Naim and Avondale PSU connections

[cchean]

Pardon my ignorance, but got me an Avondale SPX power supply which has two locking DIN females on the back, a 4-pin and a 5-pin. The 5-pin is the 240° locking type and I believe should be connected to the preamp's (NAC72) last DIN to the right.

What is the 4-pin used for then? I was searching on the forum if there was any thread discussing all different naim cables and connectors, if there is such a tutorial, could someone point me in the right direction? Thanks.

 

[Tony Lockhart]

To the power amp, I think.

Edit to add, this might help, scroll down to the connections guide for 202, hicap, naps, 200:

https://www.naimaudio.com/sites/default/files/products/downloads/files/Connection Guide Amplification Rev 1J.pdf

 

[cchean]

To the power amp, I think.

Edit to add, this might help, scroll down to the connections guide for 202, hicap, naps, 200:

https://www.naimaudio.com/sites/default/files/products/downloads/files/Connection Guide Amplification Rev 1J.pdf

Thanks for the link. Does it apply to older Chrome bumper and Olive series?

 

[Tony Lockhart]

Thanks for the link. Does it apply to older Chrome bumper and Olive series?

Yes.

Maybe do a Google image search for your specific amps, see what comes up.

 

[matfff]

All in here;
https://www.avoptions.com/downloads/manuals/Naim-Audio-Owners-Manual-1989.pdf

 

[cchean]

All in here;
https://www.avoptions.com/downloads/manuals/Naim-Audio-Owners-Manual-1989.pdf

Thanks for the link! Some info is missing though, as some of the cables are mentioned as "AS SUPPLIED". Well, will do some further research...

 

[Tony Lockhart]

You could do worse than contact someone like https://www.designacable.com/audio-visual/naim-cables.html

if you need a cable or two. They’ll guide you. Or maybe a local-to-you fishee could help.

 

[misterc6]

I'm not familiar with the SPX which I believe was an early Avondale power supply. It would be helpful if you could take some internal photos with close-ups of the wiring to the sockets.

For completeness, the diagram below shows the difference between Naim and Avondale methods of connecting the later TPX power supply. Note that the Naim method uses standard Naim SNAICs whilst the Avondale method uses different cables. A five-pin cable, with only three wires carrying +24v, +24V and Earth/Ground from the TPX to the preamp and a four-pin cable, with only three wires carrying the left and right signals and earth/ground from the preamp to the power amp.