McIntosh C22 needs restoration

[M3M]

McIntosh C22 Commemorative Edition needs restoration. The sound has become very boomy for both speakers & headset. I don't have the ability to restore it. I have no idea how to value it if I try to sell. Any suggestions?

 

[TLS Guy]

McIntosh C22 Commemorative Edition needs restoration. The sound has become very boomy for both speakers & headset. I don't have the ability to restore it. I have no idea how to value it if I try to sell. Any suggestions?

That is a high end tube preamp with a list price of $6000.00. So I would send it to McIntosh for service. In general tube gear gives more trouble than solid state gear and has no advantage over solid state, in fact the reverse.