Toft ATB power supply connectors

GroupDIY Audio Forum

Help Support GroupDIY Audio Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

NOON

Well-known member
Joined
Nov 26, 2014
Messages
304
Location
Melbourne, Australia
1000007586.jpg



Does anyone know what the connectors are called that Toft used for their ATB mixer power supply cable?
I have two people who have the mixer and psu but no cables and it seems spares are not readily available at a reasonable price, at least here in Australia.
I can go trawling through the connector section of Mouser etc but I'm hoping someone can save me some time by at least narrowing down the brand and series.

1000007584.jpg
 
Does anyone at least recognise that Z with wings logo?
I was also wondering about that. There is an ATB here locally. Next time I'm there (whenever that is...lol) I'll look at the cable.

Bri

PS....how many people here caught the "secret meaning" of the ATB moniker?
 
They've offered to make one up for $180usd + shipping to Australia. Still trying to get an answer from them on the connector.
For a fraction of that money, you can have a few of these connectors sent to you. They also have 5pin versions there, if they don't fit directly, replace the existing sockets with these or similar.

https://www.voelkner.de/products/68...m=CPC&utm_campaign=D733422&utm_content=intern

Screenshot 2024-02-14 at 10-36-34 2705573_datasheet_openformat - DA_453555-Rundsteckverbinder-...png
Does anyone at least recognise that Z with wings logo?
My AI search didn't turn up anything, perhaps from the aviation industry?

Also interesting:

https://www.pollin.de/p/rundsteckve...f7Yk5vakk0E1ye_12huoYNBRljmxUnykaAs9gEALw_wcB
 
Last edited:
Looks like a GX Connector, they come with various pin counts and diameters 12, 16, 20..., the number refers to the metric thread.
 
Thanks everyone. I'm familiar with the connectors linked above in their smaller sizes, they're commonly sold here as aviation microphone connectors. GX20 or 25 looks very similar but they don't have the additional keying notches.

If I don't come up with an exact match I should be able to replace the panel mount connectors with GX. Just making a cable with the proper connectors will be much easier though, can do that in the workshop instead of having to take tools to the desks.
 
Reply from PMI. "One end is the Zhancent Industrial Aviation Plug: P16F-5A. The other end is 19M-6A, but I’m not sure of the brand."
Haven't had time to research them yet, but here for future reference.
 
Yep , thats whats known as an aviation plug on the back of the mixer , they can be found on ebay quite cheaply , but there is two sizes , normal and miniature with the various pinout arrangements .

Whats on the back of the power supply looks similar but with a specific key, I havent seen that kind on anything before .

thats it there ,
https://www.ebay.ie/itm/123982113162
 
Hi, I have an ATB24 but missing the power supply. Thanks for all of the great info on the connectors for power! I am trying to Frankenstein a power supply to use for my board. Soundcraft CPS-150 or 200, or DDA 2860 power supply.

The only thing I could find in a Toft user manual was: “The D.C power connections are as follows:

Pin 1 +17v
Pin 2 Chassis Ground
Pin 3 Electronics Ground
Pin 4 +48V
Pin 5 -17V

Does anyone know the Amps for the +-17v wires and the 48v wire?

Since I am trying to build a connector on an existing power supply, I’d sure I need the amps to match or be greater. Am I wrong on that?

Also, some of the Toft documentation shows 5 pin male connector on the board, and some are 6 pin. I’m assuming that might have been a problem with part supply with the factory and some have 5 pins while others have 6. Also assume that one of the pins is a dummy. Maybe I’ll open up the board and add a picture here.

Other question for those who rebuilt a cable for their ATBPS; what cable did you use?? And recommendations on a supplier?
 
Yeah, I opened it up and the center pin is empty. This confirms my assumption about the different connectors for the cable between the power unit and the board. The power unit has a 5 pin and board has a 6 pin with nothing connected to the center pin. Also think they might be different sizes. If you are rebuilding a cable or creating a new power source, you could theoretically use 5 pin on both. You’d need new male/female connections for both sides. With female hard connection on power out, and male hard connection for power in on the board. Then have your cable have male/female connections.

I also found the power connection for the non-existent digital I/O, they someone called a “radio antenna” that could attract noise into your signal. I plan on cutting this out myself, to avoid any potential problems.

Still unsure of amperage I should be searching for in my Frankenstein power supply. Hoping to build something cheaper than Blue Dog custom build.
 

Attachments

  • IMG_7463.jpeg
    IMG_7463.jpeg
    735.3 KB · Views: 0
  • IMG_7459.jpeg
    IMG_7459.jpeg
    185.1 KB · Views: 0
  • IMG_7453.jpeg
    IMG_7453.jpeg
    1.4 MB · Views: 0
  • IMG_7465.jpeg
    IMG_7465.jpeg
    1.9 MB · Views: 0
  • IMG_7469.jpeg
    IMG_7469.jpeg
    1.5 MB · Views: 0
I've made a cable and successfully tested the mixer. I ended up opening the mixer to trace out the pin connections, the wiring diagram and the names of the connector types I used is attached. I was able to get both connectors for a reasonable price on ebay, although I ended up buying a few similar ones just in case. For cable I just used 7 core 'trailer cable' and doubled the wires on the +/-17V pins so there's lots of extra copper for main rails and ground. It's low impedance so doesn't need shielding.

I couldn't see any specs for current, but as a rough rule of thumb for mixers I'll usually allow 10mA per channel for phantom and 100mA per rail per channel for the main +/- then add some headroom. So for a 24 channel desk this would be at least 240mA at 48V and 2.4A per rail, I'd probably double them to 500mA and 5A just to be safe. That's being very generous, but as long as they're regulated supplies it won't be a problem. You don't know how much the master sections, metering etc is drawing hence being generous. The Toft is a chip based desk so won't be too bad, if it was discrete or had all channels with backlit VUs I'd allow a bit more.
 

Attachments

  • Toft ATB MIxer power cable.pdf
    16.6 MB · Views: 0
Back
Top