It is only 60W at full output but draws 300VA all the time!
I wouldn't want to be near it in summer. Just think about the heat from 5 of them for surround-sound.
Maybe its tubes are lighted just for show and it actually has a little chip amp inside. :lol:
Yeah, I made a tube amp years and years ago. I didn't like the sound because its output transformer provided poor damping for the speakers at low frequencies and I couldn't keep the tubes balanced as they aged.
It's a controversial issue - personally I would only recommend valve amps for lead guitar use, where you are looking for the 'soft' distortion an overdriven valve amp provides. For anything else?, I would use transistors (either bipolar or FET) everytime.
Unfortunately, valves have become 'cool' in the music scene, with manufacturers releasing highly priced preamps with a valve stuck on the outside - a number of these don't even have the valve connected (apart from a heater supply, so it lights up!).
The usual drivers are the ECC81/82/83 series (with the lower noise 83 usually reserved for preamps) - I don't think there is any such thing as a EL12 :lol:
As you say, it's the price of transformers which makes them expensive, but even the valves are now stupid prices! - and you can't even find decent quality ones.
If you've got plenty of EL34's you ought to try selling some on Ebay, there are idiots who wil pay serious money for them!.