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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: RE: Its not my requirements. posted by morricab on September 10, 2021 at 15:37:16:
I tend to agree, providing the power
supply can quickly supply the peak's
requirements without causing the amp
to go into clipping or time-delay
distortions.The "extra dynamics" that people note
when pushing a SET with an ordinary
power supply is current sag and LAG.
This causes the speaker woofer cone to misbehave,
causing the effect by pushing and pulling the woofer cone
as an AFTER EFFECT (time-lagged) effect of
the power supply sagging and restoring..This effect is initially started by a musical
low-frequency pulse, but it has departed
from following the music-- it departs from the music--
it's not following the music ON TIME.
The time sequence is LATE and distorted. The dynamic effect
is fake......The effect is eliminated by giving the SE amp low-DCR,
fast attack and quick restore power, with minimal timing
issues and minimal voltage & current sag when pulsed by
a low frequency "hit". The more repetitive these pulses
are, the more the conventional power supply lags behind the
music (in SE operation).. in many aspects, pushing and pulling
the woofer cone, when it shouldn't.Power supplies for SE amps must be low DCR, super fast, and
must be much larger than the amp is calculated to need....,
for instance, a power supply for a one-watt amp should be
the same electrical size as one for a 75 watt push/pull amp.At one audio show, a visitor asked me to take the front grille
off of my speakers so he could watch the woofer cones.He said, "if I see that cone move more than 1/32nd
inch, I'm outta here! And I expect great bass."He later said, "now that amp has a great power
supply".Next year, he asked if that pair of amps was still
around-- he wanted them.The man would go all over the Hotel, listening to music and
looking at woofer cones!-Dennis-
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Follow Ups
- RE: Its not my requirements. - tube wrangler 10/2/2103:11:46 10/2/21 (0)
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