Thomann NB 4.0

Audio Transmitter Balun

4 RCA signals transferrable via network cable over up to 670 meters
No transmition possible using a hub or the like
Operatable only with 2 devices
No power supply needed
Incl. mounting angle
Dimensions: 92 x 70 x 25 mm

30-Day Money-Back Guarantee

3-Year Thomann Warranty

Available since December 2010

Item number 252772

Sales Unit 1 piece(s)

Design Box

Distribution Type 1in4

RJ45 connection female

Number of RJ45 connections 1

Signal Connection RCA female

Number of Signal Connectors 4

Connector in RJ45 female

Connection out RCA female

£20.20

Including VAT; Excluding £10 shipping

Delivery approx. between Wednesday, 18.12. and Thursday, 19.12.

Sales Rank

in CAT Splitters & Adaptors

24 Customer ratings

5 16 Customers 4 5 Customers 3 2 Customers 2 1 Customer 1 0 Customers

4.5 / 5

quality

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13 Reviews

Handy little boxes

NyquistAudio 24.09.2018

Nice sturdy build quality. These were a great solution for me. I'm using these to get extra returns down a single cat5 run for 2 stereo IEMs - going from a console into a Samson S-phone headphone amp to drive Fischer beltpacks in stereo. Unbalanced input on the headphone amp, but these boxes give me a balanced run, and eliminated problems I had with lighting dimmer buzz.

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An eye opener

janusM 13.08.2023

This quad ballun really does the job. I used it with 25m of cat6 cable. But when testing (still coiled) I picked up some hum. So I modified it by soldering a ground wire on the casing of the internal RJ45 female connector in on of the 2 boxes. Perfect sound now !
I will also solder myself some balanced cinch-XLR cables (pin 1 unconnected), so that I can send microphone signals through this wiring.

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saved my life

Abdulla J. 17.07.2020

i used it for long distance (120m) installation audio transfer and it does what it claims nicely.

will buy again.

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Not Compatible with the the sssnakeCat Snake 3M series

SEGFAULT 25.11.2024

If you are in the position I was in, wondering how to connect a tape deck "all the way over there" to a mixer "over here" then you may have wondered if you can connect this to a the sssnakeCat Snake 3MC
the sssnake Cat Snake 3MC to get RCA to XLR via a balanced CAT cable.

If you are like me you may have figured out friom the manuals that to have a chance of working you need to open the unit and swap around two connections so the pinouts match.

I am here to tell you that doesn't work. The impedance mismatch between the transformer and the input of your XLR interface is too high for a passive system to overcome. The resulting audio is thin and tinny.

If you buy a second one and use it as intended it works great (although a little pricy for what it is)

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Thomann NB 4.0

Audio Transmitter Balun

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13 Reviews

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Thomann NB 4.0

Audio Transmitter Balun

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