HDTenEightyP/NetNews huggingface dataset:
From: jim@thor.albany.edu (SCHLEMMER JAMES A)
Subject: Re: 6th Ave. Electronics--OPINIONS?
Organization: State University of New York at Albany
Date: Mon, 17 Aug 92 18:59:29 GMT

In article <16e699INN4qn@agate.berkeley.edu> henken@ocf.berkeley.edu
(Matthew J. Henken) writes:

>With all of the discussion of J & R Electronics, I find myself in need of
>an opinion of another mail-order store:  6th Avenue Electronics City.

I just got finished composing a post that was entirely independant of this
inquiry.  Since it's entirely appropriate, I'll post it as a follow up to 
Matthew's post:

Well, I don't know why I keep putting myself through this but I just called
6th Ave. Electronics again looking for information on a "call" (for price)
item.  It was in reference to their full page ad in the Sept. 92 
issue (current) of Stereo Review.  The item was the Sony TCK-690 cassette
deck.  Here's a description of my experience:

o 1-800 number didn't work so I had to call their toll number.  Nice touch.

o Got a phone menu, which I don't really mind.  Pressed "1" for home audio.

o Phone rang a few times...
  6A : "Yeah?"
  Me : "Hi, I'm looking for a price on the Sony TCK-690 cassette deck."
  6A : "Hold on."

o Switches me with no information as to where I'm going.

o Phone rang 7 or so times...
  6A : "Hello"
  Me : "Hi, I'm looking for a price on the Sony TCK-690 cassette deck."
  6A : "Where you calling from?"
  Me : "Albany"
  6A : "We don't give out prices over the phone.  You can call mail order
	if you want..."
  Me : "I thought that's what I *was* calling."
  6A : "Yeah, well they won't give you a price either, but I'll connect you."

o Phone rang a few times...
  6A : "Home audio."
  Me : "Is this mail order?"
  6A : "Yeah."
  Me : "Hi, I'm looking for a price on the Sony TCK-690 cassette deck."
  6A : "Where you calling from?"
  Me : "Albany"
  6A : "What are you looking for?"
  Me : "A price on the Sony TCK-690 cassette deck."
  6A : "No, we don't have that.  Was there an other deck you wanted?"
  Me : "Well, no, but your add said..."
  "Click"

One thing I'll say for them: their phone manner is consistant with the last time
(~3 years ago) I called.  If you don't know exactly what you want and have
your credit card number ready, they literally hang up on you.  Having grown up
outside of NYC I've always thought I was thicker skinned when it came to this
style of human interaction but it always gets my blood boiling.  I hate them.
What I can't figure out is these little "award stamps" on their ad saying
"1991 Best Retail Marketing, Dealerscope Magazine" and "1992 Electronic
Video Retailer Of The Year, Hampton International".  *My* endorsements would
read more like "1991 Don Rickles Award for Excellence In Customer Service" or 
"1992 Bait & Switch Retailer Of The Year" (I've had a more concrete B&S 
experience with them in the past).  

Also, the vast majority of their home audio components are accompanied by an
asterisk which translates to "Product not authorized & come (sic) with 1-year
6th Avenue Electronics warranty."  Makes one wonder what shade of gray these
things are.

Sorry about all the bile,

Jim


Newsgroups: rec.audio
From: freedmanm@woods.ulowell.edu
Subject: Re: Comments on B & W 804 Matrix needede
Organization: University of Lowell
Date: Fri, 14 Aug 1992 19:13:08 GMT

In article <sikorsky.713746784@ee.ualberta.ca>, sikorsky@ee.ualberta.ca (Mike Sikorsky) writes:
> I'm considering the purchase of a pair of 804 matrix speakers, and would
> appreciate good/bad comments on them from anyone.
> 
> From what I've been told, they are meant as economical 801's...with a very
> nice response...is this true?
> 
> Just what kind of $$$ should I be expecting to pay?


The Matrix 804s are AWESOME... But, save yourself some bucks and get the 
B&W DM640's... These have the execat same drivers and crossover, just not in
a matrix enclosure... It is also a little more efficient.  I own the 630's
which I actually liked better than the 640s... 
		Just a thought.			mike.
Newsgroups: rec.audio
From: chrisk@hercules.esd.sgi.com (Chris Kotsiopoulos)
Newsgroups: rec.audio
Subject: Re: DAK's $149 Subwoofer
Date: 21 Aug 92 20:01:45 GMT
Organization: Silicon Graphics, Inc.

I have been using DAK's $149 dbx subwoofer with a 150 watt A/V receiver.
Your worries about running out of power are not necessarily true, because
it takes less power from the amp to deliver the same amount of bass power
due to the increased efficiency of the subwoofer over the woofer in my 
standard speakers. I find that my amp runs cooler now that it has a subwoofer
to shake the room with. I am not even using a sepatate amp for the sub;
I use the built-in crossover. IMHO, It's definitely a Best Buy.

++++++++++++++++++++++++++++++++++++++++++++++
     Chris Kotsiopoulos, MTS
     Casa de Hardware                    
     Modular Systems Division                   
     Silicon Graphics, Inc., Mountain View, CA  
     If my cube is rocking, don't bother knocking!
++++++++++++++++++++++++++++++++++++++++++++++
From: dav@crosfield.co.uk (david frith)
Newsgroups: rec.audio
Subject: Re: class D power amp
Date: 14 Aug 92 07:51:29 GMT
Organization: Crosfield Electronics, Hemel Hempstead, United Kingdom.

In article <palane.713414960@pv7428.vincent.iastate.edu> palane@iastate.edu (Paul A. Lane) writes:
>In <1992Aug9.234948.3788@ccu1.aukuni.ac.nz> stuartw@ccu1.aukuni.ac.nz (Stuart Woolford) writes:
>
>>I am considering building a class D power amp with the following specs:
>
>I have a feeling I'm not the only one with this question:
>
>What the heck is class D? (Excluding Stereophile's rating list)
>
>Class A is full power all the time
>Class B is power as needed
>Class A/B is a combination of the two
>
>So what is Class D? (And is there a Class C?)
>
>Paul A. Lane

Class C is where the output devices conduct for only part of the cycle ie
120 degrees (instead of 180 degrees in Class B) and is commonly used in RF 
amplifiers.

Class D is where a pulse width modulation technique is used at some
frequency way above the maximum amplified frequency and the modulating
frequency filtered out from the output signal. The output devices are
alternately saturated then cut-off supposedly resulting in low power
dissipation in the output stage. I've not seen a class D design for audio
and would be surprised if it achieved as low distortion as can be had with
class A (or class B) designs.

There is also a class E but I can't remember what it is.
-- 
                                              Those that search for God
David Frith           Crosfield Electronics   at the 11th hour may find
dav@crosfield.co.uk   +44 442 230000 X:3243   that they die at 10.30.
From: mbk@lyapunov.ucsd.edu (Matt Kennel)
Newsgroups: rec.audio
Subject: Re: Sony Mini-Disc Questions/Debate
Date: 13 Aug 1992 03:13:59 GMT
Organization: Institute For Nonlinear Science, UCSD
NNTP-Posting-Host: lyapunov.ucsd.edu
X-Newsreader: Tin 1.1 PL3

langrlld@rtsg.mot.com (Daniel J. Langrill) writes:
: fox@cs.nyu.edu (David Fox) writes:
: 
: >In article <7490214@hpfcso.FC.HP.COM> mike-b@hpfcso.FC.HP.COM (Michael Bishop) writes:
: 
: >   How does the rest of the net feel about the DCC vs Mini-disc issue?
: >   Does anyone think that DCC is inherently superior to mini-disc?  If so,
: >   why?
: 
: I can't say that I have hard facts to support my belief, but I think that
: DCC, inherently better or not, is going to make a bigger splash in the 
: marketplace than MD will.  Being backwards compatible with cassettes is a
: big plus to a lot of consumers.
: 
: The one thing that I do find really cool about MD, though, is the fact that it
: buffers its data before sending it out.

Also, you can re-record over a track, and have the new timing be longer
than the old, without cutting off the next song, or you can record a
shorter track, without a large blank spot.

It does this by allocating "blocks" in the conventional way, as in 
computer file systems.  The buffer allows for seeking while maintaining
continous playback.

--
-Matt Kennel  		mbk@inls1.ucsd.edu
-Institute for Nonlinear Science, University of California, San Diego
Newsgroups: rec.audio
From: genghis@uiuc.edu (Tim Elliott)
Subject: Re: Just How Stupid Am I, Anyway?
Originator: tim@uxa.cso.uiuc.edu
Reply-To: genghis@uiuc.edu (Tim Elliott)
Organization: UIUC Computing Services Office
Date: Sat, 15 Aug 1992 18:06:01 GMT

glad@Csli.Stanford.EDU (Clayton Glad) writes:

>I've been using a theme song for my weekly radio show, playing about
>1 minute of it off the vinyl.  It's just now occurring to me that
>this may not be the wisest thing to do with a record that's more or
>less irreplaceable.  I haven't wanted to put it on tape for 
>reasons of studio logistics.

>Am I in deep denial?  Will I trash this disk by playing it weekly
>with styli of variable quality?

cart it up!

//tim
-- 
  | tim elliott                                          /~~~| /~~~~~\ |~~~~~~/
  | genghis@uiuc.edu               25 Years and         `~|  ||  /~\  |`---  /
  | "C'mon, Steve..Get It!"        Still Rockin'... WPGU  |  ||  \_/  Rocks!/
  `-------------------------------------------------------|__|-\_____/--/__/---
Newsgroups: rec.audio
From: bower@pecan.cns.udel.edu (Tyson Bower)
Subject: Re: Looking for Surround Sound Emulation
Keywords: Stereo, Surround Sound
Organization: University of Delaware, Newark
Distribution: na 
Date: Sun, 16 Aug 1992 18:35:40 GMT

The way I saw it went something like this...

fl = front left, fr = front right
rl = rear left,  rr = rear right


                      +rl-_________________-rr+
                      |          |            |             
                      |          |            |                
                      |      var resis        |                      
                      |          |            |                    
                      |          |            |                 
                      +fl-_______/  _______-fr+                      
                      |         |   |         |                
                      |         |   |         |           
                      |_______+l-   -r+_______| 
                                 amp

It doesn't matter whether the variable resistor is connected to the
negative of the left or the right.  This assumes that your amp has 
common negative terminals.  If it doesn't (many bridgeable amps are
this way) you'll cook your amp if you try to do this.

A few other drawbacks of this circuit:
- It doesn't provide any delay.  You'll need to place your rear speakers
  10 to 15 feet behind you to get the proper effect.
- It doesn't filter out the high frequencies, or apply Dolby noise
  reduction to the rear channel.
- It, in effect, wires your front and rear speakers together in
  parallel.  If both are of the low impedance variety, you may present
  an unpleasantly small load to your amplifier.  (Another good way
  to cook it.  8-)
From: news@ut-emx.uucp (news)
Newsgroups: rec.audio
Subject: 4 ohm speakers ok? 8 ohm recommended.
Keywords: speakers
Date: 13 Aug 92 13:38:31 GMT
Reply-To: avsoft!wes@cs.utexas.edu
Organization: The University of Texas at Austin, Austin, Texas

I have a Technics SA-GX710 and would like to use 4 ohm speakers as the  
surround speakers. Technics says to use only 8 ohm speakers for surround  
(4 ohm is ok for the front). What bad effects, if any, would doing this  
have on my receiver, speakers or sound quality? Has anyone tried this with  
a Technics SA-GX710?

--
Wes Smith
ArisSoft Development Corp.
9513 Burnet Rd. Suite 206
Austin TX, 78758
(512) 836-1232
avsoft!wes@cs.utexas.edu	(NeXTmail ok)
wsmith@cs.utexas.edu
Xref: sparky rec.audio:11686 sci.electronics:14645
From: gkwan@balboa.eng.uci.edu (Greg Kwan)
Subject: Re: Group purchase: Burr-Brown OPA604, OPA2604 op-amps
Newsgroups: rec.audio,sci.electronics
Organization: University of California, Irvine
Date: 20 Aug 92 18:49:59 GMT

In article <a6b5d5de@snulbug.mtview.ca.us> dplatt@snulbug.mtview.ca.us writes:
>I got a note from Greg Kwan, asking whether I'd be willing to include
>other Burr-Brown parts in the group purchase I mentioned a couple of
>days ago.  Specifically, Greg is interested in the PCM56P 16-bit DAC,
>and suggested that other people might also be interested in this DAC.

_Very_ kind of Dave to offer to include others.

For those who may have forgotten, the PCM56P is the DAC that pops
right into the HC16 Evaluation board (from the HC16 Toolkit) and
allows for analog signals to be output. 

I called up Burr-Brown and got the following pricing:
 1-24:$14.36
25-49: 12.64
50-99: 11.13
 100+:  5.30

I'm personally not in a big rush to get these parts and will probably
order two (meets the $25 min order) myself unless there is enough in-
terest to get the 100+ pricing (or I may wait until I'm employed and
go the sample route :-).

greg
gkwan@balboa.eng.uci.edu
From: romain@salt.eng.pyramid.com (Romain Kang)
Newsgroups: rec.audio
Subject: Re: Math problem - pitch control
Date: 21 Aug 92 01:21:54 GMT
Reply-To: romain@pyramid.com
Distribution: na
Organization: Pyramid Technology Corp, San Jose, CA
NNTP-Posting-Host: salt.eng.pyramid.com

In <1992Aug20.124103.2066@seada.com> sue@snafu.seada.com (Sue Raul) writes:
| If a normal speed tape deck has a pitch control that
| goes 10% in both directions, how many semitones does
| it go in both directions?

Knowing this net, I'm probably the 13th know-it-all to respond, but...
A one octave increase in pitch corresponds to a doubling in frequency.
Each octave comprises 12 semitones, so a semitone increase corresponds
to an increase by a factor of the 12th root of 2 (assuming equal
temperament).  Hence:

		 log 1.1		 log 0.9
		--------- = 1.65	--------- = -1.82
		  log 2			  log 2
		  -----			  -----
		    12			    12

Adding correct dimensions to these equations is left as an exercise
to the reader.
--
"Your fifths are too narrow!"
"Hogwash, yours are too wide!"
From: rotthee@eng.auburn.edu (Tae Soo No)
Newsgroups: rec.audio
Subject: SONY AUDIO RACK SYSTEM(R7100CD5) WANTED !!!
Date: 13 Aug 92 18:50:09 GMT
Reply-To: rotthee@eng.auburn.edu
Organization: Auburn University Engineering

If you have the system above or have information about it, Let me have your mail!!
Thank you 

		Sanguk Lee
Newsgroups: rec.audio
From: bower@pecan.cns.udel.edu (Tyson Bower)
Subject: Re: Looking for Surround Sound Emulation
Keywords: Stereo, Surround Sound
Organization: University of Delaware, Newark
Distribution: na
Date: Tue, 18 Aug 1992 00:02:19 GMT

Steve may have a point.  Then again, if you were to ask me, I'd say
none of it were an issue, because I wouldn't use it [the cheap surround
circuit] in the first place.

True, the first time I saw a magazine article with the design in it,
I rigged it up.  I found it to be a novelty at best.  Besides, a
simple Dolby surround processor can be found very cheaply.  Kenwood
makes a model which comes with its own speakers.  I've seen
it advertised for $150.  

I feel the advantages of purchasing a "real" surround processors are
worth it.  The variable delay alone makes it worthwhile.  Not to mention
the fact that level balancing can be tricky with the homebrew version.


Newsgroups: rec.audio
From: gre253@mis.csiro.au (Steven Green)
Subject: Re: Pro-Logic De-Coder
Organization: CSIRO ITS
Date: Fri, 14 Aug 92 01:41:47 GMT

In article <1992Aug10.184834.31962@europa.asd.contel.com> stewart@europa.asd.contel.com (Brad Stewart) writes:
>I already own a receiver that I do not wish to get rid of so I would like to 
>purchase a Pro-Logic de-coder.  HELP, I am having trouble finding anyone who 
>has them.  Any sugesstions would greatly be appreciated.  I would prefer mail 
>to my box but posting would also be fine.
>
>
>Thanks in Advance,
>
>
>Brad
>
>Brad Stewart

Try the Yamaha DSP-E1000. It is designed to compliment an existing stereo
amplifier by providing the additional 5 channels ( centre, front and rear
effects ). Your amp. supplies the 2 main channels.

Give it a look, you'll ge glad you did!

-- 
* Steve Green     *  "Hey Rocky, watch me pull a rabbit outa my hat!"    *
* Comms Group     *  "That trick never works"                            *
* ITS Branch      *  "Nothin' up my sleeve - PRESTO"                     *
* CSIRO Australia *  "No doubt about it - I gotta get another hat"       *
Newsgroups: rec.audio
From: gjmg6749@uxa.cso.uiuc.edu (Geoffrey J Maxson)
Subject: Accessing Sony's optical digital output
Organization: University of Illinois at Urbana
Date: Fri, 21 Aug 1992 04:13:55 GMT

I recently was involved with a electronics project
in which I took CD-player output and converted it to standard digital
I thought that this would be cool to use with my Sony CDP-515,
but I can't seem to find an optical connector for the CD player that I 
can convert to a TTL or CMOS level to use with my electronics.

Anyone know anything about this?

geoff

Newsgroups: rec.audio.car
From: shawn@panix.com (Shawn Herzinger)
Subject: Polk C4 Subwoofer Box opinions?
Date: Thu, 13 Aug 1992 22:20:25 GMT
Organization: PANIX Public Access Unix, NYC

I am considering the purchase of a ~$350 subwoofer box for a '90 Acura Integra.
The Sub will be used with a Soundstream D200II (100 W/CH 4 Ohms) amp.
Crossover will be active, maybe a Soundstream DX7 or a Sony XEC-1000.  The C4
is appealing to me because of its small size (14" L X 27" W X 8" H) and its
intelligent design.  The C4 received a seemingly lukewarm review in the March/
April '92 issue of _Car Stereo Review_.  For example, the reviewer stated that 
"...the large quantity of air being forced out of the ports resulted in some 
turbulence." And, "The only B marks this system gets, in fact, is in the
system-dynamics category."

I would like to hear from happy/unhappy Polk C4 owners out there.  Also,
suggestions for an alternative subwoofer system would be appreciated.  Although
a custom-built enclosure may be the best solution, I want to avoid that route.

Please E-mail to shawn@panix.com.

I will post a summary if there is interest.

Thanks!
From: trw@spl1.spl.loral.com (Tim R Witort)
Newsgroups: rec.audio.car
Subject: Building Enclosures
Date: 17 Aug 92 19:08:40 GMT
Organization: Loral Software Productivity Laboratory

I've built a few full range and subwoofer enclosures, but
did so without a whole lot of knowledge on the science of
speaker enclosures. What books/magazines/articles are out
there (and actually *findable*) that get into the details
of building speaker enclosures - esp. subwoofers?

thanks a ton,

-- Tim
From: cjm9321@hertz.njit.edu (The InfoMan)
Newsgroups: rec.audio.car
Subject: Re: Kenwood KDS-93R
Date: 19 Aug 92 04:56:20 GMT
Organization: New Jersey Institute of Technology, Newark, N.J.

In article <1992Aug19.000119.16303@wam.umd.edu> davesum@next01pg2.wam.umd.edu (David Andrew Sumner) writes:
>I've found one that the owner is selling for $179.00, but I don't know  
>anything about it.  Is it worth that price?


	Is it the Kenwood KDS-93R or the KDC-95R?

	I'll give you the specs on the 95:

	CD/tuner, removable chasis, CD changer controls w/ 20-track
prog., 4 1-bit D/A converters, 8X oversampling, quartz synthesis seek
tuning, 16 FM & 8 AM, bass and treble, loudness, 3 sets of RCA preamp,
amber/green illum, Wireless remote

	This is a preamp only, no internal amp. Which means you have to
buy an amp to get sound to your speakers.

	It's list is $649, selling for $549.

	It's a good deal if it's the 95. What's wrong with it?
Are you getting the books?

			Hope this helps,

-- 
       		          ___     _      Buy USA products, It's YOUR job.
MADE		  |   |  \   \   / \
       IN	  |   |    \    /---\	 	Christopher J. Massa
	    THE   |___|  ___/  /     \   	cjm9321@hertz.njit.edu

-- 
       		          ___     _      Buy USA products, It's YOUR job.
MADE		  |   |  \   \   / \
       IN	  |   |    \    /---\	 	Christopher J. Massa
	    THE   |___|  ___/  /     \   	cjm9321@hertz.njit.edu
Newsgroups: rec.audio.car
From: jch@sumac27.cray.com (J.C. Hamlin)
Subject: Re: Building Enclosures
Originator: jch@sumac27
Organization: Cray Research, Inc.
Date: 20 Aug 92 12:40:41 CDT


In article <1992Aug17.190840.14693@wdl.loral.com>, trw@spl1.spl.loral.com (Tim R Witort) writes:
> I've built a few full range and subwoofer enclosures, but
> did so without a whole lot of knowledge on the science of
> speaker enclosures. What books/magazines/articles are out
> there (and actually *findable*) that get into the details
> of building speaker enclosures - esp. subwoofers?

   "Great Sound Stereo Speaker Manual", David B. Weems (for Crutchfield)
   "Crutchfield Catalog", Crutchfield
   "The Installation Doctor", Crutchfield
   "The Installation Specialist", Crutchfield
   "The Loudspeaker Design Cookbook", V. Dickinson
   "Speaker Builder Magazine"
   "Car Stereo Review"

> thanks a ton,

Welcome.

J.C. Hamlin
jch@Cray.COM
From: mxl@cbnewsg.cb.att.com (marc.a.levy)
Newsgroups: rec.audio.car
Subject: Re: Lying to save a buck (was Dealing with Dealers)
Date: 12 Aug 92 19:37:43 GMT
Organization: AT&T

In article <RSLAU.92Aug11175824@tarazed.usc.edu> rslau@usc.edu (Robert Lau) writes:
>On the original thread, I've never had to lie to a dealer to get a good
>price and I've only had to pay MSRP once.  The way I see it, is
>haggling for $50 off a $1000 item, or $25 off a $500 item worth my time
>and energy?  Definitely not.  And besides, if you don't walk in with an
>attitude problem, they'll throw in at least that much worth of free
>misc stuff (wire, connectors, etc) if they do the install or on a large
>purchase.

	   
Why would a sales person want to throw in "Wire, Connectors,
etc" If you have already said "I'll take it!"?

If part of your haggling is to ask for this stuff to be
"Thrown in", Thats one thing, but to ask after the sale is
made, or wait for the salesperson to offer it, FORGET ABOUT
IT!  The accesory's are more profitable (Percentage) than the
actual purchase!

When I sold Cammcorders, we would sell a unit for $799, and
make about $100 profit..  (After a customer haggled for that
price, the unit was tagged out at $999).  So, Now I am only
making $100 profit on the sale... So, I sell them a Case, a
Battery, a Light, and maby a tripod.  The Case cost's $20, I
sell it for $69, The battery cost $18, I sell it for $69, the
light cost $22, I sell it for $69, the tripod cost $15, I sell
it for $99.   YOU DO THE MATH!  Where do I make more profit?
Do you think I am more likley to discount the camera to make
the sale, and then make money on the "Throw in's"? YES! YES!!


>
>I've been going to the same dealers for the past 10 years, they know
>me, I trust them, they make a reasonable profit, I get a reasonable
>price, everybody sleeps well.  If the dealer is going to lie to you,
>why deal with her?

They ALL lie, you just have not witnessed it.  
"Why buy the Sound Stream D200 for $350, you can have a Krako
400W for $229!!!".. Sure, this is not a LIE, but it is
assuming that the sales person is trying to sell the krako
over the Sound Stream.. Why?? Krako is more profitable!


>
>In article <1992Aug11.185314.770@wam.umd.edu> fitchitt@wam.umd.edu () writes:
>
>   I agree with this, bring that Crutchfield and other Mail order catoluges
>   (usually older ones too, cause dealers never seem to have the "newest" stuff
>   available)
>
>

If you think crutchfeild has good prices, take a look at any
of the places on Canal Street in NYC.


Marc.
From: chee1la@jetson.uh.edu (Robert Koemtzopoulos)
Newsgroups: rec.audio.car
Subject: VW Golf 1990 Speakers
Date: 21 Aug 92 22:22:58 GMT
Organization: Univ. of Houston, Dept. of Chem. Eng.

I am driving a VW Golf 1990 that came with the factory installed speakers.  I am thinking of
buying a receiver that requires speakers that can handle at least 25 Watts each.
Does anybody know the power specifications for the factory installed speakers for my Golf ?
will I destroy them if I use this receiver in high volume settings ?
I asked these questions to my VW dealer and they could not give me a definite answer....

	Thanks in advance
								Robert Koemtzopoulos
								CHEE1LA@JETSON.UH.EDU
								Chemical Engineering, University of Houston
Newsgroups: rec.audio.car