I am hankering after a ST-70 valve power amp and want to build one of Bob's kits.
I will need some sort of preamp as I use phono and one other source (Squeezebox).
Could I fit one of Roy's line amp pcbs into my 12" by 12" PH15 chassis and power it from the psu without compromising the
phono stage sound quality?
Alternatively could I install a passive preamp? I don't want tone controls, just a volume control and source selector.
Any thoughts on this?