Rapco SC100i Isolated Signal Combiner

The RapcoHorizon SC100i Isolated Signal Combiner is a passive utility box designed to combine two balanced XLR microphone or line signals into a single XLR output, utilizing a 1:1 internal isolation transformer on one input to eliminate ground loop hum, phase cancellation, and signal loading.

Selling Description

RapcoHorizon SC100i Passive 2-Channel Isolated XLR Signal Combiner

The RapcoHorizon SC100i is a road-ready passive signal combiner that safely sums two XLR inputs into a single XLR output. Equipped with a premium 1:1 isolation transformer on the secondary input, it prevents ground loops, hum, and phase issues when combining two audio sources into a single mixer channel. Housed in a heavy-duty steel chassis with high-grade Neutrik XLR connectors, the SC100i requires no external power or batteries—making it a vital utility tool for live sound engineers, houses of worship, and recording studios.

2-into-1 Passive Summing: Combines two balanced XLR sources into one output to save valuable console channels.

Transformer Isolation: Built-in 1:1 isolation transformer on the secondary input breaks ground loops and prevents impedance loading between sources.

100% Passive Design: Operates completely without batteries, phantom power, or external power supplies.

Tour-Grade Construction: Heavy-duty steel enclosure with recessed Neutrik XLR connectors for long-term stage reliability.

Versatile Applications: Ideal for summing dual guitar cabinet mics, top/bottom snare mics, choir mic pairs, or dual podium microphones.