This thread gets better and better! Thank you Charles, and everybody for the ongoing discussion of the sonic distinctions between the EL-34 and directly heated triodes.
It's interesting that the Decware site kind of addresses this in its advertising for the amp I've been considering. His EL-34 amps feature what he calls the "Hazen grid mod." My shallow understanding is that this involves placing a capacitor at a certain value between two particular pins on the EL-34 tube. This is supposed to push the sonic performance of that tube to a much higher level. The ad copy says:
"Taking advantage of the unique qualities of the EL34 this amp comes standard with the Hazen Grid Mod. As a result, the transparency and musicality it has sets a new benchmark for EL34 that exceeds directly heated triode amplifiers at twice the price."
I can't comment on the truthfulness of this claim, but it's interesting that he is addressing the perceived performance gap between the EL-34 and directly heated triodes.
It's interesting that the Decware site kind of addresses this in its advertising for the amp I've been considering. His EL-34 amps feature what he calls the "Hazen grid mod." My shallow understanding is that this involves placing a capacitor at a certain value between two particular pins on the EL-34 tube. This is supposed to push the sonic performance of that tube to a much higher level. The ad copy says:
"Taking advantage of the unique qualities of the EL34 this amp comes standard with the Hazen Grid Mod. As a result, the transparency and musicality it has sets a new benchmark for EL34 that exceeds directly heated triode amplifiers at twice the price."
I can't comment on the truthfulness of this claim, but it's interesting that he is addressing the perceived performance gap between the EL-34 and directly heated triodes.

