RDL DB-TPSML1A – Format-A XLR Mic/Line Sender, Black is backordered and will ship as soon as it is back in stock.
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What is the RDL DB-TPSML1A?
The RDL DB-TPSML1A is a Format-A single-pair sender with a balanced XLR input that accepts either microphone or line-level sources. It sends a wall-plate mic or line signal over twisted pair with switch-selectable gain and phantom power.
How does it work?

A rear-panel GAIN switch sets MIC LOW (46 dB), MIC HIGH (60 dB) or LINE (unity) operation, and a PHANTOM switch turns P24 phantom on or off for mic sources; phantom is not applied in LINE mode. The preamplified signal feeds one Format-A pair, A, B or C, selected with a rear switch, so other single-pair senders can share the cable. Signal and power pass through on RJ45 jacks, and power arrives remotely or from a fused local terminal block input fed by a 24 Vdc supply such as the RDL PS-24AX power supply (the international version of RDL's recommended 24 Vdc supply). The DB-TPSML1A has a black front-panel laminate for darker wall finishes and AV furniture. Receive it with an RDL D-TPR1A and mount it in an RDL WB-1U wall box.
What are the key features?
- Mic or line XLR input — A switch selects microphone or balanced line-level operation.
- Three gain settings — Mic High 60 dB, Mic Low 46 dB and Line unity cover common sources.
- Switchable P24 phantom — Phantom can be enabled for condenser microphones.
- Pair selection — The output is assigned to pair A, B or C.
- Power LED in XLR — A blue LED in the XLR shows the module is powered.
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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