Home Speaker Asylum

General speaker questions for audio and home theater.

RE: Very interesting comments

Could be! There is something there for sure.

I'd have to look at the values and currents
to know.

It's easy to drive lots of plate current from
a low impedance driver into a power tube's grid.

The problem is sensitivity to small signal change,
which allows music its thrills and surprises.

Which are usually recorded, but not often played
back as they really are.

Enter high impedance, high gain circuits which can
really get up and dance with musical change. Some
comments are "this thing is alive!", "the music just
seems to flow", etc.

The trick to negotiating the high impedance world is to
avoid overloading the high impedance source-- so it can
operate unfettered. Once you've heard this, you're not
going to like low-impedance, microdynamically stunted,
high current sound. It just isn't as much fun! Oh yes--
One can also get real bass and superb macrodynamics.

High impedance circuits not only require very light loading,
they also demand very fast power supplies with extremely
fast current delivery.

It's not that a large amount of current has to be
dumped-- as in low impedance circuitry. It is that VERY FAST
delivery of what little current IS needed must occur on-time
or the high impedance circuit will quickly starve for current
even if there is plenty of current source available. Current
must arrive in time with the musical pulse or the high
impedance circuit will get overloaded, and will not provide
the required drive.

I realize that this is not conventional thinking, but once
you've heard it, you're done with anything else.

-Dennis-






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