Honeybee i used to own the yamaha you have but i sold it and bought the Luxman 550 A II, certainly a huge improvement sonically and in every sense.
Yamaha was powerful but the sound never engaged me as very musical, i was able to have both at home and compare back and for, i also had the Cayin KT88 at that time, certainly the Luxman was that kind of amp that you will live forever forgetting about upgrades.
If you read the harbeth UK forums, many own the combo with the compact 7ES3 and they are very satisfy as I am, not thinking on upgrades for a while, maybe just my cartridge.
regards,
Luxman/harbeth
LFD/harbeth
Naim/harbeth
well known combinations.
good luck.
Yamaha was powerful but the sound never engaged me as very musical, i was able to have both at home and compare back and for, i also had the Cayin KT88 at that time, certainly the Luxman was that kind of amp that you will live forever forgetting about upgrades.
If you read the harbeth UK forums, many own the combo with the compact 7ES3 and they are very satisfy as I am, not thinking on upgrades for a while, maybe just my cartridge.
regards,
Luxman/harbeth
LFD/harbeth
Naim/harbeth
well known combinations.
good luck.