RDL RU-TPS4A – Format-A Sender/Distributor, 3 In 4 Out is backordered and will ship as soon as it is back in stock.
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What is the RDL RU-TPS4A?
The RDL RU-TPS4A is a Format-A twisted pair sender and distributor that puts three balanced line-level sources onto four RJ45 outputs. Front-panel gain trimmers and dual-LED VU meters set the level of each Format-A audio pair. The module powers every connected receiver and mounts three per rack unit in the MAX RACK-UP chassis.
How does it work?

Three line-level sources connect to the RU-TPS4A on a +4 dBu balanced detachable terminal block. Studio-quality buffer amplifiers feed the three pairs of the four rear-panel RJ45 OUTPUT jacks at the correct operating level. A GAIN trimmer next to each VU meter adjusts its input from -4 dB to +18 dB. The module runs from 24 Vdc through either power jack or the terminal block, and that power is fed to all modules on the output jacks. Each OUTPUT jack is protected by an automatically resetting fuse, with a rear LED for each jack to help find wiring faults. For more than four outputs, mount one or more RDL RU-TPDA distributors beside it and link power with the included jumper cable. Format-A receivers such as the RDL D-TPR1A or D-TPR3A recover the audio at each location. Rack mounting uses RDL RACK-UP accessories such as the RDL RC-1UR.
What are the key features?
- Three-source sender — Balanced line inputs feed Format-A pairs A, B and C.
- Four outputs — Drives up to four Format-A receivers.
- Gain and metering — Front-panel trimmers and dual-LED VU meters for each pair.
- Powers receivers — All connected receivers are powered from the module.
- Protected outputs — Self-resetting fuse and LED on each output jack.
- Expandable — Power bus links adjacent RU-TPDA distributors.
Where is it typically used?
- Conference room
- Training room
- House of worship
- Auditorium
- Government space
- Multi-purpose room
Technical Specifications
| Model | RU-TPS4A |
| Inputs (3) | 20 kΩ balanced |
| Input Connection | Detachable Terminal Block |
| Format-A Signal Pairs Used (3) | A, B, C |
| Gain | -4 dB to +18 dB Adjustable, multi-turn front-panel trimmer |
| Outputs (4) | RDL TP Format-A |
| Output Connection | RJ45 |
| Frequency Response | 10 Hz to 50 kHz (± 0.1 dB) |
| THD+N | < 0.005% |
| Noise below +4 dBu | < 90 dB |
| Crosstalk | < 90 dB (1 kHz); < 75 dB (20 Hz to 20 kHz) |
| Headroom above +4 dBu | > 18 dB |
| CMRR | > 80 dB (50 Hz to 150 Hz) |
| Indicators (11) | Power In (1); Power Out (4); 3 Dual-LED VU Meters (6) |
| Power Connections (3) | Power Jack (2); Detachable Terminal Block |
| Ambient Operating Environment | 32° F to 131° F (0° C to 55° C) |
| Power Requirement | 24 Vdc @ 120 mA plus connected loads |
| Dimensions | 5.8" (15 cm) W; 1.7" (4.3 cm) H; 3.25" (8.25 cm) D |
Frequently Asked Questions
What inputs does it accept?
Three balanced line-level sources at +4 dBu on a detachable terminal block.
How many receivers can it drive?
Four directly; add RU-TPDA distributors for more outputs.
Does it power the receivers?
Yes. All connected receivers are powered from the module.
What power does it need?
24 Vdc at 120 mA plus connected loads.
How is it mounted?
It uses the MAX RACK-UP chassis, which fits three modules in one rack unit.
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 audio distribution 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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