The Rogers do not outright claim power ratings so for those who really need to know if they have enough poop......?
Do we extrapolate between their numbers, expect at least the minimum noted or do they run near the max values?
"25 Watt output, 50 Watts peak"
If you are referring to the Rogers 65v here is the Stereophile measurements comment:
An EL34 tube operated as a single-ended
triode is not going to be able to deliver much power, and fig.5 indicates that, with our usual definition of clipping—ie, when the percentage of THD+noise reaches
1%—the Rogers clipped at just
270mW into
8 ohms. Relaxing the definition to
3% allowed the 65V-1 in
triode mode with EL34s to deliver
2.275W into
8 ohms and into
4 ohms (fig.6), the amplifier clipped at
1.6W (1% THD+N),
4.15W (3%), and 8W (10%). More power was available in
Ultralinear mode, both with EL34s (fig.7) and KT88s (fig.
, where a THD+N of
3% was reached at a respective
5.5W and
6W into 8 ohms. But the Rogers 65V-1 is undoubtedly a
low-power, high-distortion design. Worried that our review sample may have been faulty, I checked the measurements that Rogers's Roger Gibboni had included; I am confident that my measurements characterize this unit's behavior.
