HDTenEightyP/NetNews huggingface dataset:
From: tarr-michael@CS.YALE.EDU (Michael J. Tarr)
Newsgroups: rec.audio.high-end
Subject: Chicago Symphony Broadcasts
Date: Fri, 9 Oct 1992 13:44:49 GMT
Organization: Department of Psychology, Yale University
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


** WHAT **
	Have you ever enjoyed the weekly broadcasts of the Chicago
Symphony Orchestra (CSO) on public radio. These are distributed via WFMT
in Chicago and for the past 23 (twenty-three) have been produced and
engineered by Mitchell G. Heller, who has also engineered many of the
recent Chandos and Koch recordings of the CSO (Richard Schnieder of
Stereophile often mentions Mitchell in his reviews). In addition, I know
for a fact that many companies that bring in their own people to record
the CSO in Orchestra Hall (i.e., CBS/Sony) simply mimic Mitchell
microphone placement -- why not, after this long, I doubt anyone else
knows Orchestra Hall better. Thus, he has a hand in many of the CSO
recordings you hear.

** WHY **
	Well recently Mitchell was FIRED by WFMT (along with several
other staff members). Why? Two reasons:

1. AMAACO, who sponsors the distribution of the recordings on NPR, is
pulling funding.

2. Because of new union rules, Mitchell would become a member of the
union and would be entitled to significantly better benefits, etc...

The station is clearly happy with his work, since they are now trying to
negotiate a deal where Mitchell works "part-time" (for effectively the
same amount of time per week) but is not entitled to benefits.

** WHAT TO DO **

	If you have enjoyed Mitchell's work and appreciate the
accumulated knowledge he represents, please write to WFMT and AMAACO.
Perhaps if AMAACO realizes the number of people who do listen to this
program they will reconsider their decision. Moreover, perhaps WFMT will
treat Mitchell more fairly. Note that while the economy is bad and WFMT
is suffering, I am not aware that the large oil companies such as AMAACO
are hurting much, if at all.

** ADDRESSES **

General Manager, WFMT
Three Illinois Center
303 East Wacker Drive
Chicago, IL  60601

Mr. Laurance Fuller, CEO
AMAACO Corporation
200 East Randolph Drive
Chicago, IL  60601

** DISCLAIMER **

Mitchell is my wife's uncle, therefore I can not claim to be completely
dispassionate in this matter. But I have tried to represent the facts as
I know them. Mitchell in no way solicited or suggested this effort on
my part.

Sincerely,

Michael J. Tarr
Assistant Professor of Psychology
Yale University
PO Box 11A Yale Station
New Haven, CT  06520-7447

tarr@cs.yale.edu
From: shafer@CS.ColoState.EDU (spencer shafer)
Newsgroups: rec.audio.high-end
Subject: Re: B&W 800's
Date: Tue, 06 Oct 1992 15:19:48 GMT
Organization: Colorado State University, Computer Science Department
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

In article <1992Oct6.023932.8389@news.columbia.edu> gmw1@cunixa.cc.columbia.edu (Gabe M Wiener) writes:
>I'm curious if anyone here has had the opportunity to hear the B&W 800's.
>This is one set of speakers I've wanted to hear but have never gotten
>around to.  I'm particularly interested in how they compare to other
>speakers in their class.

Yes, I heard them at the Denver ListenUp and that was one system that 
absolutely floored me.  I was trying to identify a problem that I was 
hearing with this other system and used that one as the "standard". 
I heard some Brahms choral thingamabob that was the most glorious sound
I'd ever heard.  Better than "live".  The associated electronics could 
have had more to do with the sound than the speakers themselves because
I later heard similar electronics (Krell) connected to some Thiel CS2.2's
and had nearly the same experience.  The B&W 800 setup included Krell 250
Amp and Krell pre-amp and the new top-line Nakamichi CD.

David Haile

-- 
/\__________________________________________________________________/\
||                     DAVID HAILE                                  ||
|| email:shafer@handel.cs.colostate.edu    Work Phone: 303-498-0901 ||
\/------------------------------------------------------------------\/
From: U37426%uicvm.uic.edu@OHSTVMA.ACS.OHIO-STATE.EDU
Newsgroups: rec.audio.high-end
Subject: tubed cd players
Date: 12 Oct 92 16:13:51 GMT
Article-I.D.: uwm.1beqt1INNncl
Organization: University of Illinois at Chicago
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


      I was in an audio store the other day and saw Carver's 490t cd player.
For reasons I do not pretend to know there are two vacuum tubes in this cd
player.  If I remember correctly they were asking $675 for this player.  I did
not have much time (or money!) so I could not give it a listen.
     Does adding vacuum tubes to a cd player make a better player?  Are there
other brands of vacuum tube cd players?  What do they cost?
     I saw the spec. sheet for that tubed player and it had a THD of .6%.  That
seems kind of high.


     I would really like to here from anyone who knows anything about this AND
anyone who has any model of Carver cd player.  I have not heard much about
their players and would be very interested to listen to anyones comments.

        thanks.      tom
From: gbb@watson.ibm.com
Newsgroups: rec.audio.high-end
Subject: Dynaco FM-3 tuner
Date: Fri, 9 Oct 92 18:03:16 EDT
Organization: University of Wisconsin - Milwaukee
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

I am in need of a manual for a Dynaco FM-3 tuner.  Would someone
be willing to lend me one or photocopy it for me?  I will cover
expenses.

Thanks,
---Gary Bronner
From: bp@cs.brown.edu (Boris Putanec)
Newsgroups: rec.audio.high-end
Subject: Opinions on Kef C-95 speakers
Date: Mon, 12 Oct 1992 05:08:06 GMT
Organization: Department of Computer Science, Brown University
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


I have the opportunity to buy the Kef's at a good price and am
interested in opinions about them. I understand that Kef discontinued
the C series and kicked the 95's upscale as the Reference 1034 with a
cabinet and crossover change. 

Does anyone else have a pair? Do you like them?  

They would be connected to an Adcom 555II amp and a Sony 2000esd
pre-amp. 

Thanks for any input. (I have to decide by Friday if I want them) 

boris
From: jas@proteon.com (John A. Shriver)
Newsgroups: rec.audio.high-end
Subject: Re: Audiophile thoughts on DCC?
Date: Wed, 14 Oct 92 12:38:41 EDT
Organization: University of Wisconsin - Milwaukee
NNTP-Posting-Host: 129.89.7.4
Cc: info-high-audio@csd4.csd.uwm.edu
Originator: tjk@csd4.csd.uwm.edu

The folks at Philips have been very cagey about providing any DCC
equipment or tapes, at least to the UK audio press (which is not
nearly as advertiser subservient as places like Stereo Review and
Digital Audio).  Finally, they have recently provided some to the UK
press, in preparation for the (since aborted) launch.

DCC uses phenomenally high levels of data compression.  Given that it
does so, it does a decent job.  However, the HFN&RR listeners did hear
artifiacts.  It relies on auditory masking, but the masking's not
perfect.  It sounds better then cassette, but it is not better than
CD.

Contrary to what Pulse may say, there is no data compression in CD or
DAT.  I think the Sony MD (Mini-Disc) may also use compression.

The DCC launch abort is due to the problems with the 18 track
thin-film heads.  (Who'd of thunk it?  Using disk drive head
technology in an unsealed environment.)

I don't think DCC or MD solve any real consumer problems.  Cheap DCC
players will probably eat (wrinkle, crease, fold) tapes just as often
as cheap Cassette players.  I expect them both to "Beta".
From: eacj@theory.TC.Cornell.EDU (Julian Vrieslander)
Newsgroups: rec.audio.high-end
Subject: Re: Experience with Mirage M-3 ???
Date: Fri, 9 Oct 1992 04:36:08 GMT
Organization: Cornell Theory Center
NNTP-Posting-Host: 129.89.7.4
Keywords: loudspeakers
Originator: tjk@csd4.csd.uwm.edu

In article <1992Oct8.003150.15608@ampex.com> ampex!dna@decwrl.dec.com (David Altekruse) writes:
>Finally to my question:  Do the newer M-3si's have a different tweeter?

Yes.  The tweeter in the M-3si is supposed to be a major improvement over the
driver in the M-3.  I am only quoting the Mirage literature here, and I
have not heard the original M-3.  But the high-end of the M-3si did not
sound disconnected or "tizzy" to me, and that is an area that I am very
critical about.  If any thing, the high frequencies sounded a bit soft
(attenuated) in the demos that I heard.  And that's fine by me - I prefer
a speaker with a slightly soft top end, when listening to most commercial
recordings.
-- 
Julian Vrieslander 
Neurobiology & Behavior, Mudd Hall, Cornell University, Ithaca NY 14853    
INTERNET: eacj@theory.tc.cornell.edu     BITNET: eacj@crnlthry
UUCP: ..cornell!batcomputer!eacj
From: <MPA15C!ARTHUR@TRENGA.tredydev.unisys.com>
Newsgroups: rec.audio.high-end
Subject: Power conditioners, yet again
Date: 15 OCT 92 16:02
Organization: University of Wisconsin - Milwaukee
NNTP-Posting-Host: 129.89.7.4
Comments: Automatic Return Receipt Requested
Originator: tjk@csd4.csd.uwm.edu

Thanks for the public and private responses regarding the SOLA units, folks.
A friend called the gentleman, and it turns out that he gets them free from
computer rooms, etc., being redone.  He refurbishes them and sells them as a
hobby.  He's sending literature.

Living in an aluminum wired house (augggh!), the topic is fascinating.  In issue
16.11, Gary Bronner wrote about isolation networks based on multiple stages of
Magnetek 1:1 isolation transformers and Corcom EMF filters.  A subsequent
entry remarked that MULTIPLE stages per device worked even better.  Whatchall'
think about combing the Sola unit with the Magnetek/Corcom stages?  In other
words, paralleled off the output side of the Sola, would be <n> individual
isolation stages consisting (tentatively) of one Corcom filter, one isolation
transformer, and a second Corcom filter.   Would this tend to ameliorate
the Sola square waves that were cited by Dr. Ornitz in 17.9?

Incidentally, the original entry quoted the Corcoms at about $2.95 each.  My
Mouser catalogue shows them ranging in the $15 - $25 range depending on
intended application and power.  What gives?  With about ten potential outlets
to power, the discrepancy is significant.

  Arthur L. Shapiro        ARTHUR%MPA15C@TRENGA.TREDYDEV.UNISYS.COM
  Software Engineering
  Unisys Corporation       Speaking as a civilian, rather than for
  Mission Viejo, CA        Unisys, unless this box is checked: [ ]
From: motoyama@harl.hitachi.co.jp (Hiroshi Motoyama)
Newsgroups: rec.audio.high-end
Subject: Re: "Ultimate" Headphones
Date: 7 Oct 92 01:58:06 GMT
Organization: Advanced Research Laboratory, Hitachi, Ltd
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Return-Path: <motoyama@harlgw92.harl.hitachi.co.jp>
Cc: motoyama@harlgw92.harl.hitachi.co.jp
Originator: tjk@csd4.csd.uwm.edu


In article <1as92tINN29s@uwm.edu> tonyb@juliet.ll.mit.edu ( Tony Berke ) writes:

 >They (STAX head phones) need connection to a power amp (unless you spend 
 >*really* big money and buy one of the models that comes with its own amp).  

Yes, STAX's high-end amplifier for the model "lambda signature" is a little 
bit expensive. It costs about $600 even in Japan. But if you DoItYourself,
You can enjoy the sound of almost the same quality at less than $200(this 
figure is for total parts price IN JAPAN. I don't know how more or less
expensive in the US or other countries)

In the STAX amp, we find a FET-differential for the first stage, and 6CG7 tube 
push-pull for the second stage. The major NFB is applied, in balanced way,
from the output ends to the resistors which are inserted between the source 
electrodes of each FET and the common current sink of the differential amp.

In my DIY amp, a dual IC-OP amp is used for each channel, instead of discrete
FET's. The final stage is also a push-pull amp using a 6CG7, but I use it 
without any major NF loop and the tube operates in differential manner.
In this arrangement, we are free from oscillation and can keep the sound 
quality excellent.

The polarizing bias is applied half from the plate voltage, the other from
a battery for flash guns. So, there is no high-voltage rectifier in my amp.

The major parts used are (for stereo):
  
   6CG7's        2
   OPamps        2  dual, FET-input
   NPN Tr's      2  for current sink  
   Si bridge     1  for +550V DC output
   Si bridge     1  for OPamps +/- 15V DC output
   regulators    2  for +15 , -15V each
   transformer   1  2nd winding; AC 400V-40mA, AC 30V-30mA with a center tap,
                                  and AC 6.3V-1.5A
   battery       1  270V for photo gun use

   
Any questions are welcom.
--
Hiroshi Motoyama
From: davidc@engin.umich.edu (David Cortright)
Newsgroups: rec.audio.high-end
Subject: Re: Audiophile thoughts on DCC?
Date: 12 Oct 92 22:20:11 GMT
Article-I.D.: engin.Fq6-hdA
Organization: University of Michigan
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

Audiophile thoughts on DCC?

	Well, I recently read an article in "Pulse", a magazine published
by Tower Records (not a great source, but good general info.)  From
what I read, it seems that both systems use data compression so that
the audio signal is slightly degraded, so in that sense I don't
think that anyone would use them for mastering in the studio, or
even live for that matter.  They are aimed mostly at the consumer. 
Their primary benefits include long recording times (about 70 min
for the MagnetoOptical disc), Very low distrotion and hiss, and a
large dynamic range on a recordable medium.  The players and blank
tapes/discs are going to be about the same price initially
($500-$1000 and $8-$10).  The advantage of MO discs is that they are
capable of nearly instant track acsess time, as opposed to the
relatively slow ffwd/rwd speed of the DCC.  Also, with a tape
format, there is always the possibility of dropouts.  But if you
think you might want to EQ the sound, or put it through a Simulation
Surround processor, then your on your own, cause if a fequency range
has been cut due to the compression algorithm, you can't modify it. 
If you're looking for exact, audiophile reproduction, go for a DAT. 
These formats are aimed at the average consumer.  Incidentally, both
formats intend to back up the relase of the players with a few
hundred pre-recorded discs and tapes, I think DCC will initially
have more.  I can almost gurantee that one of these formats won't
last longer than Beta did, and if I had to bet, it'd be on Sony's MO
disc format.  Happy Listening!
									-Dave Cortright
From: steve@helix.nih.gov (Steve Fellini)
Newsgroups: rec.audio.high-end
Subject: Sonic Frontiers, VTL Amps
Followup-To: rec.audio.high-end
Date: Fri, 9 Oct 1992 02:31:36 GMT
Organization: Nat'l Insts of Health
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


I've purchased a Sonic Frontiers SFS-80 amp "on approval" and would like
to hear from anyone else who is familiar with this amp.  

My impression after listening for a couple of days is a little
disappointing.  The sound seems very tilted towards the treble (however the
treble is also
very smooth and makes a great solo violin sound).  There is little bass, 
which wouldn't have bothered me as much had I not just finished auditioning

a McCormack DNA-1 (which made me realize there's more bass in my speakers 
than I thought, a nice sounding amp -- but way too forward a sound for my
tastes).  The SFS-80's sound also has much less body than the McCormack;
cellos are thin sounding.

I'd also like to hear from VTL owners: happy with the sound? is there 
bass? are they as unreliable as I hear?

Thanks!
Steve

(Other components in my system: JVC XLZ1050TN CD player/C-J PV5 preamp/
Synthesis LM-200 speakers).
From: tcheung@gandalf.rutgers.edu (Tak Cheung)
Newsgroups: rec.audio.high-end
Subject: Audio Synthesis D/A any one heard it yet ??
Date: 14 Oct 92 16:06:48 GMT
Organization: Rutgers Univ., New Brunswick, N.J.
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu


This is to fellow audiophiles, especially those in the U.K.

What's this Audio Synthesis D/A thing ??  Is this a good, state of the
art D/A ??

It uses the UltraAnalog 20-bit chip and someone, albeit the dealer in U.S.,
said it is so good that he can dispense with his Linn :0 :0.

I believe the sister company of The Cable Company is handling its 
distribution in the U.S. via the newly established Ultra System chain.

So any folks in the NE U.S. (mostly PA, NJ, NY areas) heard this 
D/A yet ??  If so please enlighten us (me especially) by posting your
impressions.  Ultra Systems guys sell them for $2.5k with $200 of cable
credit, kind of like 8% discount.

First there was Theta, Wadia and the rest, now D/A converters are springing
up like wild mushrooms and they all claim analog like.  I really think I 
should just as well buy a used Linn or VPI and the whole record collection
of someone who is junking the analog source :) :).

So, what's the latest on D/A converters ??  Is Theta now the king with its
generation III and generation II Data.

Oh, while I'm at this, has anyone used the Theta Data ??  If so how does it
compare with the latest from Wadia 6/8 or Krell or EAD or Melos or ....
you know the usual lists.  I usually use the AT&T glass out/in for D/A and
transports so please comment on that too.

There is just no safe place for a good D/A anymore, whew....

					TKC
From: jmbarthol@ualr.edu (John M. Barthol)
Newsgroups: rec.audio.high-end
Subject: Inexpensive Interconnect Advice Needed
Date: 13 Oct 92 16:45:57 GMT
Organization: University of Arkansas at Little Rock
NNTP-Posting-Host: 129.89.7.4
Originator: tjk@csd4.csd.uwm.edu

Hi All,

I was wondering if any of you could recommend decent interconnect cables
for around $50-$60.  I am currently using homebrew interconnects with some
PS-Audio braided cable I purchased from a dealer who is no longer in business.
Please respond by E-Mail.

Thanks in advance,
John (JMBARTHOL@UALR.EDU)

-- 

Thomas Krueger                       UW-Milwaukee Engineering Electronics Shop
tjk@csd4.csd.uwm.edu                                         +1 (414) 229-5172
    Moderator: rec.audio.high-end, Info-Fortune, and Mystery mailing lists
From: hera!gfl@uunet.UU.NET (22402-lenahan)
Newsgroups: rec.audio.high-end
Subject: Re: Source for high-quality pots / impedance questions
Date: Fri, 9 Oct 92 18:45:15 GMT
Organization: Bellcore, Livingston, NJ
  (5.65c/IDA-1.4.4 for rec-audio-high-end@uunet.uu.net); Fri, 9 Oct 1992 14:45:19 -0400
NNTP-Posting-Host: 129.89.7.4
Summary: !!
Originator: tjk@csd4.csd.uwm.edu

(Thomas W. Matthews) writes:

Then writes a whole buncha good stuff, but
admits (;-))
> 
> This got longer than I intended.

I just have to add a point here. 
First, I assume that people who use passives do
so for SOUND QUALITY, not convenience, I mean this
is really a bit hobby-ish, so forgive me if I assume
that you want GREAT sound.

All Tom's points were great - but they affect _convenience_
and _gain_, not linearity of reproduction (the all-inclusive,
one-size fits all. metric).

The worst thing about a high output Z, and thus of passive preamps,
is that when loaded with a non-linear load, they
cannot act as a voltage source.  Thus, you get distortion
(shudder).

If the load varies with voltage, you may get compression
of dynamics; if with frequency, you may lose or agin highs
or lows (or anything in between).  Since may amps do NOT
have linear input buffers (watch out for that word "nominal"),
you are in potential trouble.

Next, some reviewer trys it, doesn't do his homework,
and reports that the POT that you/he/she used has a
"slightly sibilant and overly foreward upper midrange".

Now, passive preamps may work wonderfully for you,
but beware that a high output impedance means that
every loading irregularity, from cables to input
stages, becomes a sonically significant pitfall.

Now I've gone on longer than I expected, too.

Grant
gfl@hera.cc.bellcore.com


w
From: jas@proteon.com (John A. Shriver)
Newsgroups: rec.audio.high-end
Subject: turntable set-up
   From: Scottl@mot.com (Scott Lindsey)
   Date: Wed, 14 Oct 1992 14:02:33 GMT
Date: Thu, 15 Oct 92 12:06:54 EDT
Organization: University of Wisconsin - Milwaukee
NNTP-Posting-Host: 129.89.7.4
Cc: info-high-audio@csd4.csd.uwm.edu
Originator: tjk@csd4.csd.uwm.edu

   [...]
   								The only way
   that you will have the cartridge match both patterns is with an infinitely
   long tone arm (theoretically, anyway) or using one of the linear tonearms.
   My recommendation is to pull the original piece of plastic out of the trash
   and use that....

NO!  The whole point of tonearms having an offset angle is so that
there will be two zero offset points.  Only a non-bent tonearm has one
zero offset point.  If you can't get a zero at both offset points on
the protractor, your arm is set up wrong.  Period.

One set of definitive articles are "Minimizing Pickup Tracking Error",
Dr. John D. Seagrave, Audiocraft, December 1956 and January 1957.

For a given pivot to spindle distance, there is one optimum overhang
and offset.  His computations are based on minimizing 2nd harmonic
distortion due to offset error over the playing radii of a typical LP.

One can argue whether Seagrave's minimum distortion algorithm is the
best.  There is no question that the tracking problems are always more
severe at the inner radii (wavelength, and crescendos), so one might
want to bias some towards lowest distortion there.  However, if you
start with his setup, you'll be damn close.

The zero offset radii differ slightly with the length of the arm.
Protractors use a fixed pair of radii, but that's close enough.  But
you've got to get a zero at both.  (Overhang guages, like that AR one,
are specific to one particular pivot to spindle distance.)

(Yes, if you are desperate for copies of the article, I can provide
them.  I wish I could scan them and post them as PostScript.)
From: tjk@csd4.csd.uwm.edu (Thomas Krueger)
Newsgroups: rec.audio.high-end
Subject: Source for Neutrix XLR Connectors Wanted
Date: Wed, 14 Oct 92 10:00:12 EDT
Organization: Galaxy Scientific Corp.
Reply-To: clayton%galsci.UUCP@mathcs.emory.edu
NNTP-Posting-Host: 129.89.7.4

Does anybody know of a distributer for Neutrik XLR connectors?  I tried
Belden, but the connectors they shipped me did not match the catalog 
description.  I have since been told that Belden has dropped the Neutrik
line.

Any leads here would be greatly appreciated.

Thanx,
Chuck