HDTenEightyP/NetNews huggingface dataset:
From: jsalmi@lookout.it.uswc.uswest.com (John Salmi)
Newsgroups: rec.audio.car
Subject: Re: tweeter positioning
Date: 30 Jul 92 20:41:39 GMT
Organization: US West Information Technologies

In article <25071@dog.ee.lbl.gov> etjue@lbl.gov (Eric T. Jue) writes:
>I have a Honda Civic hatchback and have installed my tweeters in the air
>conditioner vents.  It was a very easy install and they remain hidden. 
>Unless you're a perfectionist, you shouldn't really worry about the
>tweeters being off-axis.  Always remember that the car environment is the
>worst place to get good quality sound.  Good luck.

(i must be in a followup mood today :-)

but, it can be done.  mobile soundstaging is possible.  and with a bit of
advance planning, it's not that hard.  

i chose to cut holes in the doors of my '91 accord coupe for the tweets.
and the installers (yes - i opted for a pro job :-) were able to aim the
tweets enough to give me a moderate soundstage. i'm lacking at least a center
channel, at most another set of tweets mounted elsewhere.

i listened to a bmw 500something a couple of months ago which posessed great
staging.  even while moving. :-)

enuf.  i believe that i've had one too many cups of coffee today.

cheers,
-- 
Juan Salmez		<jsalmi@uswest.com>		(303) 595-2863

"I've got a news flash for you, joy-boy...  Party Time's Over!!"
Newsgroups: rec.audio.car
From: robb@ais.org (Robert Gonyer)
Subject: Kenwood KGC-9041
Organization: UMCC
Date: Wed, 29 Jul 1992 04:12:47 GMT

Heya again.  I have acquired a Kenwood KGC-9041 EQ.  A friend of mine
got his whole Kenwood system ripped off, except for this EQ.  They
didn't manage to get it out, but they did manage to destroy/mangle or
take the DIN cords.  My friend decided to sell the EQ and just start over.
Being the friend that I am, I offered to relieve him of the EQ for $100.
Suprisingly he accepted.  Anyway, you guessed it, I need the DIN cords.
No one around here will order them for me since I dont have the receipt
or box.  I ordered a Kenwood DIN cable from Parts Express, but they arent
right.  The bottom two pins on these 8 pin connectors are offset.  They
dont follow the pattern of the rest of the circle.  Even if I could get the    
pinouts for thses, I would be greatful.  I'm very eager to get this thing 
up and running, so any suggestions would be VERY VERY appreciated.
Oh, btw, it has 3 output DIN's, 1 front, 1 back, and 1 sub.  It also has
a DIN input, and RCA inputs.  I will be using RCA inputs so I wont need
the DIN input.  Thanks a lot!
-Robb

-- 
/~~~~~~///~|~~~~~~~~~* 5.0 Ford Mustang II *~~~~~~~|~~~~~~~~~~~~~~~~~~~~~~~~~\
\  \\\///  |  Stillwater Design-Pioneer-Infinity   |                         /
/   \XX/   |   Aiwa-Cerwin Vega!-Sherwood-Technics | robb@141.211.206.16    /
\__Amiga!__|_______________________________________|_______________________/ 
Newsgroups: rec.audio.car
From: jch@teak.Cray.COM (J.C. Hamlin)
Subject: Re: Head units with subwoofer control?
Organization: Cray Research, Inc.
Date: 28 Jul 92 14:56:47 CDT

In article <1992Jul24.164843.5881@city.cs>, lionel@cs.city.ac.uk (Lionel Tun) writes:
> I have come across Sanyo radio-cassettes with a knob for
> subwoofer control.
> 1. Are there other makes that do this?

Yes, there are a couple other manufacturers that include a subwoofer 
crossover and output as part of their head unit.  However, in all of these 
units, the front/rear outputs are full-range, not a high pass output.  So 
you still need a high pass filter for them.  As far as 
who:  JVC (many) and Premier (KEX-M850).  There may be other I am unaware of.

> 2. Can I attach an amp and subwoofer directly to this
>    output or do I need a crossover/filter?

The frequency range is sub-bass, but they are preamp outputs only.  You 
need an external amp to drive the subwoofer.

> 3. Are Sanyo cassettes any good, eg compared to Sony?

Many would say no.  But it is up to you to make your own decision.

J.C. Hamlin
jch@Cray.COM
From: al1x+@andrew.cmu.edu (Amit Likhyani)
Newsgroups: rec.audio.car
Subject: tweeter positioning
Date: 29 Jul 92 18:13:17 GMT
Organization: Junior, Electrical and Computer Engineering, Carnegie Mellon, Pittsburgh, PA

I have an MB Quart 215CX midrange, tweeter set.  I put the midrange and
tweeter in the doors.  Unfortunately, I did a poor job of cutting around
the tweeter and have to redo the install with new door panels.  Live and
learn i guess.  It will only cost me $20.  So anyway, when I go back to
do the install, should I mount the tweeters in the door close to the
midrange or up in the dash firing up at the windshield.  Currently, I like
the sound of the tweeters in the door.  How much of a phopa is it to move
tweeters too far away from the midrange.  In this case it will be about 15
inches and they will be off axis to the midrange.  All opinions are welcome
as I am sure I will not get a consensus.
Newsgroups: rec.audio.car
From: scrxlt@lims01.lerc.nasa.gov (DAVID OLSZEWSKI)
Subject: Panasonic CD Player FOR SALE
News-Software: VAX/VMS VNEWS 1.41    
Organization: NASA Lewis Research Center
Distribution: usa
Date: 23 Jul 1992 11:27 EST  

	I have a Panasonic DP40 In-dash Compact Disc Player
	for sale.  The unit is only 6 months old and is in
	perfect working condition.

		25watts x 4
		mute and loud buttons
		Multi-stage Noise Shaping (M.A.S.H.)
		dual color illumination
		aux input
		track search
		... many more features.

	I'll pay for shipping.  Serious inquiries only please....
	David Olszewski		scrxlt@lims01.lerc.nasa.gov
	(216) 977-0055
From: erich.lim@cutting.hou.tx.us (Erich Lim) 
Newsgroups: rec.audio.car
Subject: SPEAKER BOX QUESTION
Date: 22 Jul 92 13:30:00 GMT
Distribution: world
Organization: The Cutting Edge - Houston, TX - 713-466-1525
Reply-To: erich.lim@cutting.hou.tx.us (Erich Lim) 

  You should definetly separate the 2 chambers and stuff the box with
polyester filling or Dacron or something like that.  The stuffing will
make it sound alot better.

 Erich Lim
  erich.lim@cutting.hou.tx.us
                                              
Newsgroups: rec.audio.car
From: al1x+@andrew.cmu.edu (Amit Likhyani)
Newsgroups: rec.audio.car
Subject: Center Channel
Date: 31 Jul 92 14:52:56 GMT
Organization: Junior, Electrical and Computer Engineering, Carnegie Mellon, Pittsburgh, PA


I was talking to a local installer about center channel and he told me that
he uses a pair of TWEETERS in the center of the dash crossed over at some
frequency that I forget off the top of my head.  This made no sense to me.
Center channel is for vocals so I would think that you would use a midrange
driver, but other people have used tweeters and some use those small Polk
4 x 6 midrange, tweeter plates.  Go figure.
From: "glen mead" <glen.mead@canrem.com>
Newsgroups: rec.audio.car
Subject: power recommendations
Date: 28 Jul 92 17:44:43 EST
Reply-To: "glen mead" <glen.mead@canrem.com>
Distribution: rec
Organization: Canada Remote Systems

Hi All,

I'm considering the following speaker arrangements:

5.25" in the front doors and tweeters on the dash
4 x 6.5" on the rear deck plus tweeters
2 x 10" mounted behind the rear set in a sealed box

Now, I was thinking of using a HiFonics Odin (2 x 75W @ 4 ohms) in a
mixed mono configuration to drive the rear deck speakers (4 ohm stereo
load) and the subwoofer (1 4 ohm mono load).  What type of power would
I need to drive the door and dash speakers for the system to sound
balanced?  I would be willing to consider a seperate subwoofer amp as
well so that the system would be using 3 amps.

Glen

PS: Does anybody know the Thiele/Small parameters for Bose 6.5" drivers?
(more specifically, the ones found in the Bose 401 towers)
--
Canada Remote Systems  - Toronto, Ontario/Detroit, MI
World's Largest PCBOARD System - 416-629-7000/629-7044
From: frankb@chip.tek.com (Frank Bordon  436)
Newsgroups: rec.audio.car
Subject: Car Audio and Electronics Magazine
Summary: Need April '91 issue
Date: 24 Jul 92 15:51:10 GMT
Distribution: rec.audio.car
Organization: Tektronix, Inc., Beaverton,  OR.


I am looking for the April '91 issue of Car Audio and Electronics magazine.
Particularly I'm looking for information on the G+S Designs "Competition 200"
amplifier. If someone nows the specs on this amp or has the above mentioned
magazine could they please send me the specs via e-mail.
I am looking for specs such as:
     Power output into 4 ohms? 2 ohms? (Is it stable into lower impedence)
     Damping Factor?
     Overall Quality.

Any help would be greatly appreciated.
frankb
no.exciting.sig.here
Newsgroups: rec.audio.car
From: marshall@sweetpea.jsc.nasa.gov (Jay Marshall)
Subject: Power output on CD player
Organization: McDonnell Douglas Space Systems Company
Date: Thu, 30 Jul 1992 15:36:35 GMT

I just talked with a salesman who said that the Pioneer DEH 880, which
is advertised at 30x4 Watts, has that output with about 10% distortion,
and that they're playing games with the numbers when they say 30x4.
Additionally, he said that getting over about 25x2 "real" power out
will cause overheating problems, especially on hot days.  Since I live
in Houston this is a real concern for me.  Can anyone out there get
me straight on this?  Also, any experiences with the 880 would be welcome.
(I was considering it because of the power output, and the detachable
faceplate.)

thanks,

Jay
-- 
----------------------------------------------------------------------------
Jay Marshall                       
marshall@sweetpea.jsc.nasa.gov    
----------------------------------------------------------------------------
(standard disclaimer)

Newsgroups: rec.audio.car
From: fitchitt@wam.umd.edu ()
Subject: Re: Advice to Beginners
Organization: University of Maryland, College Park
Date: Wed, 29 Jul 1992 17:47:19 GMT

Maybe you can help me. I have 2 Infinity 9062 6X9" (think that the number)
and an MTX 12" Dual Voice Coil woofer. I would like to incorporate these
3 items into some sort of single box for "easy" removale, so a theif doesn't
do it for me.

I would be driving the 6X9's with a Coustic 75 watt/ch RMS amp and the sub with
as (eesh) Pyramid 100 watt/ch (yea right) amp.

My main problem is volume, I havea bout a limit of 80 lbs before this sucker
is going to be too heavy for me to carry, and my small hatchback (280ZX)
doesn't really give me alot of room.

I want to know what kind of box I need to construct, should it have 3
compartments? This wou8#{ld severly limit the volume, so I would probably
have to start playing with ports for any decent bass for the sub.

What I already have: I have a 13"X19"X35" (approx 4.1 cu feet) box I made
"homemade" 200W capacity 12 octave crossovers (at 125 Hz) It goes very
low, nice sound, not REALLY loud, but low, its a sealed box. Unfortunaly
the car I was running this with got stolen, but since it was "removeable"
it was saved. It doesn't really fit in my current car though. And its too
heavy. I'd be willing to sacrifice the < 40Hz but if I have to make 3
compartments in a box that will already be smaller than this, the cu. feet
is looking mighty grim, and I'd have to port. Could I just jam 'em all into
the box without compartments w/o major stereo loss?

Also, should I use both LOW pass and High pass crossovers? The speakers
should be able to handle whatever the amps can give, so should I bother
with a crossover on the 6X9's? Should I get something "better" than the 
125 Hz homemade crossovers for the 12"er? Thanks for any help.

BTW I can probabably handle the carpentry aspect. I'd probably "wimp" out
and used decent grade 3/4" plywood, in a car environment as noisy as mine,
the pain in the ass of using particle is not worth the risk of a knot rattle.
Especailly with a non-square box (it will probably have a sort of pie wedge
shape to maximize space)

THANKS!
From: Mike Stukalin
Newsgroups: rec.audio.car
Subject: Denon DCR-5170 for sale
Date: 21 Jul 92 14:50:00 GMT
Organization: Eastman Kodak Company, Rochester NY
News-Software: VAX/VMS VNEWS 1.41

Denon DCR-5170 AM/FM cassete deck for sale. Has built in 7 Watt X 4 channels
or 14 Watt X 2 channels built in amp (very clean) plus RCA out.
Auto-reverse, seek, memory, auto-loudness, etc.
The deck is less then 2 years old. 
And it's a Denon, for God's sake :-)

I'm asking $165/bo for it.
It's in great shape, comes with original box and manual and some Denon
literature, if you'd like.

Please DO NOT EMAIL. Call me at 716-244-7914 (h) or 716-726-2099 (w)
Mike.S

PS. I might consider a partial trade for a subwoofer amp (70-100 Watt)
From: gt0869a@prism.gatech.EDU (WATERS,CLYDE GORDON)
Newsgroups: rec.audio.car
Subject: Re: Car Audio Horror Stories
Date: 28 Jul 92 04:08:57 GMT
Organization: Georgia Institute of Technology

In article <1992Jul27.103007.2023@merrimack.edu> desmondw@merrimack.edu writes:
>
>     Seeing this group is a little slow recently, why don't we post
>some horror stories of the past that we had with dealers, installers,
>equipment,etc. I know I have some that will make you laugh(and me cry).

I don't know about the slowness, but here goes (oh no :-) )

I come from a little town in south Georgia. Down there, it took a 
little more time for us to reach the level of sophistication in
car stereos than other more metropolitan areas. However, there
were a few of us that had a good grasp on high-end car stereo.
I worked at such a shop there, back in 1984-1985. We wound up
spending a lot of our time fixing screwups caused by clueless
installation. One particular example always comes vividly to
mind whenever I remember those days:

One day, a guy from around town came in, complaining that the 
Pioneer (standard and Centrate) stuff he had would not work
properly. (We, of course, pointed out that Centrate stuff never
worked correctly anyway, but that's not quite the point :-) )
He had installed it in his Pontiac GTA Firebird, and the amps
would shut down as soon as high volume was attempted. He 
deomnstrated the problem to us, during which smoke began coming
from under the drivers seat. After he threw a cold drink under there
to kill the possible fire, we told him that we could probably solve
the problem, but only if we totally reinstalled the system. By now,
the guy was frustrated, and agreed. 

As we disassembled the system, we noticed a couple of large-guage
black wires with ring terminals, bolted together with a large 
bolt and nut, just laying on the floor. Being confused as to what they
did, we asked him. He said that the Pioneer manuals recommended grounding
the amplifiers to a bolt, and that's what he did.

After the initial shock, we explained the concept of grounding to him. 
Also, the fire- it had been caused by the amps attempting to ground
through the patch cables!!! WAY too much current!

Oh well- redneck logic never dies :-)

Regards,
Gordon.

-- 
WATERS,CLYDE GORDON-Georgia Institute of Technology Atlanta Ga 30332 
******<LANGUAGE IS A VIRUS! - Laurie Anderson-Home of the Brave>******* 
uucp:	  ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!gt0869a
Internet: gt0869a@prism.gatech.edu
Newsgroups: rec.audio.car
From: blanchard@utkux1.utk.edu (Tommy Blanchard GRA|GM)
Subject: Subwolfers in series
Keywords: subwolfer,amp
Organization: Chemistry Department, University of Tennessee
Date: Fri, 31 Jul 1992 00:20:51 GMT

I have a small pick-up truck and have just installed two 10", 200 watt 
normal subwolfers (4 ohms each). The subwolfers are powered with a 120 watt 
equilizer booster (45 x 2 rear, 15 x 2 left) operating a either 4 or 8 ohms. 
Now, I have each subwolfer connected to a separate channel from my booster (
left and right rear). Will I gain anything from connecting the subwolfers in 
series to one channel, so both subwolfers can experience the 90 watts? Any 
suggestions?
Newsgroups: rec.audio.car,rec.music.marketplace,misc.forsale,uiuc.classifieds
From: ja51359@uxa.cso.uiuc.edu (dorlexa )
Subject: Car Amplifiers (H/K, Alpine, Alphasonic)
Organization: University of Illinois at Urbana
Date: Sun, 26 Jul 1992 19:53:58 GMT


2 Alpine (3549?) 100W/ch or 300W/mono car amps.  About 2 years old.
$250/piece.

1 Harman/Kardon 40W/ch 100/mono car amp.
$150.

1 Alphasonic MA2070 70W/ch 140/mono car amp.
$100

Jeff
(217) 344-6504
Leave a message

Newsgroups: rec.audio
From: pdm@majestix.cs.uoregon.edu (peter d. mark)
Subject: need advice for buying a cd player
Organization: University of Oregon Computer and Information Sciences Dept.
Date: Mon, 27 Jul 1992 22:38:29 GMT


i would like to buy a cd player but i am not up on all the
latest features and technological issues that are currently
important deciding which to buy.  aside from how it sounds,
what are the most desirable features in cd players?

i should mention that i don't care very much about such 
things as "random play" or multi-cd changing capabilities.
i listen mostly to classical music, and i want to listen
to the movements of a symphony in order, not randomly
permuted.  also, i don't mind getting up once an hour to
change a cd manually.  

my main concern is with good quality sound, and hopefully
to keep the price below $500.  do some cd players have 
something called "digital output" while others don't?
what is it, exactly, and is it important?  how about
"oversampling" multiples?

also, feel free to post, but the news-server here has
been quite flaky recently, so it may be a good idea to
e-mail me as well.

apologies if this is all in an faq file, but i have been
glancing through rec.audio for about a month now, as well
as checking news.answers, in addition to asking someone
who requested an faq to e-mail me a copy if he ever got one,
and i'm starting to doubt that rec.audio has such a file.

peter 
pdm@cs.uoregon.edu
Newsgroups: rec.audio
From: freedmanm@woods.ulowell.edu
Subject: Re: Money to blow, need good AV receiver or component recommendations
Organization: University of Lowell
Date: Mon, 27 Jul 1992 23:54:23 GMT

In article <1992Jul24.032843.19823@coe.montana.edu>, osyjm@cs.montana.edu (Jaye Mathisen) writes:
> 
> 
> I have a budget of appx $1000 - $1500 to spend on a good Prologic receiver,
> or buy it a'la carte.
> 
> I've gone and looked at the stuff available in this area, and the pickings
> are pretty slim.
> 
> I liked the Pioneer VSX-DS1, but I got some "negative" comments from
> other netters on it.  Which is fine, I'm easy.
> 
> I've gotten recommendations to look at Onkyo, but I have no local dealers,
> so need to get a line on which models I should look for to maybe check
> out other places, maybe a trip out to Seattle or somesuch.
> 
> I looked at some Yamaha stuff, but haven't found any reviews.
> 
> I've been told to stay away from Sony, but who knows?
> 
> Anyway, your opinions, comments, even descriptions of what you have and
> like would be cool.
> 
> Thanks.  Please e-mail.  If demand warrants, I'll summarize and post.
> 
> PS... I need at least 4 video inputs, 8 audio inputs, multi-room capability
> if possible, 5 channel prologic, lots of doo-dads.  I'm a gadget freak.
> -- 
>  Jaye Mathisen, COE Systems Manager                (406) 994-4780
>  410 Roberts Hall,Dept. of Computer Science
>  Montana State University,Bozeman MT 59717	osyjm@cs.montana.edu


I have posted some stuff on the Yamaha DSP 1000.  It is by far the best
surround sound processor on the market and has DSP as well, I will post a more
detailed posting about this reciever and you can read it there.... I would
consider nothing else and you are in the right price range.
					mike.
Newsgroups: rec.audio
From: ssr@cypress.com (Bapcha/FPGA)
Subject: Re: blu-tak
Organization: Cypress Semiconductor, San Jose, CA
Date: Wed, 29 Jul 1992 21:13:21 GMT

In article <1346@eouk9.eoe.co.uk> ahaley@eoe.co.uk (Andrew Haley) writes:
>ytl@philabs.philips.com (Ying Tat Leung) writes:
>
>firmly attach speakers to stands.  It has many other applications,
>too- discerning audiophiles claim that a thin coating of Blu-Tack
>around the edge of a CD noticeably improves sound quality.
>Because of its anti-vibration properties, it's also excellent for
>holding LP records (remember them?) to the platter.

Gee.... but my green pen is much much better than the blue sticky
stuff ;-)


-- 
Bapcha - A very bad boy from Cypress Semiconductor
3901 N.  First Strasse
San Jose,  CA 95134, 408-943-2719
From: j_adams@hpfcbig.SDE.HP.COM (John Adams)
Date: Wed, 22 Jul 1992 15:05:33 GMT
Subject: Re: 20 or 24 bit digital recording?
Organization: HP SESD, Fort Collins, CO
Newsgroups: rec.audio

In rec.audio, t8800568@phillip.edu.au writes:

>I heard not long ago that some recording engineers were using digital
>recorders that record in greater than 16 bit, ie 20 bit etc...

>I have often wondered why it is that this has not been done before,
>since a lot of the anti CD brigade are of the opinion that CD is
>not able to reproduce the transparency of vinyl.  Would switching
>to a greater word length (ie 20 or 24 bit sampling) solve the
>problem?  

>This might sould like a dumb question, but since the socalled 1 bit
>players get the data off a disk as a constant stream of data, would
>they be able to benifit immediately from this change in recording?,
>or would it be necessary to change the player to full 20 or 24 bit 


20 bit recording is only begining to appear in recording studios
producing the master copies.  The 20bit master MUST transfered to a 16
bit format as in the case of a CD.  The current technology (DCC omitted)
CANNOT handle the 20 bit format.  However the accuracy of the 16 bit
information on the CD may be truer to form when originating from 20 bit
master than from a 16 bit.

CD and DAT will continue to be 16 bit regarless of the resolution of the
master.

John Adams
From: smee@bristol.ac.uk (Paul Smee)
Newsgroups: rec.audio
Subject: Re: Best news about LPs...
Date: 30 Jul 92 16:44:25 GMT
Reply-To: P.Smee@bristol.ac.uk (Paul Smee)
Organization: University of Bristol

In article <1992Jul30.004804.17694@hpcvaac.cv.hp.com> billn@hpcvaac.cv.hp.com (bill nelson) writes:
>It could be done with a single inductor or capacitor, depending on how
>the leakage increased. If I made such a circuit, I would probably pot
>it also. Who would want people to know that their "mumble mumble magic
>music maker" that they mortgaged their house to purchase, may have cost
>$10 to build?

I had a feeling you could do it with fewer parts than that (unless wire
counts as a part) by simply running the two grounds straight through,
and twisting the two hots together maybe a dozen turns.  (But I'm not
about to go cutting my AudioQuests apart to try it. :-)

-- 
Paul Smee, Computing Service, University of Bristol, Bristol BS8 1UD, UK
 P.Smee@bristol.ac.uk - ..!uunet!uknet!bsmail!p.smee - Tel +44 272 303132