HDTenEightyP/NetNews huggingface dataset:
From: bs753@cleveland.Freenet.Edu (Brett J Grimes)
Newsgroups: rec.audio.car
Subject: ALL YOU MOTHER FUCKERS BETTER READ THIS!!!!!!!!!!!!!!!!!!
Date: 27 Sep 1992 05:09:04 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: bs753@cleveland.Freenet.Edu (Brett J Grimes)
NNTP-Posting-Host: slc4.ins.cwru.edu


ALL YOU MOTHER FUCKERS HAVE THAT GOD DAMN RAP SHIT, GOING DOWN THE
MOTHER FUCKING STREET AT 3:00 AM IN THE FUCKING MORNING SHIT HAS 
GOT TO STOP. IM SICK OF YOU MOTHER FUCKERS!!!!! TURN THE FUCKING SHIT
DOWN. I DON'T WANT TO HEAR THAT SHIT, SOME OF US HAVE A GOD DAMN JOB AND
HAVE TO GET UP EARLY.  SO FUCK ALL YALL!!!!!!!!!
From: cjm9321@hertz.njit.edu (The InfoMan)
Newsgroups: rec.audio.car
Subject: Re: HiFonics Amps: Any Good?
Date: 29 Sep 92 12:49:48 GMT
Organization: New Jersey Institute of Technology, Newark, N.J.

In article <1a867uINNlsv@network.ucsd.edu> simon@ivem.uucp (Simon Lee) writes:
>
>Are the HiFonics amps any good?  I have two 10" subs I want to drive
>and I want to drive them both in 4 ohm.  What would be a good amp for it
>and what would be the best way to drive them for strong, loud bass?
>
>Thanks,
>-Simon
>
>-- 
>*   Simon Lee              *   Microscopy and Imaging Resource          *
>*   simon@ivem.ucsd.edu    *   Intermediate Voltage Electron Microscopy *
>*   sulee@ucsd.edu         *   UC San Diego, Dept. of Neuroscience      *
>-------------------------------------------------------------------------


	I tried to reply but it didn't work.


	Hello,

	I have the HiFonics Boltar running 2 12" HiFonics Pro subs (4
ohm each). The Boltar is 200 W x 2.  It is 2 ohm stable.

	I don't have the HiFonics catalog with me (it's at home) so let
me know how many watts you want to run into each channel.

	I didn't have any problems with the amp. Well, it did clip out
due to too much heat but that was because I had a 10 gauge wire going in
and a 14 gauge wire going out. But now it works fine.

	There is no thumps. It has a slow turn on and a fast turn off.
	It has three protections, Heat if the temp goes over 118F (I
think), If DC is going into the speakers, I forget what hte other is

	I'll tell you tonight, and I also have the Price List.

	It has no fuses (external, you know how some amps have the fuse
sticking out) but the book tells you, you must have the power wire
(10 AWG<) with an inline fuse connected directly to the battery.

	You screw the wire down and then plug it in to the amp.
You might be confused by this, so let me know and I will clarify it
tonight.

						Talk to you later,
						Christopher

P.S. Oh, and the best reason of all....



-- 
M A D E   .   . .---. .---.    \  Buy U.S.A. products,  /    xxxxx ==========
  I N     |   |  \    |___|    <     It's YOUR job.     >    xxxxx ========== 
 T H E    |   |    \  |   |    <  Christopher J. Massa  >    ================
-------   `---' `---' '   `    / cjm9321@hertz.njit.edu \    ================

-- 
M A D E   .   . .---. .---.    \  Buy U.S.A. products,  /    xxxxx ==========
  I N     |   |  \    |___|    <     It's YOUR job.     >    xxxxx ========== 
 T H E    |   |    \  |   |    <  Christopher J. Massa  >    ================
-------   `---' `---' '   `    / cjm9321@hertz.njit.edu \    ================
Newsgroups: rec.audio.car
From: brian@navaho.eel.ufl.edu (Brian Gentry)
Subject: Re: Simulation Software
Organization: UF EE Department (student)
Date: Sat, 3 Oct 92 23:13:58 GMT

In article <1992Sep30.180552.8592@zooid.guild.org>, Mark Kovarski <kovarski@zooid.guild.org> writes:
|> 
|> I would like to know if anyone has ever experiemented with PC software
|> that simulates enclosures and other criteria. I know of one piece of
|> software called "BlauBox" by Blaupunkt but are there any others? I
|> have not been able to allocate any PD/Shareware/Commerical software
|> that will do just that.

By now I'm sure you've heard about Perfect Box which is available at
a variety of anonymous ftp sites.  If you don't have ftp access, e-mail
me and I'll mail it to you.  As far as other PD software goes, almost
everything else I've seen is junk.  I have a program written in Basic
that is based upon work done by Don Keele (of JBL fame).  This progam
is not nearly as full featured as Perfect Box, but it has a better
excursion limit curve.

LEAP (Loudspeaker Enclosure Analysis Program) is generaly considered to
be the best program on the market.  Unfortunately the "stripped" version
is about $300 and the full version is $995.
 
|> While speaking of car systems, are there any books that cover high-
|> performace car audio installation? It seems like the only thing to
|> go by are the magazines such as Car Audio, Audio Security and Sound
|> (my favourite). I like those magazines but there are a few things that
|> I would add to make them even more interesting.

I've seen ads for "Killer Car Stereo On a Budget" in many magazines.  It
is also available from Madisound (and Zalytron too I think).  This is
supposed to be a good book, but I've never read it.

|> Any information is greatly appreciated.
|> 
|> Sincerely,
|> Mark Kovarski
|> E-Mail: kovarski@zooid.guild.org
|> 

			Brian L. Gentry
		   (brian@sioux.eel.ufl.edu)
Newsgroups: rec.audio.car
From: gianos@leland.Stanford.EDU (Edward Alexander Gianos)
Subject: Under-the-Floorboards Subs 
Summary: way cool idea!  Feasible?
Organization: DSG, Stanford University, CA 94305, USA
Date: Tue, 6 Oct 92 01:31:06 GMT


I read a bit ago about someone putting subs under the floorboards of a ferrari.
I assume this is the 'subwooferrari' article in the CA&E ads.

I got to me, what an infinitely cool thing to do!  I am driving a honda
hatchback, and am really bummed about losing most of my hatch for the
pair of my C-10s.  Since I have all year to plan my next upgrade...(being 3000
miles from my workshop is a hinderance)  I am trying to get really wild.
I digress...
 
Is this actually feasible?  I mean, a Ferrari is really low, and how was it 
done?  I assume some kind of 4th order box, out of MDF, covered in fiberglass,
designed to be very shallow.   I am really interested in doing this.  It would
give me my hatch back, and put the bass in a better place.
 
Would someone kindly post detailed details?  Or better yet, would someone
be willing to photocopy the article and send it to me?
 
Keep the wild ideas a comin' !
 
many thanks.....
 
Ed Gianos
gianos@leland.stanford.edu
From: vincent@garnet (Vincent Lee)
Newsgroups: rec.audio.car
Subject: Re: Alpine car pull-out CD-player forsale
Followup-To: rec.audio.car
Date: 1 Oct 1992 21:29:14 GMT
Organization: WSSG
Distribution: usa
NNTP-Posting-Host: tmf2mac23.berkeley.edu

In article <1afao8INN4ns@agate.berkeley.edu>, yeoel@soda.berkeley.edu
(Engling Yeo) wrote:
> Alpine 5903 car pull-out CD-player 
> One year old.  
> 8 x Oversampling
> 4-speaker output
> Pre-amp input
> Never installed in any car.  Was a gift and only used in the house,
> once in a while as I already have another CD-player.
> Mint condition.
> Asking $250 o.b.o.
> Reply by e-mail to this account or call (510)-525-0726.

I'm intersted and the fact that you go to Berkeley is even a bigger plus.
I'll buy it from you however I'd like to look at it first. Don't email me
because I haven't got an account as of yet. I work at the Davis, Tolman,
and Wheeler microcomputer facility. Give me a call if I don't give you a
call first 510-841-4942. Thanks.



Thanks


Vincent
From: hhtra@usho21.hou281.chevron.com (T.M.Haddock)
Newsgroups: rec.audio.car
Subject: Re: THE FINAL WORD ON POW
Date: 29 Sep 92 17:01:59 GMT
Organization: Chevron

In article <1a9rr1INNc0f@usenet.INS.CWRU.Edu>, kmr4@po.CWRU.Edu (Keith M. Ryan) writes:
|> 	Now, don't get me wrong. I use good quality cables, not because of
|> any mysticisms, but because they tend to be more flexible, and better insu-
|> lated. However, I buy mine at ~$.50/m. This is for 4 ga! And, I buy original
|> Monster Cable speaker wire 10 ga. for about the same.

 Say Keith, ol' buddy, ol' pal.  :)

 Don't keep it to yourself, let the rest of us know where we can get it too. 

 S'okay?  

 If ya do, I promise not to say another word about it!

 TRAVIS
From: n3hnr@hpb.cis.pitt.edu (Jason Galanter)
Newsgroups: rec.audio.car
Subject: Car audio equipment for sale
Date: 1 Oct 92 04:01:18 GMT
Organization: University of Pittsburgh
Originator: n3hnr@hpb.cis.pitt.edu

I have the following Car audio components for sale:

SAS Bazooka Bass tube 8" version
HiFonics Cyclops 100 Watt Bass amplifier
Acoustic active crossover network


Contact:  Jason -    n3hnr@hpb.cis.pitt.edu or 412-521-6042

All equipment is in gauranteed working order.

-- 
Jason Galanter / N3HNR      | n3hnr@hpb.cis.pitt.edu 
322 Mall Blvd., Suite 306   | galanter+@pitt.edu 
Monroeville, PA 15146       | 
(412)521-6042               | * How's that for an information-only .sig? 
Newsgroups: rec.audio.car
From: bell@asdsun.larc.nasa.gov (John Bell)
Subject: Re: Need Help W/ ISOBARIC Box Design!
Organization: NASA Langley Research Center, Hampton, VA  USA
Date: Fri, 2 Oct 1992 14:54:02 GMT

 In article <1a4ohiINN45r@usenet.INS.CWRU.Edu>, ae454@cleveland.Freenet.Edu (Paul Simundza) writes:
|> (...)
|> Anyways, I hear Isobarics would be a good solution, what i need to know
|> is some info on these boxes(Design, shape etc...) and possibly how to 
|> figure out the dimensions knowing the space in the hatch...LIke the
|> Car audio Stores do|>
|> (...) 

  If you have an IBM-compatible PC, you can use Perfbox to design isobaric enclosures just like regular sealed or vented enclosures. Somebody just put up a post a few days ago about where to get Perfbox, so e-mail me if you need to know where to get it.

-----
John Bell
NASA Langley Research Center
bell@haloe.larc.nasa.gov
Newsgroups: rec.audio.car
From: brian@navaho.eel.ufl.edu (Brian Gentry)
Subject: Re: Wanted-->Help with a folded horn design subwoofer box?
Organization: UF EE Department (student)
Date: Sun, 4 Oct 92 00:07:22 GMT

In article <BvID8D.6qK@cs.dal.ca>, jsmith@ug.cs.dal.ca (Jeff N Smith) writes:
|> Help!
|> 
|> I am looking for any information on designing a folded horn subwoofer box.  I would
|> prefer a computer program but any information would be useful.  I have Perfect
|> Box 4.56, Rockford Fosgate Installers Guide (this is where I saw the design)
|> and the Stillwater Designs (Kicker) Speaker builders guide and none of these 
|> have any information.

There was an article in Speaker Builder about a year ago about building
a folded horn enclosure.  It included equations for the volume of the
rear chamber and equations for the low frequency cut off point.  The
low frequency cut off point is inversely related to the area of the mouth
of the horn.  The larger the area, the lower the cut off.  Someone read
the article and wrote a Pascal program to compute all of the equations
in the article.  He also wrote a module in the program that prints out
what the cross-sectional area of the horn should be at various distances
from the driver.

I got this program (with source code) as part of a file called JBL.ZIP
at the Madisound BBS.  If you are interested, e-mail me and I'll uuencode
it and mail it to you.
   
|> This type of box is odd in size (unusually large) but will play VERY LOW.

See my above comments about low frequency cut off.  The trick in a car is 
to get part of the car to act as one of the folds in the horn.  That way
the cross-sectional area of the horn is equal to the cross-sectional
area of your car.
 
|> Finally I would like to know if there are any other computer programs
|> available other than PerfectBox, Kicker mention one called LEAP.

See my previous post about simulation software.
 
|> Any information on complex enclosure would also be appeciated (isobaric,
|> band pass, 6'th and higher order, folded horn etc.).

I wrote a short tutorial on the design of 4th order symetrical bandpass
enclosures (commonly mis-reffered to as 5th and 6th order).  I can send
that to you if you're interested.  If you really want to know about the
various kinds of bandpass enclosures, Earl Geddes wrote an article in
the May 1989 issue of the JAES (Journal of the Audio Engineering Society).
It doesn't contain any "design" equations, but it discusses all of the
various types of banpass enclosures including those with external filters
(that's the only way to get above 6th order).
 
|> Thanks for any help or suggestions you might have!
|> 
|> Jeff Smith		Dalhousie University
|> jsmith@ug.cs.dal.ca	Halifax, Nova Scotia
|> 
|> >>>IASCA Finals are only two weeks away<<<<
|> GOOD LUCK to those who made it there!!

			Brian L. Gentry
		   (brian@sioux.eel.ufl.edu)

Newsgroups: rec.audio.car
From: tom@dynamo.ecn.purdue.edu (Tom McCain)
Subject: Re: ALPINE SUCKS!! (still)
Organization: Purdue University, West Lafayette, IN
Date:  6 Oct 92 04:17:08 GMT

jl6p+@andrew.cmu.edu (Josh S Linder) writes:

: For
: a person that has never had a radio worth more than $100 in any car

: Alpines look neat and do neat stuff
: , but their quality has, basically, gone to shit.  Thanks for
: the info, though, I'll pass it along.


Your limited car audio makes you sound contradictory.  Maybe you
should purchase some Alpine car audio before you pass anything
along . . . .
--

Tom McCain 
tom@ecn.purdue.edu
Newsgroups: rec.audio.car
From: tom@dynamo.ecn.purdue.edu (Tom McCain)
Subject: Re: ALPINE SUCKS!! (still)
Organization: Purdue University, West Lafayette, IN
Date:  7 Oct 92 02:52:46 GMT

jl6p+@andrew.cmu.edu (Josh S Linder) writes:

: True, I don't know a great deal about car stereos.  I know what works. 
: What works for the price.  What sounds decent in a car.  In order to be
: "fluent in car stereos," shall I go out and buy every one, learn the
: difference between a 6x9 two-way and 9x9 three-way, and then report back
: to you.  I'm not trying to start any argument here, but my past
: experience dictates that Alpines are overpriced for only a name,

I understand, but I have had and currently have several Alpine
products.  I don't really see them as expensive personally.  However,
I do think without a doubt that Alpine on an average is one of the
best car audio products out there.  That includes durability as well
as sound quality. I'm also partial towards A/D/S, but their not cheap
either. 

: Blaupunkt radios tend to be moronic (the buttons on my Seattle were the
: size of an eraser on a pencil and the auto reverse button would (at
: will) eject the tape (it wouldn't do side 1 -=> side 2 -=> eject, it
: would do side 1 -=> eject or side 2 -=> side 1 -=> side 2 eject (you get

If that's what you want fine.  But I prefer to install the component
and then enjoy it.  Not rip it back out because it never works right.

: the idea).   Pioneers are perfect for what I need; if I need a CD
: changer, the radio has the logic; if I need more power, it has the
: capability to have the amp put in, and so forth.

Hey, I'll be the first to say that if you like it, buy it.  But I like 
Alpine because Alpine has been *very* realiable for me over the last
ten years or so.  I'm not knocking what you buy, but I am saying that
if you've never owned a particular brand of equipment than maybe you
withhold passing judgement on it.
--

Tom McCain 
tom@ecn.purdue.edu
From: cb4f+@andrew.cmu.edu (Carey Alan Baird)
Newsgroups: rec.audio.car
Subject: Re: Wood for Subwooferd
Date: 1 Oct 92 14:04:53 GMT
Distribution: usa
Organization: Freshman, CIT general, Carnegie Mellon, Pittsburgh, PA

In the past I have been quite successful using 1/2 in. plywood with a thin 
coat of fiberglass resin to seal the box. Make sure that the subs fit tightly
into the boxes and all seams are sealed.

Carey
From: miliu@sdcc13.ucsd.edu (zaphod beeblebrox)
Newsgroups: rec.audio.car
Subject: Re: Input Jacks
Date: 26 Sep 92 05:48:23 GMT
Organization: University of California, San Diego

In article <1992Sep25.150334@zapruder.UCSD.Edu> dlou@ece.ucsd.edu writes:
>In article <6232@blue.cis.pitt.edu.UUCP>, macman+@pitt.edu (Dennis H Lippert) writes:
>My Sony Unilink cassette/radio has a set of RCA inputs destined for
>a Unilink CD changer (CDU300/500) as well as RCA outs for front and rear.
>Has anyone tried plugging something into these inputs without connecting
>the Unilink bus?  Is it necessary to spoof the Unilink bus?  Anyone know
>how to spoof the Unilink bus if it is necessary?
>I would rather connect a *single* disc player in the front rather than a
>changer in the back.  (or I would like to connect my portable CD player
>without using those horrid dummy cassettes)

I have a Technics head unit with rear "AUX" input.  It is an 8-pin
DIN jack.  I want to hook up my portable CD player to it.  I wonder
if these DIN connectors are proprietary or, if I were to get a
changer/head unit combo, for instance, if I can get two different
brands if both use the same connectors.  Someone should market a kit
for converting these inputs to standard RCA.

			Zaphod
Newsgroups: rec.audio.car
From: mike%jim.uucp@wupost.wustl.edu (Mike S.)
Subject: Re: Subwoofer drivers (10") -- Pioneer, Pyle, Crunch
Organization: BITS, St. Louis, MO
Date: Wed, 07 Oct 1992 04:38:33 GMT
Keywords: subwoofer woofer speaker driver car audio pioneer pyle crunch


> Don't the Pyle's, Pioneer's, and Crunch's tend to be more BOOMY
> rather than TIGHT?

I just tried the Pioneer, and it is -MUCH- cleaner than the Pyle.
I also received several positive recommendations for Kicker C-10's.
They are said to be very clean and tight, so I may have to check
one of those out.  The pyle is out for sure, though.

> I would recommend JL AUDIO's 10" -  10W1.

>      Vol:   1.65 cuft  (18" x 15" x 12" box - external)

Sounds good, but I need something that will be happy in a ~0.9 cubic
foot enclosure.  I think the Kicker may fit this.

> Hope this helps.

Hey, it all helps--keep it comin'!

Mike
-- 
mike%jim.uucp@wupost.wustl.edu
Newsgroups: rec.audio.car
From: rjwade@rainbow.ecn.purdue.edu (Robert J. Wade)
Subject: DAT, DCC
Organization: Purdue University Engineering Computer Network
Date: Mon, 28 Sep 1992 14:30:44 GMT


does anyone know if/when these will be available for car units?
i once saw an ad for a DAT unit but since then nothing.  also will digital
compact cassette(DCC) ever appear...or is this just another one of those
popular science article things that never really happen???
please send email since i don't read this group much.
Newsgroups: rec.audio.car
From: miles@ms.uky.edu (Stephen D. Grant)
Subject: Re: Under-the-Floorboards Subs 
Date: Tue, 6 Oct 1992 18:11:04 GMT
Organization: University Of Kentucky, Dept. of Math Sciences

A local installer (Auto Sound in Lexington Ky.) did a Toyota truck a couple
years ago that had the subs "vented" through the floorboards.
There were 2 18" subs mounted in the bed (also vented through the bed-wall
and the rear cab-wall). They ran 6 or 8" PVC tubing from the subs to directly
underneath the floorboards. The same truck had an in-dash 8mm Hifi VCR and
was complete with Nintindo controllers in place of the ashtray.
Just thought I'd pass it along even though it doesn't help you with your
questions much.
From: hhtra@usho21.hou281.chevron.com (T.M.Haddock)
Newsgroups: rec.audio.car
Subject: Re: speakers and enclosures
Date: 1 Oct 92 23:14:18 GMT
Organization: Chevron

In article <1ab2qmINN360@bigboote.WPI.EDU>, walkerr@yaya.WPI.EDU (Robert A Walker) writes:
|> 
|> I've got two realistic 12 inch subs.  Go ahead, i know they aren't 
|> the best or even great, but I am on a seriously restricted budget an i 
|> picked them up for 50 bucks when a friedn of mine upgraded.  Now my 
|> question is I put the statistics for these speaker into the equation
|> Qts^2.87 * 15 * Vad and came up with a volume of 12.414 cubic foot 
|> ported enclosure.  Now is thi{ reasonable or is the equation wrong.
|> Qts = .38
|> Vas = 13.3

  I think our problem lies with that huge Vas number.  Notice that the
  RS 8" DVC woofer only has a Vas of 1.7 and only requires about 3 cuft.

  I must call upon the powers that be - net.wisdon  - JC, Rob, Keith?

  Most of the Free-Air speakers I've seen have large Vas numbers. 
  Most of the others do not.  Car Stereo Reviews Tom Nousiane (sp?)
  was building a box for the Kicker C-10 and referred to its Vas
  of 4.3 as being "quite large".

  The RS Book gave the following formulas for Acoustic Suspension
  Enclosures:

           Qr = Qb / Qts
  
           Vr = Qr^2 - 1

           Vb = Vas / Vr

  Qb is suppose to be optimum around .707 but can be used up to 1.5
  .707 yields the flattest frequency response while using numbers 
  approaching 1.5 tend to produce a smaller box that will emphasize
  higher frequencies (BOOMY is what I think that means)

  Anyway, Qb of 1.0 would be a good compromise so:

     Qr = 1.0 / .38 = 2.632

     Vr = (2.632)^2 - 1 = 5.925
 
     Vb = 13.3 / 5.925 = 2.24 cuft   (much better)

  Using the "Golden Rule" of 0.6 : 1.0 : 1.6 ratio yields a box -

     9.625" x 16" x 25.687"

  But use any size that'll fit your available space as long as it
  is approximatelt 2.24 cuft in internal volume.

  Hope this helps.  :)

  TRAVIS
Newsgroups: rec.audio.car,misc.wanted,isu.market
From: fagundes@iastate.edu (Alex Fagundes)
Subject: WANTED: 6x9 speakers
Organization: Iowa State University, Ames IA
Date: Mon, 28 Sep 1992 00:27:23 GMT

Hi,
  I'm looking for 2 6x9 speakers at a reasonable price.
thanks..

-----------------------------------------------------------------------------
|  Alex Fagundes -         Proud owner of a 76 Maverick :) and another      | 
|  fagundes@iastate.edu  -          believer that AMIGA rules               | 
-----------------------------------------------------------------------------
From: thumper@garfield.catt.ncsu.edu (Chris Mojica)
Newsgroups: rec.audio.car
Subject: Could someone please repost the info on building speaker boxes
Date: 27 Sep 92 19:41:15 GMT
Distribution: rec
Organization: North Carolina State University

-Chris
From: hhtra@usho21.hou281.chevron.com (T.M.Haddock)
Newsgroups: rec.audio.car
Subject: Crossover Info
Date: 29 Sep 92 17:46:45 GMT
Organization: Chevron


  I just got my Pacific Accessory Corporation (PAC) catalog.

  It's more like a 50 page technical manual with a few product
  advertisements than a product catalog.  It's got stuff on:

     How to add subwoofers, woofers, and tweeters
     How to use 1-way, 2-way, 3-way crossovers
     How to pick the crossover points
     Active crossover info
     Passive crossover info
     Charts, Diagrams, and Formulas, oh my!

  Of course, some of this is also covered in the FAQ but not
  the nice diagrams.
 
  If you want one, it's free, call PAC @ 1-800-854-3133  
  The operator will ask for your city & state.  She'll then
  give you the number of the nearest distributor.  Call the
  distributor and he'll send you the catalog along with the 
  the locations of the dealers in your area that carry PAC 
  products.

  Awww, sucks!  No prices or ordering info was included.  :(
  I quess they only sell through dealers.


 TRAVIS
Newsgroups: rec.audio.car