Re: Audio nuts only

["Mike" <lerb@redrose.net>]

I have a three way system in the front with a  6"1/2, 5"1/4, and a titanium
1" tweet in each door powered by a 4X50 PPI. All of this is driven by a Sony
deck into a parabolic divider.....No actually I do not have a loss of sound
Q in the front...but then again I do not think many peoples front stage is
so indepth. I have seen it many times in competition when a guy will try to
enhance the week spot of his car by boosting another area of the car. Never
made sense to me and nor does it to judges or a RTA. Do your front sound
stage right and don't waste power to the back. I would rather spend money on
a good set of speakers than two ok ones and place all my money up
front.....JMO....

BTW anyone want to but a Opti 500? I need to get more power to the isoberics
in the back 500 watts does not cut it anymore
----- Original Message -----
From: Andrew Holmes <aholmes@chubb.com>
To: Mike <lerb@redrose.net>
Cc: <bgsterling@earthlink.net>; <scirocco-l@scirocco.org>
Sent: Friday, June 11, 1999 10:46 AM
Subject: Re: Audio nuts only


> Don't you find that without rear speakers it is very difficult to get a
good
> volume/bass combination bearing in mind the front aperture is 6*4 only. I
use
> custom Pioneer 6*4 midrange and custom 1" Pioneer tweeters running at 80hz
+ and
> 40w per channel pure (100wRMS). I found that using just the fronts would
give a
> good soundstage but no depth and a lack of bass. If i allow a lower
frequency
> say 50hz to run through the fronts then i get depth at the expense of
power
> handling as the 6*4 units struggle to deliver any bass/volume combination
and at
> motorway speeds (85mph) the bass disappears as the road/wind/engine noises
drown
> it completely.
> I appreciate the back speakers provide your back seat passengers with
excellent
> sound but the purpose of a quality car audio is to balance the sound
against the
> deficiences of the enviroment (a steel box not being the best acoustic
platform)
> so ideally you should centre the sound and imaging approxiamately above
the
> gearstick/slightly to your front and to do this including a reasonable
(not
> neceesarily thumping) bass will require the back speakers.
> You are quite correct about the hatch creating a "megaphone" effect as my
JBL
> 6*9's can if i provoke them quite comfortably match my friends twin 10"
> Rockfords in a box in the back of his 325i but i generally like to end my
> journey without my ears bleeding and ringing.
> However if you are careful in selecting your components, use decent
cabling
> (this is very important and can make a huge difference) and are prepared
to
> spend time on a careful installation and setup then you can obtain a very
high
> quality sound without resorting to subs.
> In my humble opinion this can be acheived with the minimum of
> Head Unit
> 4 channel amp(with built in crossover)
> 4 quality speakers
> Good quality interconnect and speaker cables
>
> Lastly if you are running your'e power directly from the battery do put an
in
> line fuse on the cable as close to the battery as possible (mine is
strapped to
> the battery) which will probably save you a lot of cash in the event of
you
> making an error on installation or a short within the set up.
>
> Please note all of the above is based on my personal experience with a UK
spec
> vehicle and may or may not be applicable to US or other specs.
> I hope some of the above gives some background info which maybe useful but
a
> word of warning. Once you start upgrading the in car audio you are taking
the
> first step on a path where every upgrade will show up the weakest link in
your
> system thus prompting another upgrade and so on and so forth
>
> Enjoy
> Andy
> 91 Scala 8v
>
>
> Mike wrote:
>
> > Well as far as the ba ck speakers get rid of them...a good system only
> > eliminates sounds from behind you anyways...I like to think of it this
> > way...Where do you hear voices from? In front of you right? Well every
> > single voice you hear from the back you wil have to over power from the
> > front. So why have rear? Only reason to ever have rear is if you have an
> > audiance in the back. Actually another reason would be if you were goig
to
> > add a center channel but it does not look like you are about to do that.
If
> > you don't want thump stay away from a sub altogether. I think a good set
of
> > speakers up front will help your sound alot but I am not sure how you
are
> > going to avoid thump. Our cars have whats refurred to as a megaphone
affect
> > with the rear hatch reflecting alot of sound off of the glass and
actually
> > enhancing the sound pressure forward in the cab which makes any bass
> > produced from te rear sound like thump. I have had people ask me what
size
> > subs I had me when I only had part of my system installed in my car (4,5
1/4
> > Mb Quarts in the rear deck before I knew better than to put them there).
> > ----- Original Message -----
> > From: Brad Sterling <bgsterling@earthlink.net>
> > To: <scirocco-l@scirocco.org>
> > Sent: Thursday, June 10, 1999 12:21 PM
> > Subject: RE: Audio nuts only
> >
> > > As long as this is a thread for newbie questions...
> > >
> > > I'm wanting to add a small subwoofer and amp to the stock system in my
16V
> > > for a little for power (unh! Unh! Unh! (in your best Tim Allen
voice)).
> > >  From my research, it sounds like I need a 4 channel amp with low
level
> > > inputs (so I can connect the speaker wires in) and low/high
crossovers.
> > >  The idea is send the front speaker wires into the amp, two channels
out
> > > through a low filter to the front speakers and two channels bridged
> > through
> > > a high filter to the subwoofer.  The end result should be the front
> > > speakers handle the midrange/treble duties and the subwoofer handle
the
> > > bass.  Actually, now that I put this in writing, what do I do with the
> > rear
> > > speakers?  If I connect them to the same channels as the front
speakers, I
> > > lose fader function and if I connect them to the subwoofer channels,
I'll
> > > have the wrong filter in place.  Okay, I give up.  How can I put some
more
> > > power through the stock system without creating a car that thumps?
Should
> > > I just get an amplified bass tube and some inline low filters for the
> > > speakers?
> > >
> > > -Brad
> > >
> > > -----Original Message-----
> > > From: William J Erikson [SMTP:williamjosiah@juno.com]
> > > Sent: Wednesday, June 09, 1999 12:25 PM
> > > To: CAPTIANBR@aol.com
> > > Cc: scirocco-l@scirocco.org
> > > Subject: Re: Audio nuts only
> > >
> > > I'd say your best bet is to get an amp that has a built-in crossover
and
> > > is bridgeable. Crossovers filter out certain frequencies. Most
> > > bridegeable amps with built-in crossovers and designed to be used with
> > > one subwoofer, like you're planning on doing, so their crossovers
filter
> > > out high frequencies and send only the low frequencies to the
subwoofer.
> > > Bridgeable means you can send both channels, mono, to one subwoofer.
> > > Usually it's done by hooking the speaker to R- and L+ or something
like
> > > that - it varies. Some have a "bridged" switch, like my POS Legacy.
> > > Anyone have any opinions on Legacy, BTW? I bought one brand new for
$80
> > > and it worked great while it worked. 300W (150RMS), bridegeable,
built-in
> > > crossover, hey, sounded great. It died, but I guess that was because I
> > > mounted it to my rear deck and my speakers were mounted there too.
> > > Someone told me this will kill an amp. Yes? No? Sounds quite plausible
to
> > > me - vibration and all.
> > > HTH! (I don't know that much about audio either, really)
> > > -Josiah
> > > '84 GTI
> > > '87 QSW
> > > '86 Golf
> > > http://bork.hampshire.edu
> > > self-employed VW mech
> > >
> > >
> > >
> > >
> > > On Wed, 9 Jun 1999 10:29:28 EDT CAPTIANBR@aol.com writes:
> > > >I have just inherited a JBL 12" subwoofer and box. But I don't no
what
> > > >type
> > > >of amp to get for it or how to hook it up in the rocco.  I currently
> > > >have six
> > > >speakers off of a Clarion CD player.  JBL componants in the front and
> > > >pioneer
> > > >5 1/4 in the rear.  But I also have two rca outputs that are not
being
> > > >used,
> > > >Shoud I use these for the subwoofer?  What is a crossover and do I
> > > >need it?
> > > >As you can tell I don't have much experience with audio besides
> > > >changing
> > > >speakers. I have two rca's but only one subwoofer how will this work.
> > > >Thanks
> > > >in advance for any help.
> > > >
> > > >Brian 86 16v
> > > >
> > > >--
> > > >To unsubscribe, send "unsubscribe scirocco-l" to
> > > >majordomo@scirocco.org.
> > > >If you experience other problems, email:
> > > >scirocco-l-probs@scirocco.org
> > > >
> > >
> > > ___________________________________________________________________
> > > Get the Internet just the way you want it.
> > > Free software, free e-mail, and free Internet access for a month!
> > > Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
> > >
> > > --
> > > To unsubscribe, send "unsubscribe scirocco-l" to
majordomo@scirocco.org.
> > > If you experience other problems, email: scirocco-l-probs@scirocco.org
> > >
> > >
> > > --
> > > To unsubscribe, send "unsubscribe scirocco-l" to
majordomo@scirocco.org.
> > > If you experience other problems, email: scirocco-l-probs@scirocco.org
> > >
> > >
> >
> > --
> > To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org.
> > If you experience other problems, email: scirocco-l-probs@scirocco.org
>
>
>
>


--
To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org.
If you experience other problems, email: scirocco-l-probs@scirocco.org