Warm Audio WA412 Mod
« on: June 24, 2020, 03:37:39 PM »

I have an Warm Audio WA-412 and think about changing the:
Input transfo, Output transfo and DOA to CAPI ones.

What are the things I need to be checking before changing those components?


Re: Warm Audio WA412 Mod
« Reply #1 on: June 24, 2020, 04:37:08 PM »
I would first change the DOAs and check if it makes a difference.
I think the altran xfr make a good job.
Sure the Capi transformer are top notch, but before you spend a lot of money for new ones, I would first try the DOAs.

I don’t know the circuit from the warm audio, but by changing the input Trafos you maybe need a new Zobel network.
Also the pinout from the transformers could be a bit different to the Capi ones.


Re: Warm Audio WA412 Mod
« Reply #2 on: June 25, 2020, 03:02:17 PM »

Thanks for the reply!
I ordered new DOA first then.

I see they’re using JH capacitors.
Was maybe thinking swapping them out for Nichicon.

What do you recommand?


Re: Warm Audio WA412 Mod
« Reply #3 on: June 25, 2020, 04:05:22 PM »
Why want you change them ?
It makes no sense in my opinion.

Re: Warm Audio WA412 Mod
« Reply #4 on: July 06, 2020, 12:05:22 AM »
Genuinely curious if this unit needs mods except for the op amps. Anyone have some insight?


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