Let’s say there’s a separate psu and a preamp circuit.
What’s the ideal configuration and why?
Would it be ideal to locate the rectification and some smoothing on the psu side, while keeping the remainder of the power supply such as regulation and additional smoothing on the preamp side?
If transformer noise is the bad guy, why not place simply the transformer in a separate enclosure?
I’m told this is bad practice; but I’ve seen it done in some well regarded examples such as the amb a10.
What are the issues involved?
What’s the ideal configuration and why?
Would it be ideal to locate the rectification and some smoothing on the psu side, while keeping the remainder of the power supply such as regulation and additional smoothing on the preamp side?
If transformer noise is the bad guy, why not place simply the transformer in a separate enclosure?
I’m told this is bad practice; but I’ve seen it done in some well regarded examples such as the amb a10.
What are the issues involved?
Splitting the PSU and the pre-amp in two is not bad practice as long as you keep the regulator and some of the power line decoupling with the regulator and pre-amp. A disadvantage is evidently one more "box", which is often not appreciated by spouses, and with careful design it is normally possible to use the same cabinet.
However, with your location delivery costs may be high.
However, with your location delivery costs may be high.
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