Is there such a thing as too much power?

Alexberger:  I neglected to add that the speakers which recently replaced Magnepan 3.7s are Robert Bastanis Mandalla Atlas with the powered 18" woofers.  Some have said they test at 100 or 101dB efficiency.  I can't verify that though.

Stupid thread, the answer is NO.   Next!!

So what is it burns out speakers then? 
Don't quit your day job.

The 6B4G is a 2A3 with a different base.

A minor point, but for the record it's probably worth noting that the 6B4G is a 6A3 with a different base.  Both of those tubes, in turn, are electrically similar to the 2A3 except for their filament voltages and currents, which are very different (6.3 volts/1 amp in the case of the 6B4G and 6A3; 2.5 volts/2.5 amps in the case of the 2A3).

Regards,
-- Al

Simple fact is that if you can get a more powerful amp to sound as good as a lower powered amp through the entire spectrum more power is better. Problem is that many higher powered amps dont sound as good as their lowered powered alternatives. This seems especially true of S.S. amplifiers. Part of this must be an issue of circuit complexity.

What irritates me more than speaker efficiency is the issue of low impedance speakers. To me there is no reason for the existence of low impedance speakers!