No it makes No sence a fixed Mcintosh preamp is much better quality then any piece of junk for $750 please remember when you buy anything new roughly 25% or less actually goes into the item the rest a R&D overhead and markup.
that piece you have would sell for $3-4K new it may cost $5-600 to fix
send it in and get a written estimate . In the mean time with Khorns
you can run any thing on them while you are waiting they are very efficient.
I was at a demonstration where a Paul Klipsch hooked up a 9 v pocket radio
up to a K horn around 1980 and was very loud at maybe 1 watt.grest Classic a Loudspeaker.
that piece you have would sell for $3-4K new it may cost $5-600 to fix
send it in and get a written estimate . In the mean time with Khorns
you can run any thing on them while you are waiting they are very efficient.
I was at a demonstration where a Paul Klipsch hooked up a 9 v pocket radio
up to a K horn around 1980 and was very loud at maybe 1 watt.grest Classic a Loudspeaker.