling.

Operating entirely in passive mode, this unit achieves an exceptionally low noise floor with completely neutral sound reproduction. The substantial transformers handle high-level signals up to +20 dBu without any distortion, and they provide the flexibility to connect input pair A as unbalanced whilst keeping the output signal balanced. This passive operation means no power supply is required, making the Palmer Main incredibly reliable and virtually failure-proof in demanding environments.

Built for the rigours of professional use, the robust aluminium and steel construction paired with quality XLR connectors ensures this merge box will withstand the harsh realities of stage life. The Palmer Main offers sound engineers a straightforward solution to typical reinforcement challenges without compromising audio quality in any way.