Looks like an nc400 old module(red caps) with a smps 600 power module. Only one nc400 module, I think you get a mono ampAll good here? Bought this used and I don't really know what I'm looking at
Looks like an nc400 old module(red caps) with a smps 600 power module. Only one nc400 module, I think you get a mono ampAll good here? Bought this used and I don't really know what I'm looking at
All good here? Bought this used and I don't really know what I'm looking at
Looks like an nc400 old module(red caps) with a smps 600 power module. Only one nc400 module, I think you get a mono amp
The speaker output leads are pretty bad, forming an enormous loop antenna.
Can you simplify this for me
How big of an issue is it?
The cables are Bertram proxima 2 silver if that matters
I can try. Bruno (the designer) has been pretty clear about how the output wires should be twisted together (just like the mains power wires in your amp) pretty tightly (even to the degree that they should not exit the output connectors in opposite directions) in order not to form an antenna that feeds into the feedback circuit.
Hard to say without measuring.
All that matters is sufficient cross section (and the twisting). Those cables don't look very thick - what is the point of a non-circular cross section?
Can you simplify this for me
How big of an issue is it?
And yes, I bought a pair of course
The cables are Bertram proxima 2 silver if that matters
Thanks, most of these terms are new to me. The first time looked inside an amp was yesterday! Do you mean that the flat, silver looking cables should be twisted together?
The issue would be some kind of hum or interference?
Can it be fixed by twisting the cables?
Yes, except you would be better off with normal, round copper cables
You might be OK, but it is definitely against the recommendations of the designer.
Thanks, is the XLR not being connected and grounded something that could be fixed easily?Looks like some sort of FM/VHF antenna wire is used towards the binding posts, pretty thin at that:
View attachment 41248
Also, seems the XLR connector is only half-connected (red) and possibly not even properly grounded (yellow).
View attachment 41250
Perhaps a more knowledgeable Hypexpert can comment on this.
This is the schematic approach for the DIY Hypex nCore NC400, notice the twisting as @Julf mentioned
View attachment 41255
Thanks, is the XLR not being connected and grounded something that could be fixed easily?
I've asked the seller about these things, hopefully I will know more soon including what the silvery flat cable is. I hope to be able to go ahead with the deal and fix any issues.
Hopefully you don't get any flowery BS about how the silver cable is somehow better...
But you're saying it's worse than a copper one even?
The material is OK (but not better either), the shape and thickness/gauge are the issues (besides the twisting).
So good to know. Is it only the flat silver one that has this problem?
Are the RCA/XLR connectors on this amp soldered directly into the PCB? It seems that way to me :/I have the new NAD M22 Version 2. it's a custom NC400 board/layout made exclusively for NAD using NC500 output. It's an incredible amp.
View attachment 25100