[Vintage-Audio] H.H. Scott Rocks With Paradigm Monitor 9!

Tue Feb 4 22:52:04 2003

And Duane, back in my days of intense listening for
equipment and design evaluations I found that the
conclusion was not always correct until one could
repeat a comparison another day and reach the very
same conclusion.  We are talking very, very subtle
differences in performance with live unamplified
music as a standard of comparison.

When a person really learns how to listen it may
come as a shock that certain details were previously
ignored.  One questions onseself... how could I have
missed that before?

A day without music is.....  pretty empty.
Bob McKee

----- Original Message -----
From: "Duane Fischer, W8DBF" <[email protected]>
To: <[email protected]>
Sent: Tuesday, February 04, 2003 9:02 PM
Subject: Re: [Vintage-Audio] H.H. Scott Rocks With Paradigm
Monitor 9!

> Phil,
>
> 1. I am totally blind. I know how to listen far better than
a sighted person. I
> hear what you ignore. Vision accounts for 92% of what
sighted people learn and
> sense. It overrides the input of the other senses. If you
remove the visual
> input, it is quite surprising what one suddenly becomes
aware of. It was there
> all along, but your dependence on vision caused it to be
ignored, or filtered
> out.
>
> Ever be in a room, knowing you were alone, and suddenly
'sense' the presence of
> somebody watching you? You did not see them. You did not
hear them. How did you
> know?
>
> Really quite simple. The human ear can detect a very tiny
change in air
> pressure. With your vision disabled, in this case looking
forward and the source
> is behind you, the vision was not able to override the data
from the ears being
> fed to the brain. Thus your brain became aware of the tiny
change in air
> pressure the presence of another person caused. When you
turned to look, sure
> enough, somebody was standing there observing you.
>
> This works for detecting objects, when the area is quiet. Of
course, the object
> must be reasonable large so as to effect a change in air
movement.
>
> I have done audio recording for forty years. I have trained
myself to listen.
> While it is true people hear or see what they expect to hear
or see, I use an
> empirical approach to eliminate such psychological bias.
>
> I fed the B&W 630 with 100 watts continuous RMS and used a
DAT as the source. I
> listened to a specific selection I was familiar with. Then I
changed to bi-wired
> and listened again. I did this several times to be sure of
what I heard. I tried
> it with different speakers, to see if there was a difference
there also. There
> was, but it did vary among manufacturers and models of the
same manufacturer.
>
> I will do some in depth research into what the thinking
behind bi-wiring is and
> report back to the list. It should prove to be interesting
one way or the other.
>
>
> Duane W8DBF
>
>
>
>
>
> ----------
> From: Phil Lefever <[email protected]>
> To: [email protected]
> Subject: Re: [Vintage-Audio] H.H. Scott Rocks With Paradigm
Monitor 9!
> Date: Tuesday, February 04, 2003 7:32 PM
>
>
> >The bi-wiring does make an audible difference on the high
end. By running the
> >power from the amplifier in parallel to the top tweeter
only and the
> >bottom mid
> >range and woofer speakers, more power gets to the tweeter.
>
> Color me skeptical I guess. Provided you are using
reasonably low resistance
> wires adding a set in parallel will make an EXTREMELY small
difference in
> power transfer, well below human audibility.
>
> If we analyze the circuit assuming a speaker impedance of 6
ohms and a total
> cable resistance of .4 ohms we would normally see a loss of
only 6.25% at
> the speaker. If we run another identical cable in parallel
now the loss
> drops to 3.2% an improvement of 3% or about .1db. While I
will never tell
> anyone they can't hear something, I seriously doubt that
humans can detect
> a small change like this statistically in a double blind
test.
>
> A change in power transfer is therefore a very unlikely
player in any
> advantage of bi-wiring. There could be a number of other
possibilities
> such as capacitance and inductance etc as an AC signal is
much more complex
> then simple DC. I still doubt these things as audio
frequencies are very
> low in the spectrum. I am still very open for more
discussion on this
> though!
>
> >I have listened to several system wired both ways and I can
tell the
> >difference.
>
> Did in any of these comparisons you ever not know the system
was bi-wired?
> Again not saying it makes no difference to you audibly but
as humans we
> often perceive a difference just because we are expecting
one. Of course
> even if it is a psychological difference it is still valid
as the listening
> experience is psychoacoustical and we can never separate our
mind from the
> mix. If waxing an amplifier makes it sound better buy a big
can of wax and
> enjoy your music! Even if the difference can't be measured
it is still a valid
> difference to the guy with the wax ;)
>
> >Now I am a serious listener Phil and I hear what many
others gloss
> >over.
>
> I consider myself to have excellent hearing as well. I play
Cello and Guitar
> and I can still hear the 15KHz flyback transformers in TVs.
I laugh at people
> that tell me I can hear something (how can they know they
don't have my ears!).
> My issue is my training in electronics and recording
technology that tells me
> differently. What we perceive can be altered easily.
>
> Good discussion in any case!
>
> 73 and enjoy the Scott/Paradigm combo bi-wired or not!
>
> Phil
>
>
> ------------------------------------------------------------
--------
> Phil Lefever - Burnsville, MN
> Amateur Radio Callsign - KB0NES EN34jt
> C8-SP XT-10 C102 80WV
> MNAA - Minnesota Amateur Astronomers
>
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