On Sat, 01 Apr 2006 18:47:23 +0100, Glenn Richards
wrote:

Stewart Pinkerton wrote:

The sound suddenly went flat and lifeless, almost as if it had been
compressed.
The only thing that was 'compressed' here was your IQ......

Some basic maths for you. Compression at 1:1 means that my IQ would
still be in the mid 130's, same as it's always been.

Yours on the other hand is clearly sub-optimal, as you seem to have
missed a basic point in my post:

It may be suboptimal, but you're admitting that it's about 20 points
ahead of yours, sunshine! :-)

PS Please do not bother posting with "it's all in your mind"...

To which you replied:

BTW, as usual, it's all in your mind [snip]

Perhaps you have missed the basic point that no one gives a flying
fart about your 'instructions'?

BTW, it's all in your mind, as usual.

Mind you, following that logic, perhaps this will work...

Stewart, please do not go and jump off a cliff.

Spoilsport! I love abseiling!

If at first you don't succeed, skydiving is not for you.

Assuming that your amps are capable of driving the speakers without
clipping at your preferred listening level, why should bi-amping be
better than bi-wiring? Electrically, they are *identical*.

LOL!

Now your true lack of knowledge comes into play.

Bi-amping means you have a separate amplifier driving the top (HF) and
bottom (LF) half of each speaker. So for a stereo pair, you have *four*
amplifiers. Count them. Left HF/LF, right HF/LF. Four.

So how is that "electrically identical" to a bi-wired setup, where you
have *two* amplifiers driving the stereo pair?

Pretty obvious to anyone with minimal knowledge of electronics.

The HF/LF is split at the
amplifier, either by using two sets of speaker outputs, or by using a 2
to 4 configuration speaker cable. This may consist of either soldering
two cores into a banana plug, or attaching two cores into the binding post.

This is clearly not "electrically identical" to a bi-amped setup. With
bi-amping, the HF and LF are split at *line level* (technically between
the pre and power amp), with bi-wiring they are split at *speaker level*.

That depends what you mean by 'bi-amping'. In your case, you were
*not* using an active x-over, so the line-level signals going into the
four amps were identical, hence the speaker-level signals coming *out*
of the four amps were identical (assume a central image for the
moment), given only that the amps weren't clipping when only two were
driving the speakers. Therefoire, there is *no* electricval difference
between bi-wiring and your style of what is commonly called 'passive'
bi-amping.

Warning!!!! Do *not* consult 'Squirrel Solutions' if you have a
technical problem!!

Now if you'd said that single and bi-wired setups were electrically
identical, you may have a point, at least from a certain point of view.

No, they *are* electrically different, but only in the region
immediately surrounding the crossover, and only at the -40dB or below
level, depending on the relative impedances of speaker and wire.

Warning!!!! Do *not* consult 'Squirrel Solutions' if you have a
technical problem!!

The fact is though that bi-wiring does make a difference over
single-wiring, but (at least on the equipment I have) bi-amping doesn't.

No, it doesn't. Try it again, when you don't *know* when the bi-wiring
is in place.

If, as you suggest, it was "all in the mind", surely I would have
"heard" a difference between bi-wired and bi-amped? Yet I didn't, and
neither did the friend who was in the room with me at the time. Both of
us heard a difference between single and bi-wiring though.

No, you wouldn't, because they are electrically identical. Of course,
so are single and bi-wiring for all practical purposes (one reason why
several top speaker makers don't even offer the option), but we all
know that you're obsessed with these imaginary cable differences you
keep bleating about - but refuse to put to the test.

--

Stewart Pinkerton | Music is Art - Audio is Engineering

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