RDL DB-TPSM2A – Format-A Dual Mic Preamp Sender, Black
RDL DB-TPSM2A – Format-A Dual Mic Preamp Sender, Black is backordered and will ship as soon as it is back in stock.
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RDL DB-TPSM2A – Format-A Dual Mic Preamp Sender, Black
What is the RDL DB-TPSM2A?
The RDL DB-TPSM2A is a two-pair Format-A twisted pair sender with two XLR microphone inputs and P48 phantom power, finished in black. Each studio-quality preamplifier can be set to automatic gain, fixed 40 dB or fixed 60 dB, and routed to Format-A pair A, B or C. The wall-mount module is powered remotely through its RJ45 connection and fits RDL WB-1U and WB-2U boxes or standard US electrical boxes.
How does it work?
The DB-TPSM2A sends two microphone signals over a single twisted pair cable to RDL Format-A receivers and distributors. Both XLR inputs provide IEC 48 V phantom power and accept dynamic or condenser microphones. In AUTO mode the module sets 60 dB of gain for dynamic microphones and 40 dB for condenser microphones; installers can lock gain to HIGH or LOW instead. A rear-panel switch for each preamplifier assigns its output to Format-A pair A, B or C. Because it uses only two pairs, a single-pair Format-A sender such as the RDL D-TPS1A can be daisy-chained through the second RJ45 jack, provided each source feeds a different pair. Power and all three audio pairs pass through both rear-panel RJ45 jacks. The module is powered through the cable from another module, a distributor such as the RDL RU-TPDA, or a power inserter like the RDL RU-TP4PW. RDL lists the PS-24AS (USA) or PS-24AX (international) as the recommended supply for the system. Format-A receivers such as the RDL D-TPR1A or D-TPR3A recover the audio at the far end. The black faceplate coordinates with RDL Decora-style controls, and the module mounts in an RDL WB-1U wall box or a standard US electrical box.
What are the key features?
- Two XLR mic inputs — Balanced inputs with P48 phantom power accept dynamic and condenser microphones.
- Automatic or fixed gain — AUTO sets 60 dB for dynamic and 40 dB for condenser mics, or select fixed LOW or HIGH gain.
- Pair selection — Each preamplifier output can be assigned to Format-A pair A, B or C.
- Daisy-chain capable — A single-pair Format-A sender can share the same cable run.
- Remote powered — The module draws power through the RJ45 twisted pair connection.
- Studio-quality circuitry — Precision active balanced design with CMRR above 80 dB.
Where is it typically used?
- Conference room
- Boardroom
- Training room
- House of worship
- Auditorium
- Multi-purpose room
Technical Specifications
| Model | DB-TPSM2A |
| Finish | Black |
| Inputs (2) | XLR (3 pin, 1=GND, 2+, 3-) |
| Gain (fixed) | 40 dB (LOW gain); 60 dB (HIGH gain) |
| Gain (AUTO) | 40 dB for condenser mics; 60 dB for dynamic mics |
| Maximum Input Level | >-18 dBu (LOW gain); >-35 dBu (HIGH gain) |
| Input Impedance | > 1 kΩ balanced |
| Phantom Power | P48 (48 V per IEC 61938: 2013) |
| Output | RDL TP Format A |
| Format-A Signal Pair Used | Switch-selectable A, B, or C (rear panel; one switch for each preamplifier) |
| Headroom (above +4 dBu output) | >18 dB |
| Channels | 2 (1 and 2; may be used for stereo or as two separate mono preamplifiers) |
| Gain Selectors (2) | LOW, HIGH or AUTO (rear panel; one for each preamplifier) |
| Frequency Response | 20 Hz to 20 kHz (+/- 0.5 dB) |
| THD | < 0.05% |
| CMRR | > 80 dB (20 Hz to 5 kHz) |
| Residual Noise (below +4 dBu output) | < -85 dB (20 Hz to 20 kHz, 40 dB gain, 150 Ω source) < -70 dB (20 Hz to 20 kHz, 60 dB gain, 150 Ω source) < -70 dB (20 Hz to 15 kHz, 60 dB gain, 150 Ω sources) |
| Power Requirement | 24 Vdc @ 80 mA (120 mA with phantom), Ground-referenced |
| Ambient Operating Environment | 32° F to 131° F (0° C to 55° C) |
Frequently Asked Questions
What does it connect to?
It sends audio over twisted pair to RDL Format-A receivers, distributors and mixers.
Does it provide phantom power?
Yes. Both XLR inputs supply P48 phantom power per IEC 61938: 2013.
How is it powered?
It is powered remotely through the twisted pair cable from another module, a distributor or an RDL power inserter. Draw is 24 Vdc at 80 mA, or 120 mA with phantom.
Can I add another sender on the same cable?
Yes. One single-pair Format-A sender may be chained with the module, as long as each source uses a different pair.
What mounting options are there?
It mounts in RDL WB-1U and WB-2U wall boxes or standard US electrical boxes.
What warranty does it carry?
This product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.
Can Creation Networks help design the system?
Yes. Our team specifies, programs and installs twisted pair microphone and audio systems for commercial projects nationwide. Call (888) 230-3661 for a quote or design review.
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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