HDTenEightyP/NetNews huggingface dataset:
From: blake@wk60.nas.nasa.gov (Matthew W. Blake)
Subject: Re: popping noise question
Organization: NAS, NASA Ames Research Center, Moffett Field, CA
Date: Tue, 18 Aug 92 15:06:57 GMT

I have recieved a couple of responses related to the cables/routing
from pre-amp to amp.  I do not use the pre-amp output from the
Soundstream, it has an amp and that output(over conventional speaker 
wire) is routed to the Sony amp.  Also, why would the signal not pop
when the radio is running but does pop when the tape deck is running?

Matt
blake@nas.nasa.gov

Newsgroups: rec.audio.car
From: mxl@cbnewsg.cb.att.com (marc.a.levy)
Subject: David Levy Co.
Organization: AT&T
Date: Thu, 13 Aug 1992 14:42:35 GMT


Hi,

   Parts Express sells a lot of product from the David Levy
   Company in California.  I was interested in purchasing the
   alarm system in the parts express catalog, along with the
   Mass Sensor.  The alarm seems to offer alot for a low
   price.  Has anyone dealt with this, or any other product
   from this company?

Marc.
From: "chad thomas" <chad.thomas@canrem.com>
Newsgroups: rec.audio.car
Subject: iasca schedule
Date: 12 Aug 92 15:45:04 EST
Reply-To: "chad thomas" <chad.thomas@canrem.com>
Distribution: rec
Organization: Canada Remote Systems

Hi,

        Does anyone have a schedule of IASCA events in and around
Southern Ontario.  Your response would be greatly appreciated.

Thanks in advance...                  Chad Thomas
--
Canada Remote Systems  - Toronto, Ontario/Detroit, MI
World's Largest PCBOARD System - 416-629-7000/629-7044
Newsgroups: rec.audio.car
From: mvolo@ecsvax.uncecs.edu (Michael R. Volow)
Subject: Installation 1979 Datsun 210 (not B210)
Keywords: Datsun install
Organization: UNC Educational Computing Service
Date: Sat, 15 Aug 1992 14:26:10 GMT


Has anyone installed a simple FM-cassette player in a 1979 Datsun
210? If so, what is involved? What are the difficulties in installing
the player? the speakers (door)? Thanks in advance.
-- 
Michael Volow, Psychiatry, Durham VA Med Center, Durham NC 27712
919 286 0411 Ext 6933               mvolo@uncecs.edu
Newsgroups: rec.audio.car
From: veloovet@silver.ucs.indiana.edu (mohan veloo vethiveloo)
Subject: Car Audio Forsale
Organization: Indiana University
Date: Sat, 22 Aug 1992 02:27:37 GMT

 need to sell some car stereo components because i've bought a new one.
here they are.

1) I have a Bolt MOSFET car power amp for sale
   Here are some of the specifications:
        25w/ch x 4 into 4ohms
        50w/ch x 4 into 2 ohms
        Full MOSFET power supply
        Descrete components
        2 ohm stable
        gold plated leads


I'm asking $175 obo. Make an offer and I'll consider it.

2) Kenwood KDC-85r for sale

   Here are some of the specs:
        - removable chassis
        - CD changer controls with 20 track programming
          in other words, it can control a seperate CD changer
        - four 1 bit D/A converters
        - 8-times oversampling
        - quarts synthesis tuning
        - sperate bass, treble, loudness
        - 3 sets RCA preamp outpusts with dual amp balancer fader
        - switchable amber/green illumination

Its one of Kenwood's top models. The only model higher than this is the
KDC-95R which just adds a remote control. I bought this for $480. It is
only 4 months old. I'm willing to let it go for $375 obo. You can
contact me at 333-2430 or email me at VELOOVET@ucs.indiana.edu.
From: shobaki@gummo.cse.ogi.edu (Khaldoun Shobaki)
Newsgroups: rec.audio.car
Subject: Re: Literature on installing car audio
Keywords: car audio book
Date: 17 Aug 92 17:20:40 GMT
Article-I.D.: ogicse.41542
Distribution: usa
Organization: Oregon Graduate Institute - Computer Science & Engineering

In article <1992Aug15.142302.2153@ecsvax.uncecs.edu> mvolo@ecsvax.uncecs.edu (Michael R. Volow) writes:
>
>I'm interested in installing low-end cassette FM player in an old
>car for my son. Where can I find information on how to this myself?
>The car is a 1979 Datsun 210 (not B210). Some of the local dealers
>tell me than this car is difficult to install in and want $80-100
>to install a unit and 2 door speakers. Where can I find out more
>about this? I don't want to get started in something I can't finish.
>Thanks in advance.
>-- 
>Michael Volow, Psychiatry, Durham VA Med Center, Durham NC 27712
>919 286 0411 Ext 6933               mvolo@uncecs.edu

I own a 1979 Datsun 210, and have installed a decent system in it...
(well, lets just say the system cost sbout as much as the car ;-))

It is a real pain in the butt installation...

The rear deck is oddly shaped, and it took me about 2 hours to drill through
the back to install my 6*9's...you would probably do best to bottom mount 
any speakers in back, as mine _barely_ fit...

The front doors are a tribute to Datsun flimsiness....there was no place to
really solidly mount speakers, so mine are anchored to metal in only 2 
places...but most 6.5's will come with little anchors to hook to the particle
board stuff that lines the door...

The deck installation is _the_WORST_  I would really suggest mounting the
deck in the glove compartment, unless you really want to take the dash off
and cut/melt through it to fit a deck in.  Also, it is pretty shallow, so 
your work has to be extremely precise.  Like I said, just cut a little hole in
 the back of the glove box and stick the deck in there...its not pretty,
but neither is hacking up the dash...

Hope this is of some help...

-Kal

--
 _____________________________________________________________________________
/ Kal "Weasel" Shobaki	|"Fate, it protects little children, fools, and ships \
\ Official OGI Slave	|	named Enterprise" - William T. Riker          /
/ Harvey Mudd preFrosh	|-----------------------------------------------------\
\ shobaki@cse.ogi.edu	| A2000-68020/68881, 286 BB, Supra 2400zi, Quantum105s/
/_______________________|_____________________________________________________\
\ I'm just a simple cave man, I don't understand your modern technology       /
 *****************************************************************************

 
Newsgroups: rec.audio.car,comp.sys.tandy
From: jkonecn@andy.bgsu.edu (Joe Konecny)
Subject: Optimus CD player
Followup-To: poster
Keywords: Optimus
Organization: Bowling Green State University B.G., Oh.
Date: Sat, 15 Aug 1992 03:58:11 GMT

 I need an extra sleeve for my Optimus removable CD player.  I've heard that 
there is a place called National Parts that sell RS stuff.  They are supposed 
to sell computer parts and other things.  Does anyone have a phone number for
this place?  RS won't give it out.
Newsgroups: rec.audio.car
Subject: help with eq/amp hookup
From: kwgst+@pitt.edu (Mr. Someone)
Date: 15 Aug 92 19:52:12 GMT
Distribution: rec.audio.car
Organization: pre-med


 I have a Pyramid 300 watt amp/7band eq and i am installing it in my fathers
 1991 toyota corolla.  I also have a pyramid sub box with two 10" woofers and 
 a passive radiator.  I have all of the connections hooked up and when i turn
 on the radio I get sound from all of the speakers.  The problem is that when
 I turn on the eq/amp the sound goes out and all i get is this sound that 
 sounds like hmm..... like a heartbeat i guess you could say.  It goes thump
 thump and no sound comes out of any of the speakers even the ones that arent
 hooked up to the eq.  What is my problem??? I tried fiddling with different 
 positions for the ground wire and it did nothing different.  when i hook up the
 box directly to the speaker outs from the head unit it sounds ok.  What am i
 doing wrong?  have i damaged the eq somehow and just dont realize it or what.
 While im at it does anyone out there who knows about or owns a corolla know
 how to get the little cassete holder out of the dashboard.  It is a pain in
 the but and i cant remove it for the life of me.  Im about to just rip the 
 thing right out. (wouldnt want to do that of course.)  Any help would be
 appreciated.
-- 
_______________________________________________________________________________
kwgst+@pitt.edu is really Karol W. Gieszczykiewicz (but probably being used
by another person right about now...) Please reply to eithet the above or
kwgst@unix.cis.pitt.edu or (best) to the address in this post (if any). TLJ
Newsgroups: rec.audio.car
From: kirchner@unix.cie.rpi.edu (Eric Kirchner)
Subject: Noise
Organization: CIE, Rensselaer Polytechnic Institute, Troy, NY
Distribution: usa
Date: Mon, 17 Aug 1992 15:46:35 GMT

Help!

I am picking up buzzing and a high pitch whine in my stereo, both
coordinate frequency with engine rpm's.  This happens while playing
radio and tape deck, so I don't suspect the antenna (am I wrong?)
I tried a power line filter with little success.

If it helps, I have an '81 vw scirocco with a fairly low end stereo
(~$70, can't think of the brand off hand.)

Any advice would be appreciated.
Thanks for all replies,

Eric
kirchner@unix.cie.rpi.edu

Newsgroups: rec.audio.car
From: dlambert@eng.auburn.edu (Dave Lambert)
Subject: Re: Alternator whine help needed
Organization: Auburn University Engineering
Date: Fri, 21 Aug 1992 01:44:45 GMT

In article <bclark.00fp@jupiter.chi.il.us> bclark@jupiter.chi.il.us (Brian Clark) writes:
>In article <1992Aug17.123733.3198@ducvax.auburn.edu>, lambedb@ducvax.auburn.edu
>writes:
>>I am having trouble eliminating alternator whine in my
>>'86 LeBarron.  I have tried the most obvious solutions such
>>as common ground on all components, capacitor/choke combinations
>>on the power leads, etc.  I still have just enough whine to notice
>>when playing at somewhat low volumes.  A friend of mine made a
>>...[other stuff deleted]
>
>I've found that some audio components introduce more alternator whine than
>others, its generally the cheaper quailty/price ones, but not always.  And
>although there are better ways to fix the install, if you are looking for
>a simple/cheap fix, I suggest you try adding an audio system ground loop
>isolator on the RCA lines inbetween your head-unit and amps or crossover.
>You can get one or more (one for front, one for rear, etc...) from Radio
>Shack for $10.95  ( Catalog #270-054 ).  These have had very pleasing
>results from a number of different people who I know are using them.
> **stuff deleted** 
>
>--
>Brian Clark            bclark@jupiter.chi.il.us

Thanks for the response,  I've already purchased the R.S. ground loop
isolation transformer and I've already returned it to R.S.  I may
have just gotten a "lemon", but when I installed it, the bass was
almost gone and the mid-range was a bit harsh.

As to what is in the car...

                 Sony CDX-7520 headunit
                 Alpine 3321 EQ/Crossover
                 amps by:  Alpine, Crutchfield and Coustic (so sue me!)
                 Speakers by Acoustic Reasearch and subs by Fosgate.

I've isolated the whine to the head unit ( when I pull the RCA connector
out of the headunit, the whine goes away).

Anyway... thanks for the advice...

David
dlambert@eng.auburn.edu


Newsgroups: rec.audio.car
From: gdj1@cec1.wustl.edu (Gary Dewayne Johnson)
Subject: Sony Headunits and Amplifiers
Followup-To: gdj1@cec1.wustl.edu
Organization: Washington University, St. Louis Mo.
Distribution: usa
Date: Sun, 16 Aug 1992 15:20:41 GMT

I just recently bought a Sony Xm4040, which is a new addition
to the Sony lineup for '92.  It puts out:

		40W X 4 (rms)  90w X 4 (peak)
		50W X 4 (rms into 2 ohms)
		40w X 2 + 100w * 1 (rms)
		100W X 2 (rms)

It is a very clean amplifier, I listened to several (2 in cars
exacltly like mine) and liked their nice clean sound.  

What I want to know is are Sony headunits good in the way
of tape sound reproduction, and how well do Sony amplifiers
work as subwoofer amps?

If anyone could give me any information, it would be greatly
appreciated!  Please reply to gdj1@cec1.wustl.edu.

Thanks,
Gary
gdj1@cec1.wustl.edu
.
From: "chad thomas" <chad.thomas@canrem.com>
Newsgroups: rec.audio.car
Subject: polyfill
Date: 14 Aug 92 22:54:16 EST
Reply-To: "chad thomas" <chad.thomas@canrem.com>
Distribution: rec
Organization: Canada Remote Systems

Frank,

        Filler is just that.  You should never stuff your box as it
decrease the apparent size of the box.  Some inefficient suffings I have
seen have actually raised the hemholtz of the box by 10hz!.  This also
happens with sealed.  Look out when your stuffing around your port as
air velocity around the port may be severe enough to shear off some of
the insulation and shoot it out the port.

JBL has some good technical papers on box building floating around.
Check them out.

Good luck....                        Chad Thomas
--
Canada Remote Systems  - Toronto, Ontario/Detroit, MI
World's Largest PCBOARD System - 416-629-7000/629-7044
From: harner@test1.dab.ge.com (Keith Harner)
Newsgroups: rec.audio.car
Subject: Re: Whistling Port
Date: 18 Aug 92 20:33:29 GMT
Organization: General Electric - SCSD

In article <1992Aug13.204850.13485@lsil.com> gh@lsil.com writes:
>>Hello all.  I just have a simple question.  What is the best way that
>>anyone has found to eliminate the whistling from a port.  The box in
>>particular that I am thinking of is a 4th order bandpass with the drivers
>>sharing the same front chamber.  The port is 4"x4".  I have read and heard
>>that rounding the edges on the port will do.  Is this the best way?  Any input
>>would ber appreciated.  Please respond via E-Mail.
>
>Turbulence basics say that you cannot have wistling without turbulent flow.
>Sharp edges, discontinuities are just the thing to make a flow turbulent.
>Any way to remove the edges in the flow will also do away with the whistling.

You can have the ports in that cabnet as smooth as you want, but, if the 
air speed in the port is much greater than .65 mach (my rule of thumb, some
designers go higher) you have a very good chance of hearing some sort of 
port noise. Solution ?  Make the port with a larger cross sectional area
and length.


--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|Keith Harner                                   |harner@civax.DAB.GE.COM     |
|General Electric Simulation and Control Systems|harner@sunny.DAB.GE.COM     |
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Newsgroups: rec.audio.car
From: jdavis@wizard.etsu.edu (Jason Davis)
Subject: Re: Help!  Specs needed on woofer
Reply-To: jdavis@wizard.etsu.edu (Jason Davis)
Organization: East Texas State University, Commerce, TX
Date: Fri, 14 Aug 1992 05:49:36 GMT

In article <1992Aug13.165646.29549@amd.com> collin@angelo.amd.com (Collin K. Ong) writes:
>I've located some woofers that I'm interested in, but they have no specs,
>so I was hoping somebody could look them up and give me some specs, or some
>off the cuff general knowledge about them.
>
>Here's what I know:
>
>10" Subwoofer, dual voice coil
>Poly cone/foam suspension
>64oz magnet
>200 Watts (peak?)
>
>They are manufactured by Carbonneau Loudspeakers in West Michigan and 
>the box is labeled: "Perfect Interface, 6-10in STS-108DVC"

Carbonneau originally was a manufacturer of "factory" car speakers.  The
Rockford Corp. contracted with them to manufacture Rockford
Fosgate speakers with Rockford specs.  Perfect Interface is part of the Rockford
Corporation.
>
>The retailer claims that they were used in Rockford Fosgate boxes, but they
>appear new.  An Ohmmeter measured 6.9 ohms and 7 ohms across each of the
>coils.  Does this automatically mean that they are 8 ohm rated?  I found this
>odd because I expected Rockford stuff to be 4 ohm for car.

The boxes Rockford manufaectures are bandpass enclosures which
could explain why the woofers look new as they are protected from the
elements, dust, etc.  ost of Rockford's speakers are available in both 4 and
8 ohm versions.
>
>I'm looking for Thiel-Small parameters, general reputation of Carbonneau, or
>anything else on these woofers.  What is a normal price for these?
>
>Thanks alot...
>
>Collin Ong
>collin@brahms.amd.com

The TS parameters could be hard to come by, however, you might try
giving Rockford a call in case they might be willing to disclose this info.
Rockford's number(s) is 1-800-366-3565 or 1-602-967-3565.
As far as reputation goes,  have a large collection of Rockford drivers
and  have been extremely pleased with them.  They are also proven in contest.
   /|   Jason Lee Davis                        <jdavis@wizard.etsu.edu>   |\
||/_|   Shiloh Productions sound co. ____      <s2903d@etsuv2.etsu.edu>   |_\||
||\ |   Rt. 1  Box 175              (_ |_)     <s2903d@etsuvax2.bitnet>   | /||
   \|   Klondike, Texas 75448 ________)| _____ (903) 886-2903             |/
From: vince@jsrvx1.ucsf.edu
Newsgroups: rec.audio.car
Subject: Mail Order Distributors Advice
Date: 13 Aug 92 14:27:34 -0800
Organization: University of California San Francisco
NNTP-Posting-Host: jsrvx1.ucsf.edu

I'm looking for advice about mail order. I just got a Sony CDX-A10 for $30 at
a major chain's fire sale. I'm looking for a deck and amp to connect it to, 
and I don't want to be gouged. Please mail me your suggestions; the only
place I know of off the top of my head is Crutchfield, and they left mee
unimpressed when I last looked at them a few years ago.


Thanks in advance for your suggestions!! :)

Vince Reed
vince@jsrvx1.ucsf.edu
Ucsf Cardiothoracic Surgery
From: erich.lim@cutting.hou.tx.us (Erich Lim) 
Newsgroups: rec.audio.car
Subject: WHAT'S A GOOD CAR?
Date: 23 Aug 92 00:45:00 GMT
Distribution: world
Organization: The Cutting Edge - Houston, TX - 713-466-1525
Reply-To: erich.lim@cutting.hou.tx.us (Erich Lim) 

-> My wife and i are thinking of buying a new car and wonder what's good
-> to install in?
-> We are cheap and are therefore looking at a base eclipse, integra or
-> maybe a saturn, accord or sentra.

  Go for an Integra if you're not crazy about having space, but just
want the space for those occasions when you want to put people in the
back seat.  Integra's are pretty simple cars to put a decent system into
and a good sounding one also.  If getting an Integra, I would suggest
the Hatchback, as it's cheaper, faster, looks better, etc.  For about
$2500, you can get a professionaly installed system put in w/ Cd player,
subs, amps, separates.  For about $5000 you can have a competition
system put in.  Integras have the space for a decent sized sub, easy to
put a center channel into, good places for installing the tweeters up
front, double-din chasis.


Erich Lim
  Internet add.-  erich.lim@cutting.hou.tx.us
From: ebe+@pitt.edu (Elmer Beachley)
Newsgroups: rec.audio.car
Subject: Re: Viper car alarm
Date: 13 Aug 92 02:52:13 GMT
Distribution: usa
Organization: University of Pittsburgh


Newsgroups: rec.audio.car
Subject: Re: Viper car alarm
Summary: 
Expires: 
Followup-To: 
Distribution: usa
Organization: University of Pittsburgh
Keywords: 


WRT to the Viper, I can offer some (very little actually) info.  I recently
bought one at a car-audio show because it had the smallest control unit
of any unit at the show (and there were MANY.)  This was important because
I wanted to put it in a Miata which is very space limited.

So far, I've hooked everything up on a bench and it all works.  I think
my unit (a model 600) has almost all the features of the much discussed
Cliffords.  Of course, the real test of an alarm comes after you install
it.  Sorry, can't offer much there.

Elmer Beachley ebe@unix.cis.pitt.edu
Newsgroups: rec.audio.car
From: cl314407@ulkyvx.louisville.edu
Subject: <>HERE'S HOW TO MAIL ORDER!!!!<>
Organization: University of Louisville
Date: Thu, 20 Aug 1992 19:47:28 GMT


Here it is, the simplest mail-order solution to your car audio dilemnas:

	Pay $8 to CompuServe, or find a friend with an account.

	Use the Online Mall, and get a price list of all the stereo equipment.

	

You'll find (as I did) that the prices there range from $50-$150 less than
Circuit City, who generally has the lowest price as they say (I know, I've done
the research!).

Forget Crutchfield's, their prices are RETAIL SUGGESTED price.

AKA, they suck.

	CompuServe will get it to you as slow as 3-4 weeks ($5 postage)
to overnight (I think it can be as much as $25, but heck, with the amount
you're saving, that could still be cheap!)

Don't take my word for it, check in on this yourself.

Oh, yeah, one note:  Their selection is somewhat limited, so don't expect to
find an extravaganza.  The selection is huge, tho', as CompuServe accesses the
Manufacturer.


	Tom (CL314407@ULKYVX.LOUISVILLE.EDU)
From: stormoen@plains.NoDak.edu (Michael D. Stormoen)
Newsgroups: rec.audio.car
Subject: Re: help with eq/amp hookup
Date: 18 Aug 92 20:23:56 GMT
Article-I.D.: plains.19773
Organization: North Dakota Higher Education Computing Network

In article <4809@blue.cis.pitt.edu.UUCP> kwgst+@pitt.edu (Mr. Someone) writes:
>
> I have a Pyramid 300 watt amp/7band eq and i am installing it in my fathers

If the amp is not designed for bridging, and it is hooked up this way or
if your positive and negative hookups (polarity) is backwards, this
might be the reason for a heartbeat noise.
From: keys@csmes.ncsl.nist.gov (Larry Keys)
Newsgroups: rec.audio.car
Subject: a/d/s Amplifiers
Date: 18 Aug 92 15:31:51 GMT
Organization: National Institute of Standards & Technology

Hello,

Is there anyone out there who has an opinion on a/d/s amps?

a/d/s has a new line of amps Series 2 which are supposed to be better 
than their previous line.  Their previous line didn't seem to sell 
very well, however now that the Series 2 have become available, the 
prices on the older units have gone down significantly.  A dealer in 
my area offered me a new PH15 (6x50 into 4ohms) for $435 (not including 
tax), but Sound City (a catalog dealer in NY) has the PH15.2 for $489 
total.  a/d/s told me that Sound City is the only "authorized" 
catalog dealer for their product line, and that any product bought from 
Sound City would be fully covered.

So, is there anyone out there who has a/d/s amps, or has anyone seen/read
any evaluations of their amps.

Thanks,

Newsgroups: rec.audio.car
From: davesum@next01pg2.wam.umd.edu (David Andrew Sumner)
Subject: Kenwood KDS-93R
Organization: Workstations at Maryland, University of Maryland, College Park
Date: Wed, 19 Aug 1992 00:01:19 GMT

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?
Newsgroups: rec.audio.car
From: calving@netcom.com (The Lindsay-Geyer Corp)
Subject: Re: I'm lost in Wiring Hell
Date: Thu, 13 Aug 92 10:33:16 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Distribution: na

>>goes on.  How am I supposed to know which is the right wire?
>
>
>	How about spending a few extra bucks to get GOOD speaker wire
>instead of factory (22 gauge>) wire. Just mark them your own way and you
>will know which wire is which. And you will get Better sound.
>>

1)  Yes, the car body is used as ground, but it sounds awful (yes, the ground medium makes a difference)

2)  Is everything shielded?  Motors, etc. make a lot of electronic noise.  Try wrapping your stuff in Aluminumn (or some other metal) foil.

3)  Instead of "GOOD" speaker cables, select THE BEST audio cables, especially ours.  If you don't like them, send them back within 30 days: yur money back.

3 1/2)  Better sound with no obligation (except to listen to them, giving them a fair (72 hrs unre-routed) evaluatin vs. ANY onether cable.


So, wires (cables) are as important as any other component in a systyem.  And often, the improvemewnt they provide is the mosty bang for the buck.\

YOU try, then YOU decide!


Above all:  Don't let anyone F you over!!

Calvin G.