AVS Special Member
Join Date: Dec 2007
Location: Southern California
Mentioned: 3 Post(s)
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IMO it would be a waste of time to use a tube amplifier with a Denon receiver as a preamp.
The sound quality will be mainly determined by the Denon and not the tube amplifier, and will not be that good.
If you think it sounds "awesome" now, then why change?
For most people who want to go to tubes, a tube integrated amplifier is the best bet, because good separates are going to cost somewhere close to $10k.
If, by DIY, you mean building an amplifier totally from scratch onto a bare metal chassis, that is quite a challenging undertaking that requires extensive technical knowledge as well as special sheet-metal punches and other tools and skills.
SET amplifiers have such a low power output that only speakers with 100 db per watt sensitivity can be used effectively, such as Klipschorns.