HDTenEightyP/NetNews huggingface dataset:
From: jeh@cmkrnl.com
Newsgroups: rec.audio
Subject: Re: Science versus TechnoBabble and Golden Ears
Date: 16 Oct 92 19:46:45 GMT
Organization: Kernel Mode Consulting, San Diego, CA

In article <Bw7Fx6.A2E@solbourne.com>, kucharsk@solbourne.com (William Kucharski) writes:
> While reading article <23900@alice.att.com>, I noticed that
> jj@alice.UUCP (jj, really disgusted curmudgeon) said the following:
>  >This is part of why the US HAS no audio industry.
> 
> Uh, I know it's hip and trendy in this thread to bash the Golden Ears, but
> in reference to the comment above, try the following exercise:
> 
> 1) Pick up a copy of the October, 1992 issue of Stereophile.
> 2) Scan through both the "Recommended Components" and the advertisements
>    within, and note the number of companies located overseas.
> 
> As opposed to mass-fi, the locale of high-end audio manufacturers breaks down
> more or less as:
> 
> 	90%	United States
> 	 5%	Europe
> 	 3%	Canada
> 	 2%	Japan

Not only that, but a lot of US high-end equipment is in HUGE demand in Japan! 
(At least this is what I've been told by sources I consider reliable.  I 
haven't seen it with my own eyes.)

	--- Jamie Hanrahan, Kernel Mode Consulting, San Diego CA
Internet:  jeh@cmkrnl.com, hanrahan@eisner.decus.org, or jeh@crash.cts.com
Uucp:  ...{crash,eisner,uunet}!cmkrnl!jeh
Newsgroups: rec.audio
From: bp@cs.brown.edu (Boris Putanec)
Subject: Re: optical vs. coax digital interconnects
Organization: Department of Computer Science, Brown University
	<1992Oct13.004736.26925@mnemosyne.cs.du.edu>
Date: Tue, 13 Oct 1992 04:42:46 GMT

In article <1992Oct13.004736.26925@mnemosyne.cs.du.edu> tlode@nyx.cs.du.edu (trygve lode) writes:

   Just a few more comments--note that Toslink and AT&T glass fiber are two
   entirely different transmission schemes, not just a difference in cable
   materials.  (I believe it's pretty much universally accepted that Toslink
   is considerably inferior to coax while AT&T is usually slightly better 
   than coax.)

Now this really confused me. Are not the digital-to-digital
interconnects bit streams? I don't understand this. How come a cheap
$25 doller SCSI cable gets every bit right between the hard disk and
the computer but all these options don't seem to do it.

Am I missing something obvious?

This also applies to transports. Four hunderd doller CD-ROMs seem to
do fine reading every bit of a disc correctly. Why pay >$3000 for some
esoteric transports for the same behavior. Is not digital, digital?

boris
From: curtiws@wkuvx1.bitnet
Newsgroups: rec.audio
Subject: Re: Vinyl source
Date: 12 Oct 92 01:45:34 GMT
Organization: Western Kentucky University, Bowling Green, KY

In article <1992Oct7.084049@trc.amoco.com>, znpt01@trc.amoco.com (Norman P. Tracy) writes:
> 
> In article <CB.92Oct6152827@tamarack13.timbuk>, cb@tamarack13.timbuk (Chris Brewster) writes:
>> 
>>  - Let's stop referring to LPs as "vinyl".  CDs are also vinyl.  LPs
>>    were called LPs from the very beginning, and that term is still the
>>    clearest.
>> 
>> Chris Brewster
>> cb@cray.com
> 
> Actually CDs are polycarbonate not vinyl.  I like the terms from an English
> mag., "black disk" (LP) and "silver disk" (CD).  Then CD-R would be "gold
> disk".
> 
> Norman Tracy (znpt01@trc.amoco.com)

How about just compact disk and record?


Scott Curtis
From: myers@hpfcso.FC.HP.COM (Bob Myers)
Date: Wed, 14 Oct 1992 15:32:16 GMT
Subject: Re: Science versus TechnoBabble and Golden Ears
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: rec.audio

> Let's not take bad science, build ourselves a strawman, then knock it down
> in the name of destroying good scientists. If you want to battle against
> pseudo-science, poor science and rank amateur scientists who haven't a
> clue, fine. Don't pick bad examples, though, and proceed with a holy crusade.

Oh, come on, Dick - if you're going to limit the Golden Eared crowd like
this, they won't have anything left to post!  I mean, they're obviously not
going to take on pseudo-science or poor science, since it'd be shooting
themselves in the foot, and Strawman Construction and Flattening accounts
for about 99.5% of the volume around here.  What do you WANT, a group where
only calm, rational discussions occur?  

Only about 1/2 a :-).



Bob Myers            | "One man's theology is another man's belly laugh." 
myers@fc.hp.com      |                     - Lazarus Long/Robert A. Heinlein
                     |                                
Newsgroups: rec.audio
From: tlode@nyx.cs.du.edu (trygve lode)
Subject: Re: need recommendations for center channel speaker
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Date: Sat, 10 Oct 92 22:10:08 GMT

In article <5410@gold.gvg.tek.com> chrisc@gold.gvg.tek.com (Chris Christensen) writes:
>
>I recently read a suggestion by another poster to locate the surround
>speakers on the side wall, pointed forward.  This positioning
>_excluded_ the listener from the surround sound field.

Quite the contrary--actually it's an extremely effective technique when 
used with bipolar speakers.  At the moment, I'm actually using four bipolar
speakers, one pair on each side wall facing forward, one pair a short
distance in front of the listening position, the other a short distance
behind.  With the front speakers turned off, you can hear the sound
generated by the surround speakers, but the sound is, quite literally,
surround, with an absense of any directionality or perception that the
sound is coming from the speakers.  There's also the advantage with this
approach that it is fairly immune to listening position--even being fairly
far from the center seat doesn't impart a directionality to the sound.
With the front speakers activated, this arrangement does a particularly
good job of "steering"--sounds from off-camera really do sound like they
are coming from the appropriate location.  
Newsgroups: rec.audio
From: peterh@uxa.cso.uiuc.edu (huang peter suway)
Subject: FOR SALE: AKG K280 Headphones
Summary: headphones
Organization: University of Illinois at Urbana
Date: Mon, 12 Oct 1992 14:45:55 GMT
Keywords: headphones

Hello,
 
I have one pair of AKG K280 headphones for sale. It is in perfect 
condition. They retail for around $200 new. I just bought it a couple
of months ago.
  
I am just trying to sell it to raise some cash for other equipment.
   
I will consider all serious offers and see what kind of reponses I get
before I decide whether or not I will sell it.
    
Thanks.
     
Later,
      
Peter Huang
phone: (217) 332-4156
e-mail: peterh@uxa.cso.uiuc.edu
From: ianb@hpopd.pwd.hp.com (Ian Bennett)
Date: Fri, 9 Oct 1992 15:57:47 GMT
Subject: Re: Devon, England anyone?
Organization: Hewlett-Packard ISG-SBU-PWD, UK.
Newsgroups: rec.audio

JPW Loudspeakers Ltd
Ocean Quay
Richmond Walk
Plymouth
Devon PL1 4LL
England

Tel: 0752 607000 Fax: 0752 607001


Thought I would reply since you have probably
been told dozens of times now! If you have not 
then this is useful, if you have then nobody
else should reply now so its still useful.
So there!


Newsgroups: rec.audio,rec.video,misc.consumers
From: vanm0005@student.tc.umn.edu ()
Subject: Re: Problems dealing with this mail order outfit
Keywords: Electronic Wholesalers, Mitsubishi U57 VCR 
Organization: University of Minnesota
Distribution: usa
Date: Thu, 8 Oct 1992 16:42:52 GMT

[snipped a little too much of the original article, sorry]

I have a JVC CD player that I purchased an extended warrantee on from Best Buy,
and that was a five year warrantee that includes a 5 free cleanings deal.  My
opinion on the bit is that it was definitely worth my money.  First, after about
a year and a half of moving from dorm room to dorm room, and taking the CD
player everywhere in the process, the transport started making noise. (I.E.
clickuing noise and the like.)  They fixed it in two days, no questions asked.
Then a year later, the laser went, and they fixed that in 2 weeks (they had to
order the part from JVC)  Again, no questions asked.  Great service for $39.
Anyways, I decided to ask the price for a new laser for my particular model when
I was ordering a belt for my JVC cassette deck (10 years old now) and they told
me even an authorized dealer would have to pay close to $70 for one, and that
the installation takes about two hours.  I figured that's not bad for $39.

But that is about the only thing I ever bought warrantee on, because it was the
only component that I ever bought that was worth quite a bit ($350 or so)

Best Buy, by the way, is a chain in Minnesota, Wisconsin, (maybe Texas), and
I have always had good experiences in dealing with them.  Plus they sell most new
releases for $10 for a CD.  Bargain.

Mike

Newsgroups: rec.audio
From: bill@ssr.hp.com (Bill Chidester)
Subject: Re: Please recommend a good subwoofer
Date: Fri, 9 Oct 1992 03:06:45 GMT
Organization: Hewlett-Packard, Orlando Fl.
X-Newsreader: TIN [version 1.1.4 PL6]

Ben Fogarty (fogarty@erenj.com) wrote:
: I would like to add a pair of subwoofers to my home system.
: I currently have a pioneer tuner/amp and a pair of cirwyn vega speakers.
: I have seen the CV subwoofers advertised but do not know if they are
: decent quality. I would appreciate any advice on subwoofers and where
: to buy them at a reasonable cost. Thanks for your help.

   I have an Audio Pro B2-50 powered subwoofer that I dearly love.  It's
   moderately small and does not use any velocity transducer in the feedback
   loop (a high failure item in most subwoofers).  It uses an electronic
   feedback concept called ACE that the inventor swears isn't a back EMF
   feedback circuit.  Basically, it uses a negative resistance DC amplifier to
   dial out all of the driver resistance, sensing an error signal generated
   off of a .1 Ohm resistor between the drivers and ground.  The error signal
   is assumed to be due to reactive components generated by the mechanical
   distortions of the driver so they are cancelled by the differential 
   amplifier (I think).  

   At any rate, it must work since it delivers < 3% THD at 20 HZ, 100 DBA -- 
   meaning it doesn't double like most subwoofers will when driven hard.  One 
   of them stuffed in the corner of a room (uh, you better have a concrete
   pad, it goes a little below 17 HZ) will do quite well, but you could use
   two of them if you insist on "real stereo".  You'll need to have seperate
   pre-amp/amp (or at least a bridged receiver) since it has low pass to
   the subwoofer and high pass outputs back to the amp to limit all that 
   low frequency power bandwidth that your satellite speakers can't use
   anyway.

   As for affordable?  Get one used if you can.  New price for a B2-50 was 
   >$1200, a good used price is $400 - $500.   A friend of mine has the A4-200
   version which comes to you after you sign a quit claim absolving the
   manufacturer and dealer of any liability for structural damage to your 
   dwelling.  It also has a warning that you don't want to run the thing 
   anywhere but the first floor of your house.  The B2-50 uses two 5" drivers
   (no kidding!), the A4-200 has four of them.  Another friend of mine
   copied the design for a subwoofer to be used in a nightclub, but he used
   two 12" drivers and a 400 watt OP-AMP.  Kids, don't do this at home:  It
   blew two sliding glass doors out of their tracks.
    
---------------------------------
Bill Chidester   KE4WS        "A good subwoofer is used to adjust the 
bill@c3177208.ssr.hp.com       barometric pressure of the room"
Newsgroups: rec.audio
From: pw15@cunixa.cc.columbia.edu (Philip  Wang)
Subject: my CD player is stuck
Reply-To: pw15@cunixa.cc.columbia.edu (Philip  Wang)
Organization: Columbia University
Date: Sat, 10 Oct 1992 17:15:42 GMT

Have any of you ever had your CD stuck in your player? This is what happened to
mine. I've got a JVC system with the six-disc magazine and a one-disc player
directly underneath (CA-MX77MTN Compact Component System), and I stuck in a
disc in the one-disc player. However, it wouldn't play, and when I tried to
remove it the tray didn't come back out. My magazine doesn't function anymore
either. I can't find a telephone number in my manual and as I got it through
the Mastercard Citidollars thing I don't think I'm able to find someone who can
help me get the thing working again. Is there a number I can call from JVC or
something I can do myself? It's still under warranty I believe (I don't think I
did anything to abuse it).

philip



PHILIP WANG pw15@cunixa.cc.columbia.edu 
"On the other side jesters keep their watch, fifteen million lives ready to be
lost. We come from the northern headlands, the warriors of ice come to cleanse
the world, destroy the human sacrifice." - HOLOCAUST, "The Nightcomers"
From: gould@waterloo.hp.com (Dan Gould)
Newsgroups: rec.audio
Subject: Looking for Tape Deck /w Timer
Date: 16 Oct 92 16:47:14 GMT
Article-I.D.: waterloo.Bw83yq.62G
Organization: HP Panacom Div Waterloo ON Canada
X-Newsreader: TIN [version 1.1.4 PL6]


I am looking for a tape deck with a timer so that I can record selected
radio programs. I have thus far never been able to find one.

I no such thing exists, then a tape deck with an external 'record' connector
to allow me to connect and external timer will be fine.

The deck itself needs to be of 'music quality', cassette tape format.

Thanks in advance for any help you may be able to offer.

--

Dan Gould
gould@arris.on.ca
Newsgroups: rec.audio
From: marcel@convex.com (Marcel Bourque)
Subject: Re: Speaker building question
Keywords: speaker building
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
Date: Thu, 8 Oct 1992 14:28:47 GMT
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.


>Absolutely not correct. The formulas derive only the free volume of the
>enclosure and do not (and cannot) account for aother things that might
>take up valume, such as the driver itself, bracing and so on. So yes,
>indeed, you do need to compensate accordingly. How such a formula might
>know exactly what the volume of all these things are is a mystery. 

What about ports? Do I increase the enclosure size to take into
account just the material in the the tube used to make the port (PVC
pipe) or must I take into account the total volume occupied by the
port? 

Thanks for the advice.

Marcel

Newsgroups: rec.audio
From: "bernard hickey" <bernard.hickey@canrem.com>
Subject: laser turntable
Reply-To: "bernard hickey" <bernard.hickey@canrem.com>
Organization: Canada Remote Systems
Distribution: rec
Date: 12 Oct 92 14:12:56 EST

I've recently seen a review of the laser turntable you refer to.
Unfortunately I don't recall which mag nor the name of the product.
Never-the-less it is now in production and is apparently very good. The
reviewers compared it to a Linn Lingo'ed LP 12.  The Linn won on most
comparisons but not on all - they mentioned a jazz recording that was
clearly better via the laser turntable.  I was very interested in wether
the laser TT was imune to clicks and pops. It's not, in fact it
reproduces these faithfully with almost exactly the same effect as does
a traditional TT.  It also has a problem with dirty LPs - in fact a
vacuum type LP cleaning machine.  From the photo of the cleaner it would
appear to be a VPI 16.5.  I personally believe that such a machine is
mandatory with any high-end table.  Recently I purchased a VPI 16.5 to
complement my Roxsan Xerxes.  The effect of using the cleaner is
remarkable, removing all nasties except physical pitting.  The most
remarkable effect however is that static charge is neutralized! -
although if it was particularilly bad to start with you may have clean
it twice.  There is nothing worst than a electrically charges LP - they
suck in microscopic dust like a vacuum cleaner.

Now let me take a stab at the name of the laser TT - Finial (sic?).
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
Newsgroups: rec.audio
From: shiv@bnr.ca (Shiv Naimpally)
Subject: Re: Hughes SRS experiences?
Reply-To: shiv@bnr.ca (Shiv Naimpally)
Organization: Bell-Northern Research Ltd.
Date: Wed, 14 Oct 92 21:12:31 GMT

I saw a review of SRS recently (can't remember which magazine now)
and the reviewer said he was hard pressed to hear any differences
on stereo material but that it did make a diff with mono material !
I would listen to it first before buying - take some CDs you are familiar
with and get them to use the same type of speakers you have at home.
Newsgroups: rec.audio
From: moskowit@panix.com (Len Moskowitz)
Subject: Re: DAT Walkmans
Date: Thu, 8 Oct 1992 14:47:54 GMT
Organization: PANIX Public Access Unix & Internet, NYC

In article <kwaters.718383893@frodo> kwaters@frodo.cs.uct.ac.za (K A
Waters) writes:

>I recently saw a Sony DAT Walkman in action... the first DAT walkman
>I've ever seen (Didnt even know they existed) 
> 
>What I'd like to know, is: How much do these goddies cost?  

Around $600.

-- 
Len Moskowitz
moskowit@panix.com
Newsgroups: rec.audio
From: DPierce@world.std.com (Richard d Pierce)
Subject: Re: Xover design programs
Organization: The World Public Access UNIX, Brookline, MA
Date: Fri, 16 Oct 1992 15:42:19 GMT

In article <19921016.050702.879@almaden.ibm.com> BARRON@RHQVM14.VNET.IBM.COM writes:
>Does anyone know of any public domain xover design programs?
>Even a public domain version of spice, or something like that.
>I d/l'd a PSPICE from Madisoounds BBS, but can't get it to work at all.

SPICE is not a design program. It is a simulation program. I use SPICE
quite a lot in my work designing networks, but only after I have
"designed" the network and am in the "tweak" phase. It provides a great
way of saving time, since a simulation run on SPICE takes less time than
hunting through my box of inductors looking for just the right value
(which I don't have anyway, in all likelyhood:-).

>
>Also, does anyone have any info on how to order LEAP, or where to
>get some glossies on it?
>

LEAP (Loudspeaker Enclosure Analysis Program) is produced by:

    Audio Teknology, Inc.
    7556 SW Bridgeport Road
    Portland OR 97224
    (503) 624-0405

The base system (enclosure design simulation) is $295.00. You can add
various modules (corssover optimizer, filter designer, driver parameter
measurement, etc.) and end up spending $895.00 for the complete setup.


-- 
|                Dick Pierce                |
|    Loudspeaker and Software Consulting    |
| 17 Sartelle Street   Pepperell, MA  01463 |
|       (508) 433-9183 (Voice and FAX)      |
From: kevinm@ocf.berkeley.edu (Kevin Miller)
Newsgroups: rec.audio
Subject: What are expensive cables?
Date: 14 Oct 1992 08:05:39 GMT
Organization: U.C. Berkeley Open Computing Facility
Distribution: na
NNTP-Posting-Host: tornado.berkeley.edu

When people ramble on (and on and on...kinda like the Energizer Bunny) about
expensive cables, what, exactly, is an "expensive" cable?  Are we talking 
hundreds of dollars per foot, or is it more on the order of about $1/foot?

I have Monster cable on my Kenwood receiver that costed me around $20 for 15
feet.  I realize that this is dirt cheap as far as high-end wiring goes, but
at what point (I know I'm going to start it with this...) in price does the
law of diminishing returns take effect?

I can imagine now the wide range of answers I am going to get with this one,
but it seems that if you don't define exactly where a cheap cable ends and an
expensive cable starts, you could easily be arguing apples and oranges.

Kevin
kevinm@ocf.berkeley.edu
From: igb@fulcrum.bt.co.uk (Ian G Batten)
Newsgroups: rec.audio
Subject: Re: optical vs. coax digital interconnects
Date: 13 Oct 92 08:03:02 GMT
Organization: Fulcrum Communications

I have no view on the views I will express :-)

In article <BP.92Oct12234246@hobbes.cs.brown.edu> bp@cs.brown.edu (Boris Putanec) writes:
> $25 doller SCSI cable gets every bit right between the hard disk and
> the computer but all these options don't seem to do it.

The SPDIF format, it is claimed, suffers from the fact that the receiver
has to recover the clock and the word-select from the data stream.
Jitter in the recovered stream will equate to jitter in the recovered
clock.  The high-end DAC designer upstairs claims that jitter in the
receiver ASIC, for example, is a Bad Thing.  All this tends to imply
that rise-time is an issue in the link.  Note how sensitive Ethernet ---
another self-clocking protocol --- is to poor terminations.

Note that several transports now support using the clock from the DAC
(Linn, new Arcam) so that this problem is attacked from a different
direction.  You know the clock that the SPDIF was built with, so don't
have to receover it.  Word select is less of an issue.

> This also applies to transports. Four hunderd doller CD-ROMs seem to
> do fine reading every bit of a disc correctly. Why pay >$3000 for some
> esoteric transports for the same behavior. Is not digital, digital?

CD-ROM uses a much stronger Error Correction strategy, I believe.

ian
Newsgroups: rec.audio,aus.hi-fi
From: gps@ecr.mu.oz.au (Gavin_Paul SMITH)
Subject: Crossovers
Organization: Computer Science, University of Melbourne, Australia
Date: Thu, 8 Oct 1992 01:54:44 GMT

 
I am intending to build a set of speakers from scratch for surround
sound using $15 and $20 drivers hence this in not a big budget 
prodject  . I intend using just a simple 4.7 uF , 50V Electrolytic
Bi-polar Capacitor . The Speakers are a 45W 8 Ohm mid and an Al Dome  
Tweeder (35W , 8 Ohm) . 

The Question is does the crossover run 


                                     
                      Mid  + -----------!!---------- - Tweeder
                           - ----------------------- +

    or do you run the crossover
 
                      Mid + ------------------------ - Tweeder
                          - --------------!!-------- + 

             !! represents the capacitor

or do you run   positive to positive ?!?!?!

Any comments would be appreciated .
.
Thanks .

********* gps Melbourne University - Chemical Engineering. *********	
   Your Achievement .. What has it come to ????????????????????
 ************NAPALM DEATH********MANCHESTER UNITED F.C.************ 
                     The Fatality of Optimism .   
Newsgroups: rec.audio
From: shiv@bnr.ca (Shiv Naimpally)
Subject: Re: cd player recommendations?
Reply-To: shiv@bnr.ca (Shiv Naimpally)
Organization: Bell-Northern Research Ltd.
Date: Wed, 14 Oct 92 21:38:05 GMT

I have a Rotel and like it very much - I listened to HK and Luxman
as well but the Rotel just sounded better.
Newsgroups: rec.audio
From: tpremo@mentor.cc.purdue.edu (Todd Premo)
Subject: HELP..Bandpass enclosure question..
Summary: need help combining two bandpass enclosures 
Organization: Purdue University Computing Center
Distribution: na
Date: Thu, 8 Oct 1992 19:25:50 GMT


I am trying to build a bandpass enclosure with two AC8 8" drivers.

I have the preliminary specs for a single driver bandpass enclosure 
	(thank you Brian Gentry)

and they are as follows:

	Vported = 0.589 ft^3
	Vsealed = 0.527 ft^3
	Vent Freq = 63Hz
	port = 4" dia and 11.46" long

	Now, what I would like to do is design this enclosure sich that
both drivers fire into a single ported center chamber.

		|-------------------------------|
		|  	|      | |   	|	|
		|      /|      | |      |\ 	|
		|     | |      | |      | |     |
		|      \|               |/      |
		|       |               |       |
		|_______|_______________|_______|

	My question:
		What should I do to get the proper volume for the ported 
	chamber?  
		What changes must I make to the port specs?

	Thanks, 

	Todd

-- 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 (___________________________________ %   Todd Premo  
         /              /      /      %   Purdue Universtiy 
       /    __	 __   / __   /        %   Engineering