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Discombobularity

72.224.232.198

Posted on April 16, 2023 at 08:53:01
Posts: 1253
Location: Maine
Joined: August 16, 2011
Hi,
I have an old Listener magazine from July/August 2001.In an article by Dr.Harvey(Gizmo)Rosenberg stated this word (discombobularity) in one of his articles.He explained that it was a mis- matching of different types of amplification used in bi-amping. It's like using a vacuum tube amp for your high end and a class D amp for your low, or sub woofer, like I do. He claimed there was some sort of minute mis-timing that led to listeners fatigue. Does a discombobularity exsist?, I asked the late Art Dudley,then the head man at Listener and he wrote me a lengthy e-mail, which I wanted to save and lost.I'm unsure of the answer he gave me as I could only skim thru it before I lost it, my computer shit the bed.
Harvey Rosenberg passed away some 20 years or so now. I was kind of shocked when Art Dudley took the time to write me such a note. I must have struck some nerve?....Have any of you ever wondered about this phenomena? Take care....Mark Korda

 

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I would think matched input sensitivity would be more important., posted on April 16, 2023 at 09:46:50
oldmkvi
Audiophile

Posts: 10581
Joined: April 12, 2002
I used 2 identical amps when I tried Bi-amping, and I liked it.

 

That approach is favored by others, posted on April 16, 2023 at 09:58:43
E-Stat
Audiophile

Posts: 37580
Joined: May 12, 2000
Contributor
  Since:
April 5, 2002
I would think matched input sensitivity would be more important.

Attenuators can address that, but in terms of coherence...

I used 2 identical amps when I tried Bi-amping, and I liked it.

Report here.

"The main concept presented in the system is that using the same amplifier technology for the whole audio range offers superior integration between the frequency ranges."

 

Yes, that's how I've done it as well...., posted on April 16, 2023 at 10:41:57
Ivan303
Audiophile

Posts: 48887
Location: Cadiere d'azur FRANCE - Santa Fe, NM
Joined: February 26, 2001
excepting sub-woofer frequencies, but that's another issue.


First they came for the dumb-asses
And I did not speak out
Because I was not a dumb-ass

 

RE: Discombobularity, posted on April 17, 2023 at 10:20:09
6bq5
Audiophile

Posts: 4384
Location: SF Bay
Joined: August 16, 2001
Mark,
Art Dudley was an incredible person, and your question must have piqued his interest-
There is also another aspect to this story -
Harvey was quite a character!
His ability to wax rhapsodically, to invent words, or concepts, that could excite, engage, enrage or antagonize was / is legendary, as it is subtle - at least sometimes....
Harvey made the most of what he had, and was quite successful-
remember the phase ' midrange so liquid you could drive a Chris Craft through it'...?
Happy Listening

 

RE: Discombobularity, posted on April 18, 2023 at 09:41:00
Analog Scott
Audiophile

Posts: 9933
Joined: January 8, 2002
There is no "mis-timing" in bi-amplification based on amplifier type. If there is such an issue it is in the cross over network. The only thing one has to consider is amplifier gain. That can be mis-matched and needs to be addressed.

 

RE: Discombobularity, posted on April 18, 2023 at 12:12:49
Posts: 1253
Location: Maine
Joined: August 16, 2011
Hi, Can you guys remember a publication called Tube God? I saved a few copies.It was put out by Listener's Harvey Rosenberg when he was running this company called New York Audio Labs.He was pushing a multi tube amp without an output transformer designed by Julius Futterman.This as late 70's time.I'll dig them up if anyone is interested...Mark Korda

 

RE: Discombobularity, posted on April 18, 2023 at 13:23:41
Analog Scott
Audiophile

Posts: 9933
Joined: January 8, 2002
I don't remember the publication but Harvey was a champion of the Futterman designs. But I remember the Futtermans as being OTLs.

 

RE: "The only thing one has to consider is amplifier gain", posted on April 19, 2023 at 05:40:29
Ivan303
Audiophile

Posts: 48887
Location: Cadiere d'azur FRANCE - Santa Fe, NM
Joined: February 26, 2001
And phase.


First they came for the dumb-asses
And I did not speak out
Because I was not a dumb-ass

 

That's a little bit trivial compared to some other issues., posted on April 23, 2023 at 12:11:55
Fuse direction
Cable direction
Absolute polarity
Polarity of source
Scattered CD laser light
Sound pressure extremes in room corners
Too much distance between speakers

 

hmmm... adolescent amplifiers -- in that awkward phase (nt), posted on April 28, 2023 at 07:53:04
mhardy6647
Audiophile

Posts: 16010
Location: New England
Joined: October 12, 1999
Contributor
  Since:
October 23, 2016
nope, nothin'
all the best,
mrh

 

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