Tube Monoblocks for JM Labs Electra 927 Be


How much power do I need to run these in a smallish room? Currently I am using a MF A308, about 150w/ch and the volume never gets above 1/4. They are rated at 90db sensitivity, but I have no idea if they have any nasty ranges with low impedence and bad phase shift, i.e., I have seen no curves.

What amps might be good? I have heared that 308b amps are wonderful, but replacing these tubes is very costly. I don't want to by alot more power I dont need, since tube amps cost more per watt. But I want that dimesionality and soundstage. I would probably keeo the A308 for now and use it as a preamp.
dolifant

Showing 1 response by aball

As an Electra 926 owner, I can tell you that my 45W CJ tube amp in my 14x15 room is just fine. From what I saw in Hifi-choice, the impedance dips to 3.5 ohms at 50 Hz or so but the phase isn't bad and the senstivity is indeed higher than average for both 926 and 927s.

However, I would say that 30W is a minimum and even then, you will need to keep the volume somewhat under control.

You only want monoblocks? That will limit your choices significantly but if so, the Cary six packs may be plenty of power and sound great. Arthur