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QSXM2, separate PSU ?

Started by Goofy, October 15, 2017, 07:11:31 PM

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Goofy

QSXM2 is finished since a few month now. Head amp with MAT02/03
Wiring with Carda Litz shielded
Tranformer is C core
PSU is SSR03
Sound is very good

In MC mode I have just a very very small hum but still present...
Can I put, without downsides, only the power transformer in a separate enclosure ?
It seems that it is not a very common solution

We usually see a raw DC PSU (transformer, rectifier, capacitors) in the separate enclosure, regulators and phono board in the main enclosure.



peranders

It might help with an external transformer but check first if you don't have any ground loops.
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff

Goofy

#2
Ground loop inside the phono ?

I have only
inputs left and right
Outputs left and right
PSU: +18 0 -18
and a wire to chassis

peranders

What happens if you remove the turntable and short the inputs? Still hum?
/Per-Anders Sjöström, owner of this forum

Homepage with my DIY hifi stuff