Relationship of amplifier sound to transformer quality?

First of all, hope you are all well. Old thread but a question came up I know you guys can answer. Jim Stuart of Meridian made a comment years ago when asked about the 'lean' nature of the old Meridian 105 monos. He said what they need is a bigger transformer. The amp and psu are in separate chassis. I just happen to have an extra pair of psu. Could I connect them in parallel to double their rating? It would be a simple matter of splicing the umbilicals of the psu's and then into the amp as usual. The caps are a pair of 6800uf in each supply so I would up one set to 10,000uf and delete the other? TIA

Transformers  are the heart of any amp should be the best.

Jim Stuart of Meridian made a comment years ago when asked about the 'lean' nature of the old Meridian 105 monos. He said what they need is a bigger transformer. The amp and psu are in separate chassis. I just happen to have an extra pair of psu. Could I connect them in parallel to double their rating?

Yes, it's a good idea!

It would be a simple matter of splicing the umbilicals of the psu's and then into the amp as usual.

If you can find the plug and socket, my suggestion is make a "Y" connector so no modification to the original power supplies.

The caps are a pair of 6800uf in each supply so I would up one set to 10,000uf and delete the other?

My suggestion is add a power diode in series to each + and - outputs. Again, no need to modify the original power supplies.

https://www.kepcopower.com/support/diodes.htm

Do you mean at the outputs of the amp/speaker connections? What value would be suitable?

I should point out I'm not interested in redundant operation. I want increased power/current/va rating