HDTenEightyP/NetNews huggingface dataset:
From: gerry@keele.ac.uk (G.D.Pratt)
Newsgroups: rec.audio
Subject: Re: QED DAC (was: Re: DMX, DCC, psychoacoustics)
Date: 2 Oct 92 15:54:41 GMT
Organization: University of Keele, England
X-Newsreader: TIN [version 1.1 PL6]

S S Sturrock (sss@castle.ed.ac.uk) wrote:
: In article <1992Oct1.200506.20624@scic.intel.com> sbradley@scic.intel.com (Seth Bradley) writes:
: 
: >obtain.  Speaking of which, does anyone have any experience with the QED DAC
: >which sells for $300?  Seems almost too good a deal to be true :-).
: >-- 
: 
: Seriously though, the QED should only be bought if you fit
: into one of these catagories:
: 
: 1) Your player is *VERY* old but you can't bear to part with it.
: 2) Your player is *VERY* cheap and you can't afford to stump up the price
:    of a full new player.
: 3) A DAC is a DAC and digital is digital so the sound is perfect but you
:    just have to have one to keep up with the jones's.
: 
: The QED will keep all these groups happy and does make a good attempt at
: being an audiophile component, albeit from the Marantz school of sound.
: 
Yes I have one of these - bought probably for reason 3) I'm afraid. My
experience of 6 months use of this is:-

BAD NEWS: It does not have an optical input, just the standard one - but 
everything I read says optical connections don't sound as good anyway. 
It only handles CD Digital output so you cannot hook it up to a DAT tape, 
and no phase invert. It runs off 12V DC and comes with a giant 3 pin plug
which outputs 12V DC. It looks dreadful - I've hidden mine behind a CD stack.
It comes with very little info but I leave mine switched on permanently,
since May, as I think that is best for these things.

GOOD NEWS: Uses the Phillips SAA 7323 Bitstream DAC and the SAA 7274 ADIC
(Audio Digital Input Circuit) - this is normally refered to as the "third
generation Phillips chipset" and is also used in the Audio Alchemy DAC. 
It makes a subtle difference to the CD sound - it seems to deal with
complex stuff better, bass is not increased but has more definition and
percussive sound (like acoustic bass, guitar and piano) are better resolved
- it sounds like the string is being plucked etc. However the difference is
definitely _subtle_ and I was slightly disappointed with some CDs. I guess
it can only make the music sound as good as it is recorded. Well recorded
stuff, like Ry Cooder which I listen to a lot, sounds great.

QED address is 	QED AUDIO PRODUCTS LTD.,
		UNIT 12,
		ASHFORD INDUSTRIAL ESTATE,
		SHIELD ROAD,
		ASHFORD,
		MIDDLESEX
		TW15 1AU
		ENGLAND


They sell for 125 UK pounds (inc UK VAT) (= c. $200 at today's exchange rate)
and have got good reviews in HiFi Choice and What HiFi including this years
awards. Mine is currently attached to a Rotel 855 CD player.

gerry
--
gerry pratt  --  workstation support  --  university of keele
email:  gerry@seq1.keele.ac.uk   *   telephone :  0782 583072
"these opinions are mine, mine, Mine.....ALL MINE I TELL YOU!"
Newsgroups: rec.audio
From: rprice@cbnewsg.cb.att.com (rodney.price)
Subject: Re: Designing Crossovers
Summary: no anechoic chamber?
Organization: AT&T
Date: Wed, 30 Sep 1992 23:08:58 GMT


>(Patrick W Lauson) writes:
>
>>Thanks for the reply, Chris.  By what you are saying, it sounds 
>>like you can come up with a pretty good speaker, but not really a 
>>perfected one without the use of an anechoic chamber...
>
>Thank you, But if I gave you that impression about 
>Anechoic chambers then I was wrong. There is test 
>equipment available that can reduce or eliminate the need 
>for the A Chamber. Respectable resulit can be optained 
>with speactum analyzers, pink noise and an open field. 

I saw this post today, but I missed the discussion that lead up to 
it.  I'm interested because I did a master's degree in acoustics, and 
my thesis involved making acoustical impulse response measurements in 
rooms, among other things.  A room is going to do horrible things to 
the spectrum of the sound coming from a loudspeaker, and I'm curious 
to see how this test equipment might fix the problem.  What sort of 
test equipment are you talking about?  "Open field" presumably means 
that you want to place the loudspeaker away from walls, the floor, 
etc, and that you use a room that is as dead as possible (or perhaps 
you take the speaker outside).  You play pink noise through it, use a 
microphone that, we hope, is better than the hoped-for response of 
the loudspeaker, and look at the result on a spectrum analyzer.

To give an idea of what the room can do to the sound received at the 
microphone, suppose that we have an ideal speaker that perfectly 
reproduces the signal driving it.  You play a perfectly sharp pulse, 
a delta function, through it.  If this were the only sound received 
by the microphone, your spectrum analyzer would show a flat frequency 
response.  Assume, however, that you get only one early reflection 
off the floor, so that T milliseconds later a second pulse arrives at 
the microphone, attenuated from the first pulse by some factor A.  
Your spectrum analyzer shows the Fourier transform of this signal, 
which (magnitude only) is

H(f) = 1 + A^2 + 2 A cos(2 pi f T).

If A is reasonably large, as it usually is in real life, the spectrum 
you see is far from flat, even though the loudspeaker is perfect.  A 
real room is going to give you all kinds of reflections.  How do you 
fix this sort of problem? 

Rod Price
rprice@physics.att.com

Xref: sparky rec.audio:13074 rec.video:11743
From: chrisc@gold.gvg.tek.com (Chris Christensen)
Newsgroups: rec.audio,rec.video
Subject: Re: Hi-Fi VCR Sound Trouble
Date: 26 Sep 92 20:38:44 GMT
Followup-To: rec.audio
Organization: Grass Valley Group, Grass Valley, CA

The popping sound describe sounds like the tape was clipped on
recording.  Someone else mentioned that duplicators run the levels hot
and that is what I have found also.

As far as the broadcast poping,  I have only heard that very rarely
and I believe it to be an artifact of overmodulation.  It could also be a
mis-alignment in the VCR demodulator. 
-- 
Chris Christensen                  The opinions I express are my own,
chrisc@gold.gvg.tek.com            and sometimes they are wrong!
916-478-3419 FAX 916-478-3887      After all, I *AM* only human.
Newsgroups: rec.audio
From: pestep@convex.com (Pat Estep)
Subject: speaker recommendations needed
Date: Sun, 27 Sep 1992 19:47:38 GMT
Distribution: usa
Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
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.

    Lost my stereo system in the divorce, time to start over.

    With so many speakers out there, I'm looking for some advice as
    to which speakers are worth auditioning.

    My criteria:

        $750-1000 per pair
        good bass (I usually listen to rock)
        amplifier will be an Adcom 535 for now
    
    Please e-mail recommendations to pestep@convex.com.

    thanks,
-- 
Pat Estep                               System Integration and Support
Convex Computer Corporation
3000 Waterview Parkway                  Email: pestep@convex.com
Richardson, TX 75080                    Voice: (214) 497-4814
From: hedrick@geneva.rutgers.edu (Charles Hedrick)
Newsgroups: rec.audio
Subject: Re: Mini Disk vs. DCC checklist - what have I got wrong ?
Date: 5 Oct 92 02:33:51 GMT
Organization: Rutgers Univ., New Brunswick, N.J.

I ran into a very interesting statement in the most recent issue of
"Audio".  They say that sony plans to charge more for 74 min MD disks
than 60 min MD disks, but that the only difference between them is
a code in the leadin area saying how much may be recorded on it.
They report that in the presentation to press, reactions were rather
negative towards this.
From: msingh@silver.ucs.indiana.edu (The Supreme Commander)
Newsgroups: rec.audio
Subject: Re: Sony STR AV1070 ... SUMMARY
Date: 2 Oct 92 16:13:48 GMT
Article-I.D.: usenet.BvI530.CtK
Organization: Indiana University


>If you are an owner of one of these units and have not received satisfaction 
>from Sony, please.....
>**** DON'T SELL YOUR UNIT AND PASS OFF YOUR TROUBLES ONTO SOMEONE ELSE!!!!


I am an owner of the first wave of STR-AV1020's. My unit hasn't really
acted strangely on me, however, I am dissatisfied with it's tuner
performance. (A weak complaint in light of all the others) Otherwise,
it works perfectly, albeit with the normal high crossover when in
Phono mode. (But who uses Phone anymore???) I have heard reports that
the second wave of STR-AV1020's have a lot of problems due to an
engineering flaw that was supposed to fix the high crossover problem.

I do however have a complaint with Sony's CDP550 CD player. One day,
this unit refused to recognize any of my CD's, and it's CD numbering
was off the tray number by 2 or more. After turning the unit off and
on a few times I got a strange EC code on the display. One more power
cycle restored it.

I also own a Sony cordless phone, the SPP-120. In it's first year of
life, it acted very strangly. Sometimes it would lock on a channel,
but wouldn't admit it on the display, or it wouldn't find a channel
after a fresh battery had been inserted, and sometime it just wouldn't
ring. Everytime I was on the verge of sending it in for repair, it
fixed itself. For a year and a half now, I have not had anymore
problems. (It *has* been dropped a few times...)

My conclusion is that Sony has poor quality control these days, simply
becuase they churn out new models so quickly. After all, I bought the
new STRAV-1020 the month it came out, and 6 months later (or maybe a
bit more) out came the STRAV-1070 replacement. Now I have to find
another company whose products are visually pleasing and that are of
good quality.

---> Personal tirade about Sony products complete <----


				...Manu


-- 
---------------------------------------------------------------------
The Supreme Commander wishes you a Supreme day. 
I'm a Magic Man, oooh, I got the magic hands, yeah...
Don't mind me, I'm just attempting to dock.
Newsgroups: rec.audio
From: ftsang@Cadence.COM (Frank Tsang)
Subject: B&K AMP/PREAMP FOR SALE
Followup-To: poster
Keywords: AUDIOPHILE EQUIPMENT
Organization: Cadence Design Systems, Inc.
Distribution: na
Date: Tue, 29 Sep 1992 20:50:24 GMT

FOR SALE: Audiophile Amp and Preamp

B&K ST-140 Power Amp.   $350 obo
B&K PRO-5  Pre Amp.     $300 obo

Both mint; original owner;
with original packaging, manuals.
Will deliver within the SF bay area.
-- 
Regards,    + Frank Tsang                   |   ^++^    "__"    +
            + (408)-894-2448 (W)            |  @ oo @  @ .. @   +
Frank       + (510)-791-0658 (H)            |   ([])    (())    +
            + e-mail: ftsang@cadence.com    |   Heeelllloooo    +
From: kmr4@po.CWRU.Edu (Keith M. Ryan)
Newsgroups: rec.audio
Subject: Electronic Parts, Catalog
Date: 26 Sep 1992 13:27:11 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: kmr4@po.CWRU.Edu (Keith M. Ryan)
NNTP-Posting-Host: thor.ins.cwru.edu


	Well, I seems that I have finally got around to learning all the
basics for audio related electronics, active filters, op-amps, transistors,
etc. Now, I need to find a mail order place that sells everything from 
resistors to mosfets. I'm not necessaraly looking for top-grade components,
( ie 0.01% ) but decent, yet not too expensive ones. Radio Shack is out! 
*personal grudge* If anyone knows of a mail-order firm, please e-mail me
their address. 


	Is this were I'm supposed to proclaim that I'll build the world's best
amplifier? :-}
-- 
	" Well, I guess he had it coming..."

	" We all have it coming."

Newsgroups: rec.audio
From: puerile@wam.umd.edu (Mohan R. Ramanathan)
Subject: vandersteen 1b comments requested
Organization: University of Maryland, College Park
Distribution: na
Date: Mon, 5 Oct 1992 14:32:09 GMT


I have the opportunity to purchase a pair of Vandersteen 1b's
used, and I was looking for any comments on these speakers.
What price did you purchase your V 1b's new, and how much
would you (hypothetical) sell them for used? Thanks for
your comments.
					Mo
From: marc@es.ele.tue.nl (Marc Heijligers)
Newsgroups: rec.audio
Subject: Re: MD Price Info
Date: 29 Sep 92 07:38:52 GMT
	<Sep23.174440.77495@yuma.ACNS.ColoState.EDU>
	<1992Sep23.224626.8603@nas.nasa.gov>
Organization: Eindhoven University of Technology, Eindhoven, The Netherlands.
In-reply-to: fineberg@win31.nas.nasa.gov's message of 23 Sep 92 22:46:26 GMT

In article <1992Sep23.224626.8603@nas.nasa.gov> fineberg@win31.nas.nasa.gov (Samuel A. Fineberg) writes:

   Once again, why not buy a DAT.  Its cheaper (for both the blank media and the
   recorder), better sounding, etc. 

I heard an introduction of MD in Amsterdam on the Firato. They recorded a CD
publicly, and let the audience hear the result. 

I immediately could hear 'random hissling' in the higher tones of the music,
which makes MD worse than DCC or DAT in my case. The random access of MD is
nice, and places it in front of DCC, but when it is destroying the sound I
don't want one. 

The MD player was placed on a box, and no one was allowed to touch one. On the
other hand, Philips had a lot of DCC players which everyone could play with. 

I hope Sony can make its promises on December true...

Also  A little joke from Sony. A danser showed us how shock resistance a MD
player is. The MD was connected to the amplifier by a wire. After swinging a
little to hard the wire lost its contact with the MD player, but the music
just went on??!!! :-))))))

Marc
From: fleming@blitzen.SanDiego.NCR.COM (Joe Fleming)
Newsgroups: rec.audio
Subject: Re: Nakamichi Cassette Deck 2 reviews?
Date: 5 Oct 92 15:03:33 GMT
Reply-To: fleming@blitzen.SanDiego.NCR.COM (Joe Fleming)
Organization: NCR Corporation, Rancho Bernardo

In article <BvJ2F5.DFx@news.cso.uiuc.edu> davidric@uxa.cso.uiuc.edu (david ric
 Does anybody own this
>unit and has a testimonial they would like to share? I am also 
>considering a 3 head Sony/Denon. Or is there some fantastic 
>cassette recorder in this price range around ~400.
>
>Then again a DAT would be nice, but then I need one in my car...
>
I have had a Nakamichi Cassette Deck 2 for over a year.  I have been very
pleased - though I don't use cassettes as much as a few years ago.

Joe Fleming
Newsgroups: rec.audio
From: ssr@cypress.com (Bapcha/FPGA)
Subject: Re: Speaker recommendation ($1500/pair)
Organization: Cypress Semiconductor, San Jose, CA
Date: Fri, 2 Oct 1992 14:31:38 GMT

In article <1992Oct01.111513.4722@einoed.in-berlin.de> alh@einoed.in-berlin.de (Adrian Le Hanne) writes:
>Hi,
>i'm looking for a pair of speakers, obviously. I don't want to spend
>more than $1500/$2000 a pair. Speakers, that i already put in a closer
>selection (still have to listen to them, though), are the B&W DM 640 and 
>the Infinity RS60. Other recommendations are appreciated, but keep in mind

Apogee Centaur Minors dude..... best speakers if you cannot afford the
Apogee Stages.....   The minors cost $1200 list (you can get them for
that including the stands and shipping. The stages cost like $2000
dunno if they are available in Europe though.....

-- 
Bapcha - A very bad boy from Cypress Semiconductor
3901 N.  First Strasse
San Jose,  CA 95134, 408-943-2719
From: leconte@irisa.fr (Thierry Leconte bureau AB 302 poste 7294)
Newsgroups: rec.audio
Subject: Recordable CD vs MD and DCC
Date: 1 Oct 92 15:27:19 GMT
Reply-To: leconte@irisa.fr
Organization: IRISA, Rennes, France

There was lots of activities in the past few weeks about MD versus DCC.
But now recordable CD are available, how about recordable CD versus MD ans DCC ?
The media seems largely more expensive but the total compatibility with CD is
really interesting.

---
 ___________________
/_______  _______  /        Thierry LECONTE
       / /      / /            BULL/IRISA
      / /      / /         Campus de Beaulieu
     / /      / /_____     35042 RENNES CEDEX
    /_/      /_______/           FRANCE
email : leconte@irisa.fr   telex : 950473 UNIRISA
phone : 99 84 72 94        fax   : 99 38 38 32 
Newsgroups: rec.audio
From: chrisc@gold.gvg.tek.com (Chris Christensen)
Newsgroups: rec.audio
Subject: Re: Another requested recommendation for a center channel speaker
Keywords: none
Date: 6 Oct 92 20:59:21 GMT
Organization: Grass Valley Group, Grass Valley, CA

In article <1992Oct5.181311.586@sei.cmu.edu> jseiler@sei.cmu.edu 
(Joseph Seiler) writes:
>I need a 5th speaker (center) for the true home theater effect. My fronts are
>a pair of BOSE 4000's and my rears are a pair of BOSE 21's. Please offer as
>many options as possible.

The "true" theater surround system requires equal Left, Center and
Right speakers.

If you want to compromise, then do so with a "made for the architectural
aspects and not for optimum surround effect" speaker. 

The answer to your question is a BOSE 4000.

-- 
Chris Christensen                  The opinions I express are my own,
chrisc@gold.gvg.tek.com            and sometimes they are wrong!
916-478-3419 FAX 916-478-3887      After all, I *AM* only human.
From: resou@darcy.mi.uib.no (Odd Arild Urtveit)
Newsgroups: rec.audio
Subject: Re: Does Bang and Olufsen make good equipment?
Date: 6 Oct 92 10:49:25 GMT
Organization: University of Bergen, Norway

In article <1992Oct5.195353.2700@stortek.com>, v035550@stortek.com (Steve Monroe) writes:
> I have VERY limited knowledge of consumer electronics.
> I have the opportunity to buy a used (but new) Bang & Olufsen
> stereo system.  IS B&O a Danish company that OEMs Japanese 
> stuff or is the stuff actually built in Denmark?  Is it any
> good?  Responses appreciated via email or postings: your choice.
> 
> MANY thanks,
> 
> sjm
  My comment:

B&O has very special design and (here i Norway) a very high price.  Some like it, some hate it.  I don't like it, I once had a B&O stereo receiver.  I think you could get a much better stereo system elswhere for the same ammount of money.

Odd Arild Urtveit.
From: kritchie@donald.cs.umn.edu (Kent C. Ritchie)
Newsgroups: rec.audio
Subject: Re: Satellite Systems
Keywords: speakers satellite systems
Date: 27 Sep 92 15:41:19 GMT
Article-I.D.: news2.1992Sep27.154119.27818
Organization: University of Minnesota, Twin Cities ACM

Take a listen to the Canton satellite system.  They have one of the better
low ends.  The system is a little more expensive than most... probably
around $1000.  M&K make some incredible systems too.  Once again these
are expensive, but the quality is far superior to Bose, Polk, Boston
Acoustics, Cambridge, JBL, Infinity, Klipsh, Cerwin Vega...  All of which
make satellite systems.  Or you can creat your own...  If you have money
I would suggest a Velodyne sub and pair of (someone help me out here!) um...
maybe celestion or... maybe you should keep you Paradims and just get a
sub.  You'll find using larger satellite speakers gives you a fuller sound.
You might find the Cantons to be a bit bright... the use small satellites,
the result is soild bass, and bright highs... but in the middle it is kinda
lacking compared to the M&Ks.  But once again I would put the Cantons over
the rest of the bunch above.  What you should do is find some stores with 
a good return poilcy.  Max your credit card and take a bunch of systems home
and listen day and night for a week...  Your ears will tell you which to buy,
or not to buy at all.

--Kent
From: pcw@flutter.tv.tek.com (Patrick C. Wilkins)
Newsgroups: rec.audio
Subject: Re: Satellite Systems
Date: 29 Sep 92 19:52:30 GMT
Article-I.D.: flutter.PCW.92Sep29125230
Organization: Tektronix TV Products


   >>>In article <1992Sep27.154119.27818@news2.cis.umn.edu>  
   >>>kritchie@donald.cs.umn.edu (Kent C. Ritchie) writes:
   >>>  Or you can creat your own...  If you have money
   >>> I would suggest a Velodyne sub and pair of (someone help me out here!)  
   um...

   >>How about a Velodyne Sub and 2 pairs of B&W Rock Solid Speakers for front  
   >>and rear channel.(one pair costs about $275 in the west coast). I think  
   >>this is a very nice combination.

   >>Tim

   >Or you can try the M and K sub. It is rather expensive around $700 to
   >$800, but I think it is worth it.
   >Bam.

If cost is the main concern.

About a year ago, my brother asked me for help in 
selecting new speakers for his stereo. Because of my 
background in electronics I routinely get questions from 
family and friends about product selection. I told him for 
size versus sound output and quality a sub/sat system was 
hard to beat. We did some shopping and discovered the only 
powered subwoofer available in a low price range was the 
SW100. Intended for movie/TV surround sound it's controls 
allow in to integrate easily with any appropriate 
satellite speaker. With little influence from me my 
brother selected a small two-way speaker from Boston 
Acoustics for the satellites. I can't remember the model 
number but they are very transparent and have a crossover 
point in the middle of the SW100 frequency adjust range. 
For the money the powered Yamaha SW100 combined with the 
satellite speaker of your choice makes an excellent system 
for any kind of music.



--

-------------------------------------------------------------------
    Pat Wilkins II
    A.K.A. Clif
    Email pcw@flutter.tv.tek.com
    Work 503-627-6525

-------------------------------------------------------------------
    Is Deja-vu real or is life just redundant???????
-------------------------------------------------------------------
From: borowski@hpspkla.spk.hp.com (Don T. Borowski)
Date: Mon, 5 Oct 1992 19:25:59 GMT
Subject: Re: Probably a SIMPLE solution...
Organization: Hewlett Packard Company, Spokane, Wa.
Newsgroups: rec.audio

In rec.audio, <MIWHC@CUNYVM.BITNET> writes:

>If I play certain cds' on my JVC cd player through my JVC amplifier with
>built in digital effects, I get high frequency clicks at certain spots on
>the disk out of both speakers. I have reasonable heavy speaker wires hooked
>up to Mission speakers which I assume are in good shape (they are new and
>don't sound screwed up with all of my other disks).
>
>I dont get the click with the headphones, The clicks only sound once the
>cd had been spinning a while. The offending disks are clean with no visible
>scratches. The speaker wires are in phase, the clicks cannot be heard in the
>surround-sound speakers. Turning on and off the effects (reverb, etc) do not
>effect the clicks. I do not get these clicks on the tuner or on the JVC
>cassette-deck. The offending discs click a lot once they have spun for some
>time and my other discs don't even click once.

Do you play the music loud, and is the CD player near the speakers.  If so,
it is possible that the vibrations from the speakers can screw up the tracking
on marginal discs.  If you still get the clicks at low listening levels with
the speakers on, them I'm stumped.


Donald Borowski    WA6OMI    Hewlett-Packard, Spokane Division
"Angels are able to fly because they take themselves so lightly."
                                       -G.K. Chesterton
From: evansmp@uhura.aston.ac.uk (Mark Evans)
Newsgroups: rec.audio
Subject: Re: ReVox A-77 Question
Date: 30 Sep 92 10:08:10 GMT
Organization: Aston University

covingc@ee.tamu.edu (Mouse) writes:
: 
: I recently obtained a ReVox A-77 reel-to-reel, and I would be interested
: in getting some a operation or service manual for it.  Does anyone out
: there have on of these, or an address or phone number for ReVox?

I have a feeling that the company is based in germany.
-- 
-------------------------------------------------------------------------
Mark Evans                                   |evansmp@uhura.aston.ac.uk
+(44) 21 565 1979 (Home)                     |evansmp@cs.aston.ac.uk
+(44) 21 359 6531 x4039 (Office)             |
Newsgroups: rec.audio