RDL TX-LC2 – Unbalanced to Balanced Line Combiner, Stereo to Mono is backordered and will ship as soon as it is back in stock.
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What is the RDL TX-LC2?
The RDL TX-LC2 actively mixes two unbalanced -10 dBV line-level sources into one balanced mono output. It combines a stereo source to mono or mixes two separate sources for a balanced line.
How does it work?

The high-impedance inputs are isolated from each other, so the module can bridge an unbalanced stereo source without affecting stereo separation. An active summing amplifier mixes the signals, and gain is adjustable from -10 to +10 dB relative to the +4 dBu output. The 150 Ω balanced output drives high or low impedance, balanced or unbalanced lines with 10 Hz to 20 kHz (±0.25 dB) response. It runs from a 24 Vdc supply such as the PS-24AX power supply, or from 12 Vdc with reduced headroom; for unbalanced dual outputs, see the TX-MX2R.
What are the key features?
- Stereo to mono — Two unbalanced inputs mix to a single balanced output.
- Isolated inputs — Bridging a stereo source does not affect its separation.
- Output gain trim — Gain adjusts from -10 to +10 dB.
- 150 Ω balanced driver — The output drives balanced or unbalanced lines.
- 12 or 24 Vdc operation — The module runs from 24 Vdc, or 12 Vdc with reduced headroom.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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