HDTenEightyP/NetNews huggingface dataset:
From: BARRON@RHQVM14.VNET.IBM.COM
Date: Wed, 26 Aug 92 07:54:48 EDT
Newsgroups: rec.audio
Subject: Yamaha DSP A-1000
Reply-To: BARRON@RHQVM14.VNET.IBM.COM

Well, I went out and purchased a DSP-A1000, am I happy...yes, I'm delighted.

This is plain and simple a killer box that can not be adequately
described by words.

We have seen many comments on the net, so I won't continue I simply have a
few setup points to make.

1. You MUST use all 7 channels.  At first I tried the mix the front effects
into the front channels option, and it sounded great.  Then I decided to
try all 7 channels...WOW!!! I guess the previous great was really
nothing....This 7 channel mode really adds to the room ambiance that the
box creates.  Surround (movie) information no longer goes behind you.
All surround info literally fills the area around you, but no localization
is possible.

2. A good center channel speaker is a must!!!   I would recommend a good
full size speaker if possible.  I had to settle on the Infinity Video-1
due to setup constraints.

I also found the pre-amp to be clean, and reasonable transparent.  The
controls are simple, etc....

The only option I would like is stereo sub outputs, but thats an esoteric
argument I'd rather stay out of.  I can always use an outboard xover to obtain
this.

Organization: Advantis Network Engineering and Planning
Disclaimer: This reflects the poster's views, not those of Advantis
News-Software: Usenet 3.0
X-X-From: Dave Barron

Newsgroups: rec.audio
From: leem@jpl-devvax.jpl.nasa.gov (Lee Mellinger)
Subject: Re: Help: Yamaha Repair
Organization: Jet Propulsion Laboratory (NASA)
Distribution: usa
Date: Fri, 4 Sep 1992 18:46:26 GMT

In article <22188@galaxy.ucr.edu> gumby@ucrmath.ucr.edu (john donahue) writes:
:I have a Yamaha A-720 (circa 1986) amplifier which recently died on me. I
:was wondering if anyone knew of a 1-800 number I could call which could
:tell me of authorized Yamaha dealers in my area (hopefully ones that might
:offer a FREE estimate).
:-- John

Call 1-800-4YAMAHA


Lee
Newsgroups: rec.audio
From: dave@news.ccutah.edu (dave martin)
Subject: Re: THX migration - many questions
Organization: University of Utah Computer Center
X-Newsreader: Tin 1.1 PL3
Date: Tue, 25 Aug 92 19:59:47 GMT

j_adams@hpfcbig.SDE.HP.COM (John Adams) writes:
: In rec.audio, cauble@cbnewsj.cb.att.com (Troy Cauble) writes:
: 
: >> THX is **NOT** a technology, or even a standard.  It is
: >> a **CERTIFICATION PROCESS**.  THX is a trademark that
: >> can only be applied after the certification process 
: >> has taken place (and fees paid to Lucas :-).
: 
: >So what's your point?  It takes some technology to implement
: >the decoding to pass the certification, yes?
: 
: THX has ABSOLULTY NOTHING to do with technology or decoding.  It had
: NOTHING to do with Dolby Surround or Pro Logic.  What it is is a
: certification for a minimal level of quality in a sound reproduction
: system.
..
: 
: >Dolby Pro exploded with a chip set.  (Well, that's my impression
: >anyway -- and I got it reading the net 8)  It seems like a logical
: >progression to put the THX decoding on one too, IF THERE'S A MARKET.
: 
: 
: NO NO NO! There is no THX decoding.  The decoding IS Dolby Pro logic.
: That's is what, in this case, THX has approved!
: John Adams

Yes, but the decoding is required to be more accurate than it usually is
in cheaper receivers, also decorrelation and timbre matching and the 80hz
24db/octave crossover are required.  These are things you are very unlikely
to find in non THX equipment.  You cant just go "here is my decoder and
$100000.00, can I put THX on it now?"  It is conceivable that someone will
eventually put all of this on a chip.  Yes, its also marketing, just like
a theater with stereo is marketing vs a theater with mono.  Just because
its marketed doesnt mean its less desirable or only as desirable.  Its also
possible that someone will build a decoder that meets all these requirements
and not bother to get it certified (I wonder how they'll advertise it?) does
anyone know what Lucasfilm charges for certification of either theaters or
home equipment?

Hopefully the Dolby AC-3 system Lucasfilm also likes will become reality (or
some better system) and we'll get the 5.1 (.1 = subwoofer) descreet channels
in theaters and in HDTV and not need decoders or the matrix at all.

dave@csulx.weber.edu
DMARTIN@CC.WEBER.EDU
From: cj414491@LANCE.ColoState.Edu (Corey D. Jackson)
Newsgroups: rec.audio,rec.high-end.audio
Subject: Re-Tubing DYNA PAS Preamp?
Summary: DYNA tubes golden-dragon
Keywords: DYNA PAS retube?
Date: 3 Sep 92 20:34:22 GMT
Organization: Colorado State University Engineering College

I've got a DYNA PAS preamp which is starting to show its age with
non-linear sounding tone and balance.  The volume control also
does not work like it used to.  I asked a guy at the local equipment-
phile store about this.  He said the tubes were "tired" and that I
should retube the preamp with "Golden Dragon" (?) tubes.  First of
all, how many tubes do I have and how much would this cost me?
Is there some supplier of these tubes that mail orders or would 
distribute to my local electronics supplier?  Thanks in advance
for all help!

___________________________________________________________________________
Corey D. Jackson                My employer doesn't pay me enough to think! 
cj414491@longs.LANCE.ColoState.Edu      Colorado State U:  Fort Collins, CO
From: hqu@vax5.cit.cornell.edu
Newsgroups: rec.audio
Subject: question about speaker building
Date: 27 Aug 92 16:33:31 EDT
Distribution: rec
Organization: Cornell University

Questions about building speakers.

     1.  Are there any good speaker building book available?
     2.  What are the names of mail order places to get the actual
         speakers from ?


Thanks
Corey
From: SXK129@psuvm.psu.edu (Spaceman Spiff)
Newsgroups: rec.audio
Subject: Wanted: Info about Wholesale Connection
Date: 1 Sep 92 20:20:43 GMT
Organization: Penn State University

I'm thinking about buying some some stuff from the Wholesale Connection (63-48,
 108th St., Forest Hills, NY 11375). Has anyone dealt with them before. Are
they reliable? I got their phone number (1-718-997-6644) from Stereo Review,
so I'm assuming that they're o.k. But, before entrusting them with a few
hundreds of my hard-earned bucks, I'd like to have some reassurance about
their credentials. Any help will be highly appreciated.
Thanx,
Sunil
sxk129@psuvm.psu.edu
Newsgroups: rec.audio
From: znpt01@trc.amoco.com (Norman P. Tracy)
Subject: Re: Green Pens & CDs (was Re: Very expensive cables)
Originator: znpt01@gpss43
Organization: Amoco Production Company, Tulsa Research
Date: Fri, 4 Sep 1992 13:40:22 GMT


In article <1992Sep3.180204.12249@wdl.loral.com>, trw@spl1.spl.loral.com (Tim R Witort) writes:
> In article <JEFF.92Sep3085130@dsp.sps.mot.com>, jeff@dsp.sps.mot.com (Jeff Enderwick) writes:
> |> what is a "green pen" for a CD ?
> 
>   Well, no smiley on the end, so I'll assume you're serious...
> 
>   Some people claim that drawing lines on the non-label side of
> their CDs with a green marking pen make the CDs sound better.
> 
> -- Tim

The pen is applied to the EDGE of the CD, NOT the "non-label" side.  The non-label
side contains the data, I would not mark on it!  I have never tried this tweek,
taking the same stance I do with LPs that nothing with unknown long term effects
touchs the disk.  If you must try it use a water based pen to try & avoid chemical
reactions with the disk.

Norman
Newsgroups: rec.audio
From: shiv@bnr.ca (Shiv Naimpally)
Subject: Re: HSU Research Sub woofers
Keywords: woofers
Reply-To: shiv@bnr.ca (Shiv Naimpally)
Organization: Bell-Northern Research Ltd.
Date: Thu, 27 Aug 92 18:06:23 GMT

I don't beleive anything in reviews from Stereo Review/Audio. How
many times have you heard the phrase 'compares favourably to speakers
costing 2 or 3 times as much' ? 

Many companies making surround speakers have subwoofers available,
eg. Yamaha, Pioneer, etc.. It would be best if you can stick to one
manufacturer since you know the sub is matched for the speakers.
If the efficiency of the sub and the satelites is different, you'll
send up with too much or too little bass.

Check the Velodyne powered subs, I've heard them and they are very good.
From: henken@ocf.berkeley.edu (Matthew J. Henken)
Newsgroups: rec.audio
Subject: HELP NEEDED:  Room treatment
Date: 28 Aug 1992 22:06:47 GMT
Organization: U. C. Berkeley Open Computing Facility
Distribution: usa
NNTP-Posting-Host: headcrash.berkeley.edu

I am in the world's most accoustically live room.  I am just moving in,
and need to find a way to make it more acoustically livable (paradoxically,
this is accomplished through making the room more "dead").  As you may have
seen in my last post, my room is 12 by 17 with 9-1/2 foot ceilings.  A carpet
and pad cover almost every inch of the wood flooring.  The walls are completely
and absolutely bare save for some white paint.  There is a bay window along one of the short walls.  What can I do (within a limited budget) to deaden the
room, to get rid of the echo?

Any help will be most strenuously appreciated.

Matthew J. Henken
henken@ocf.berkeley.edu

P.S.  The room is comfortable to talk in, to watch television in, but I fear
the "zippyness" that comes out when I clap my hands or make other sudden,
brief noises will come out when my system is set up this weekend.
Xref: sparky rec.audio:11788 misc.consumers:15619
From: jpl1@Ra.MsState.Edu (John Patrick Lestrade)
Newsgroups: rec.audio,misc.consumers
Subject: Re: DAK mail order
Keywords: dak mail order safe
Date: 25 Aug 92 20:02:38 GMT
Organization: Mississippi State University

what does IMHO stand for?  I Must Have Olives?  Idiosyncracy Must Hamper
Obfuscation?  
patrick

--
John Patrick Lestrade, PhD        
cnesta::lestrade
jpl1@ra.msstate.edu
Newsgroups: rec.audio
From: interpol@casbah.acns.nwu.edu (Interpol)
Subject: Re: New Sony 696HF VCR's for $329!
Organization: Northwestern University, Evanston Illinois.
Date: Wed, 26 Aug 1992 00:33:11 GMT

In article <1992Aug25.185730.3119@usenet.ins.cwru.edu> aj008@cleveland.Freenet.Edu (Aaron M. Barnes) writes:
>
>Thats right - 696HF for $329.
>All you have to do is send your requset for information to this 
>gentleman:
>
[address deleted]
>
>He told me about it,but did not specify which dealer.
>
>I am sure he would appreciate any and all responses.
>
>Thanks.
>-- 
>Aaron Barnes
>aj008@cleveland.freenet.edu
>Part 15 will take over broadcasting one frequency at a time!
>Howard Phillips for President!


The above posting is a prank.  Mr Barnes posted my email address above,
completely without my permission and I had no knowledge of this.  His systems
administrator has been notified of this matter.

Please, no more mail on this subject.  Thanks.
Newsgroups: rec.audio
From: bbs.hew@tsoft.sf-bay.org (Harold Wheaton)
Subject: How are speaker impedences specified?
Organization: The TSoft BBS and Public Access Unix, +1 415 969 8238
Date: Sun, 30 Aug 1992 02:29:28 GMT

Howdy all,

I am close to getting a new receiver (most likely Technics SA-GX130 or 
SA-GX330) and as I studied the receiver and talked to the salesperson,
I concluded the receiver does not want speakers below 6 ohms and really 
wants 8 ohm speakers.

I was wondering how exactly one can measure the so-called "impedence" of 
a speaker.  My general understanding is that impedence is a complex 
number that changes with frequency.  However, I always see the impedence 
written as a single number with no frequency reference.  How is this 
single real number obtained?  Is it something like the absolute value of 
the complex impedence at 1 Khz?

And finally, I notice (by measurement) that the absolute value of the 
impedence varies from 2 ohms to 6.7 ohms at various frequencies and the 
resistance (impedence at DC) is 3.8 ohms.  Should I be concerned about 
this range?  (I'll admit, these speakers of mine were bought as surplus 
and put together by my dad and I.  It's possible they're a bit "funny" 
yet they've always sounded great to me.)

Thanks for the help!
                                -Harold


--
Harold Wheaton (bbs.hew@tsoft.sf-bay.org)
From: bruno@broue.rot.qc.ca (Bruno Majewski)
Newsgroups: rec.audio
Subject: NHT vs. Energy: a summary
Date: 4 Sep 92 13:38:29 GMT
Distribution: world
Organization: Groupe de Recherche Operationnelle en Telecommunication (ROT)
X-Newsreader: Tin 1.1 PL4


Hello out there,

this is to summarise (sp?) very briefly the responses I had concerning
NHT and Energy loudspeakers.

First, Energy equipment don't seem well known in the States, judging from
the feedback I got. There was a mention about a "Pro 22" series (same as
the actuall "22" series sold in Canada? ), which have impressed one
person who's name eludes me at the moment.

Second, NHT speakers, while they did not generate extatic response, seem
to get the "not junk" evaluation. Only one person had some bad things to
say about them. 
Or in other words, it did not get neither "garbage" or "stellar performer"
status (save one negative exception).

Thanks to all that answered - I tried to ACK all the e-mail, but it bounced
most of the time (I don't remember why, except for people on BITnet...)


----------------------+-----------------------------------------------------+
Bruno Majewski        | Groupe de Recherche Operationnelle en               |
                      |   Telecommunication (R.O.T.)                        |
bruno@broue.rot.qc.ca +-----------------------------------------------------+
                      | also @: Synerlogic Inc, div. of Andersen Consulting |
There is good beer,   |         Voice: (514) 685-7575                       |
& there is bad beer;  |         FAX  : (514) 685-7692                       |
don't confuse them!   |                                                     |
----------------------+-----------------------------------------------------+
From: kenyee@ksr.com (Ken Yee)
Newsgroups: rec.audio
Subject: Re: HSU Research Sub woofers
Keywords: woofers
Date: 1 Sep 92 12:53:18 EDT

lstowell@pyrnova.mis.pyramid.com (Lon Stowell) writes  (Carlton Wu is >>):
>     Hopefully you've awakened from skipping "Reading and
>     Comprehension 101--Remedial" by now.   
>>I really don't get it.  
>     That's putting it pretty accurately and mildly.
>>In the future, if any of you are going to make product comparisons, please be
>>fair about it.  Preconceived bias can only serve to skew the outcome.
>>
>    I presume the fact that you own the HSU's makes you totally
>    unbiased?   Riiiiiiigggggggggghhhhhhhhhhht.

  Could you two please keep the flaming down?  This is getting close to name
  calling.  I much prefer Dick Pierce's flaming...at least he'll back up what
  he has to say with relevant informative details

  
>>Furthermore, I'd be interested to know
>>where you auditioned the Hsu's (available ONLY factory-direct) and the others.
>    Turning your challenge around, have YOU actually listened to the
>    M&K and Velodyne subwoofers and the HSU, or are you just
>    gatemouthing?   

  Lon, is this a NO answer?


>   Thanks for making my point....if you grab your local Velodyne or
>   M&K dealer by the wallet, you can get a GOOD one of their models
>   for about that amount of money.  That are flat, with low
>   distortion, down below 20 Hz.   And louder than the HSU's will
>   tolerate.  
>   [We won't mention the facts about whether you NEED a lot of deep
>   bass and whether it need track midrange power accurately....you
>   can read Fletcher Munson curves, hopefully...]   

  I'm thinking about getting a good sub for home theatre.  I was thinking
  about the Hsu SW10 because I think I can start off with just one to
  see if it has enough bass; I could drive it with one side of the amp
  I'm using for the center channel.  What concerns me most about the Hsu
  is that the literature says it overloads below 15Hz and to not play cannon
  shots; special effects from movies may have frequencies this low.
  I haven't looked at traditional good subs (Muse and Velodyne, e.g.)
  because clean 20Hz ones cost at least $1000, though powered.  Are there
  any that do this for less than $1000 (preferably much less)?
  Can we get a bit more constructive with this thread topic?

 ken
From: henken@ocf.berkeley.edu (Matthew J. Henken)
Newsgroups: rec.audio
Subject: Cables: Mix or Match?
Date: 4 Sep 1992 06:26:45 GMT
Organization: U. C. Berkeley Open Computing Facility
Distribution: world
NNTP-Posting-Host: headcrash.berkeley.edu

A quote from the April 1992 Stereophile:

"AB points out that mixing'n'matching interconnects and speaker cables is a
well-worn route to sonic disappointment.  Always use interconnects and speaker
cables from the same manufacturers, is his advice."

What do you all think?  To me, it doesn't seem to make much sense, but it
does make as much sense as some other stuff people I respect swear by, so
I figured I should ask those of you with an opinion on this.

So, what's the scoop?  Should you get interconnects and speaker cables from the
same company?  Why or why not?

Thanks,
Matthew J. Henken
henken@ocf.berkeley.edu
From: what@athena.mit.edu (Scott R. Velazquez)
Newsgroups: rec.audio
Subject: Re: Bose Acoustic Cannon
Date: 1 Sep 92 18:49:19 GMT
Organization: Massachusetts Institute of Technology

I took Bose's class, and if I recall correctly, the "magic ratio" for the
front and back tubes of the "Acoustic Cannon" is simply 3:1 (I'll check my 
notes to make sure), with the speaker mounted at that junction.  I was 
thinking about making one myself, so I'd be interested to hear how it comes 
out if you decide to give it a try.

--Scott R. Velazquez, MIT EE '93
From: msf@skaro.as.arizona.edu (Michael Fulbright)
Newsgroups: rec.audio
Subject: What is this 18 bit D/A and 1 bit(!) D/A business?
Date: 1 Sep 92 19:41:04 GMT
Distribution: na
Organization: University of Arizona UNIX Users Group

I hope this question is appropriate for this group -

 I was in the store the other day looking at CD players and AIWA had a
model sporting a '1 bit D/A' converter. Does this mean it has the sound
quality of the speaker in an IBM PC?!? And another model had an 18 bit D/A
converter. I thought CDs stored 16 bits, so do they just make up the last
two? I think I can understand how oversampling helps, but I dont see how
two more bits can help. Please enlighten me!

michael fulbright
msf@skaro.as.arizona.edu
Newsgroups: rec.audio,rec.video
From: shantanu@poseidon.oakhill.uucp (Shantanu Ganguly)
Subject: Re: A/V Prologic Receivers--FULL SUMMARY! [LONG]
Organization: SPS CAD, Motorola Inc., Austin, Texas.
Date: 26 Aug 92 12:55:21

In article <1992Aug25.213414.14016%jim.uucp@wupost.wustl.edu> mike%jim.uucp@wupost.wustl.edu (Mike Suter) writes:

   Onkyo
   -----------------------------------------------------------------------
   TX-SV70PRO	-- low price: $589  (85w/chan main and center, 35w/rear)
	   "clean look".  Pre-amp outs for all channels (incl. subwoofer).
	   Learning remote.


Some of the other features that I like in the 70pro:

a) Multi room capability, and you can control the receiver and
components made by other manufacturers from another room using the
programmable remote (need to buy transmitter and receiver).
b) Simul-source (hear two different programs in two rooms at the
   same time).
c) Record a program, and hear/watch something else.
d) Direct access tuning for am/fm (punch in the frequency).

Things I don't like :
a) The design of the universal remote is ergonomically very poor
   (millions of tiny buttons of the same size).
b) Doesn't handle funky speakers, the rears have to be 8 ohm or more,
   the front has to be 6 ohm or more.
--

Shantanu Ganguly
Somerset (Motorola) - Power PC Project

phone : (512) 795-7146                  Motorola Inc, Mail Drop OE 513
fax   : (512) 795-7511                  6501 William Cannon Drive W.
                                        Austin TX 78735-8598
email : shantanu%ibmoto.com@oakhill.sps.mot.com
Newsgroups: rec.audio

In rec.audio, kurts@hpnmdla.sr.hp.com (Kurt Strain) writes:



>   You are wrong.  50 pound interconnects are rather like green pens for CDs. 
>   If you bought 40 pound interconnects you are smart, but 50 is gullible.

Wait a minute, what was I thinking?  It's 40 pound interconnects that are
for gullible people.  Damn, or was it 45 pounds?  I'll have to look it up.
Newsgroups: rec.audio
From: shiv@bnr.ca (Shiv Naimpally)
Subject: Re: Acoustic studio monitors?
Reply-To: shiv@bnr.ca (Shiv Naimpally)
Organization: Bell-Northern Research Ltd.
Date: Mon, 31 Aug 92 17:51:34 GMT

Thats amazing ! We have the same scam running in Ottawa. These guys
go around in a van (they even have valid vendor's permit to sell out
of the van) and give the impression that they have 'hot' speakers they
want to sell cheap. Even the name is the same 'Acoustic Studio Monitors' !
A friend was approached once and called the cops thinking the speakers
were hot and was told they were legit !

For $200 you could have got some used speakers that will blow the 
transducers off of your Acoustic Studio Monitors !
From: chrisc@gold.gvg.tek.com (Chris Christensen)
Newsgroups: rec.audio
Subject: Re: Mods for Radio Shack M7 speakers
Date: 4 Sep 92 17:55:40 GMT
Organization: Grass Valley Group, Grass Valley, CA

In article <on.715511122@base> on@us.oracle.com (On G. Paradise) writes:

>The guy that designed this speaker must be deaf.  The woofer (if you
>call a 4" speaker a woofer) has no crossover.  From the tweeter
>crossover capacitor (4.7uF) it seems that the crossover point is near
>3.5 kHz. Inserting a 0.4mH inductor in series with the woofer (6
>dB/octave at 3.5 kHz) improves the sound considerably: much cleaner
>midrange and deeper bass.

It is *not* uncommon for speaker manufacturers to eliminate the
crossover component of the LF driver.  The LF driver usually rolls of
in HF response.

I believe your insertion of the inductor is a step in the right
direction.  

I have seen other articles that also insert Zobels on the woofer as
well as painting the woofer cone to either stiffen it or increase it's
mass I don't remember which article was doing which!

If I wanted to spend some time on the sets that I have I would put in
a 18 dB per oct xover and Zobel's for the LF and HF driver as
necessary.  Stiffening the cone with some sort of material may be
useful in helping control cone break-up.

But since I only use the M7's that I have for effects speakers in
theater sound designs I am satisfied with their sound.......

>Now if only I find the time to attenuate the tweeters a little...
>I have missed the discussion, so please e-mail what you get.

Why don't you try a resistor?


-- 
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: root@Ingres.COM (Operator)
Subject: "Mission 707" Speakers
Summary: How do they compare with latest types?
Reply-To: mossj@Ingres.COM (Operator)
Organization: Ask Computer Systems Inc., Ingres Division, Alameda CA 94501
Date: 1 Sep 92 13:11:29 GMT

Does anyone out there own MISSION 707 speakers? 
Have you updated them to a better pair?

I would be interested to know how they compare with speakers that have been produced in the last year or so. I bought mine about 5 years ago and while I get a great sound from them I have some money to upgade them. I like lots of good tightbase and soul to my music.

My present system is :

			Nakamichi CD3 compact disk
			Musical Fidelity Pre and Power Amp(The "Typhoon")
			Van Den Hal speaker cable
			Audio Quest Ruby interconnects
			Mission 707 speakers on Target stands.

Thanks,

Jonathan
========

		PS.
			Always listen to your hifi on an empty stomach,
			you'll get better BASE !!!!


Newsgroups: rec.audio