
This configuration uses the IO module for both direct outputs and inputs simultaneously. The first three banks provide eurorack-level direct outputs for the Xcelon mixer, while the last two banks provide inputs for the TRS module. The IO module can then be selectively patched to itself or accept other signals to feed the balanced outputs.
Balanced Audio Output
Balanced audio is essential in pro audio applications due to its immunity to noise introduced in long cable runs. Audio signals in this format are commonly used with pro audio interfaces, mixers, patchbays and live sound equipment.
The module’s twelve ¼-inch TRS jacks (1-12) output differential signals scaled to +4 dBu, which can drive long cable runs with high capacitive loads. The compact 6-channel layout is possible by using high performance balanced line driver ICs rather than much larger isolation transformers.
These differential or “balanced” signals are the key to noise rejection. Prior to signal output, a duplicate is made with an inverted polarity. Using a TRS cable, the original signal, SIGNAL +, is connected to the tip (T) of the plug, while the inverted signal, SIGNAL –, is connected to the ring (R). These two signals travel on separate wires within the same cable. At the balanced input, the inverted signal is re-inverted and combined with the original signal. Because any noise picked up across the cable affects both signals equally, it undergoes phase cancellation and is removed from the FINAL SIGNAL.

SPECIFICATIONS
- Width: 8 HP
- Depth: 1.38 in (35 mm)
- Weight: 3.1 oz (88 g)
- Output Impedance: 50 Ω
- SNR: > 102 dB
- Power: +12 V 90 mA, -12 V 90 mA
