Usenet Info on Speakers

I snipped this information from various usenet postings on rec.audio.car. It contains opinions posted on what I was interested in at the time. For more complete postings or other information please see: Dejanews or RAC Search .
Thanks for everyone's help!

>         In your opinion, the subscribers of rac, which of these two
> companies makes better coax speakers and separates? Also, what is a fair
> price for each of their 5 1/4" separates and 6 1/2" coaxials? Thanks..
>
> Fawaz
> fhabeeb@chuma.cas.usf.edu

In my own opinion (for whatever that's worth), the a/d/s/ 325im (the im
stands for integrally mounted) is much much nicer 5 1/4" than MBQ coax
speaker.  If you are looking for 5 1/4" separates, I would go with an
a/d/s/ 325 is (5 1/4" separate) and A6im (6 1/2" coax)

Chris Zona
President
posh mobile installs
posh19@idt.net

>price for each of their 5 1/4" separates and 6 1/2" coaxials? Thanks..
>
        Although many people swear by MBQ's, I PERSONALLY!  think that
the a/d/s 5.25 are better for overall sound quality.  I think that they
sound much more realistic.  If you are considering both of them, GO AND
LISTEN TO THEM!  After all, YOU are going to be hearing them in YOUR
car.  Good luck.  Both are excellent speakers.
        Prices, I'm not really sure.

-sb

-------

Both are excellent speakers.  They do have totally different sounds - it
is up to your ears to decide which is better for you.   The ADS A6im
coaxials are great speakers, a lot mellower (?) than the Quart.  ADS has a
new set of 5 1/4" seps coming out with radical construction techniques,
they will retail somewhere around $1200.00.  A lot of folks think that
Quart are bright or harsh, due to their aluminum tweeters, but they sound
fine to me.

------------
 
> A lot of folks think that
> Quart are bright or harsh, due to their aluminum tweeters, but they
> sound fine to me.

Not that it matters, but aren't Quart tweets titanium?
-
Peter Lufrano - Owner
The Autophile
http://www.TheAutophile.com

---
What kind of tweeter is the Radio Shack unit?  Look for an Aluminum tweeter
if you want brightness.  You can get some decent tweeters for very little
money...check around at your local audio shops.  MBQuarts are very bright.
 
----

I replaced them with Boston Acoustics Pro 5.4 separates and there was a
MASSIVE difference in sound quality.  Ignoring the difference in high
frequency response (premium separate tweeters in the BA Pros that cost 50%
more that the entire Kappa 42i speaker), the midrange/bass response
difference is like night & day.  I run the 5.4's with a 90Hz cutoff and they
are still clean up to the full output of the amplifier.
 
----

Nick Smith: >Best 5.25 mids?                                 17 Apr 1997 02:04
I have 2 sets of eclipse speakers in my doors, sounds great, I think around
$90 per pair.

----------

Ugghhhhh...here we go again.  I use a set of MB Quart 160.03 KX coaxials
in my competition car (1995 Nissan 240 SX SE); this is my entire front
stage.  At the Daytona Spring Break Nationals a few weeks ago, after
about 60 cars had gone through the lanes before me, the judges got out
of my car and said (direct quote) "This car has the best sounding high's
we've heard all weekend."
 
-----

I am hoping to use a Punch 60x2 to power my Boston Rally RC61's in the
front and a pair of midbass drivers for rear fill.  The 2 channel punch
amp will be parallel wired to the four drivers (2 ohm stereo).  Using
this wiring config I will obviously have no fader control between the
front and rear, and the imaging will inevitably be terrible.   My
question is does anyone have any idea as to whether I can use an in-line
passive band-limited filter (200Hz-3kHz)/volume attentuator for the rear
drivers?  Does anyone know if such a thing exists? Should I just scrap
this penny saving and buy another 2 channel amp to get the results I
want?  Or... should I just forget the idea of rear fill and stick the
extra pair of midbass drivers in the front?

Any ideas would be greatly appreciated!
--

Well a combination device doesn't (at least not to my limited
knowledge) exist but just simply use a stereo L-pad for volume
adjustments (resistors can work too but it will be fixed rather than
adjustable.  For the pass band filter use a coil to limit the highs and
a cap to limit the lows.  A simple first order should do just fine.

--Gordon Lau
 _

Why not just use the rear channels off your head unit?  Assuming it's not
pre amp only...

Shit.  I assumed again.

=-=Andrew

-----------

Boston Acoustic Pro speakers are better than regular.

------------

I also found a deficiency in response between about 100 Hz to about 
250 Hz with the 4" speakers and the subs.  I added a pair of Kicker 
F6.5 crossed over to provide between 100-350 Hz response.  HUGE 
difference.  I just have them in boxes, now, but I'm building 
enclosures for them.  I also noticed that my high end has cleaned up, 
due to the fact that I'm no longer trying to reproduce bass with my 
4" speakers, just mid range and up.

-----------

From: peymaan@bu.edu
Date: Thu, 8 May 1997 12:25:46 -0400 (EDT)
Subject: Kick panel speakers

Tim:

There is no question that imaging is much more solid and improved with custom
kickpanel pods, but there are still 2 problems. The first is that there is
actually very little room in the Supra for this. Build a kickpanel and you
have to rest your foot on the panel half the time. Its not impossible, its
just that the factory panels extend into the floor area quite a bit
already. If someone is willing to put themselves through this then yes, you
get better imaging. The second thing is that bass does not really improve. You
still cannot make a good enclosure for the woofer down there as it is far from
being solid OR sealed, and the cavity is too small to allow the woofer to make
any decent bass. Kickpanels work well for mid/highs, thats it. Again, it does
not matter if you put a 4" there or 1 6.5", you won't get any more bass at all
due to the enclosure.

I still think even if kickpanel pods were done, there would have to be a
midbass driver of some type in the door, preferably the lower front of the
door near the pods.

Dave T

--------------

This is true in the '91 and '92 even when adding quite a bit of extra power.
MikeK and I are both using the 6.5" spearates that come stock in the later
models and after adding a subwoofer, they are more than adequate for all but
the audiophiles.  The key is to offload the bass from them which allows them
to better reproduce mid-bass (from about 80 to 100 HZ) on up and use a quality
amplifier.

I'm using a Crunch 4x50 to drive the stock speakers from an apline cd head
and 11 band 1/2DIN equalizer w/ crossover.  Those of you at the Midwest meet
most likely heard DaveM playing with (and getting jealous of) it.  =)

------------------

>From: will 
>Newsgroups: rec.audio.car
>Subject: one damn nice system i saw today
>Date: 21 Jun 1997 23:49:10 GMT

With all the really complex installs i've seen lately... this system
really refreshed me.. and was one of the best sounding systems I've ever
heard.  It was in a 93 Maxima, and consisted of just a Sony CDX-C910 Head
unit, a Xtant 3300c amp, a MB Quart 335.02CX component system (musicomp),
with the tweets and mids in custom built kick panels and the 8s in the
doors, a Boston RC67 component set in the rear deck, driven off the
passive output from the Xtant, and a single Dynaudio MW180 sub in a
fiberglass enclosure in the trunk.  No EQs, no line drivers, no external
crossovers... sounded phenomenal... crisp highs, smooth mids, good tight,
powerful, clean bass, but not excessive...  Never been too impressed by
Quart in the past, but that install sounded damn good... the attention to
detail was incredible, and the imaging must have taken days or weeks to
get right.  If i ever get sick of bass, and decide to go to a more
audiophile system, i'd consider going with the Dyns... My 3 JLs are very
accurate and tight, but didn't quite give me the incredible detail of the
MW180 on some tracks... of course the dyn didn't quite have the big low
extension of the 15" JL either... or too much output.. and it didn't like
some sorts of music very well, but it was still a phenomenal woofer for
musical tracks.  Also, those 8" in front gave incredible midbass
response... If i was going to do this myself, I woulda used a single
Phoenix Gold cyclone in back instead of the MW-180, IMO a perfect touch,
but hey...  Overall, an incredible system, and if anyone is thinking of
spending alot of time on an install they should consider some of this
equipment.
1992 Typhoon:
Denon DTC-950R
Phoenix Gold: ZX350, ZX200
Precision Power A1200.2
Dynaudio System 240 MkII
3xJL 15W6

------------------

I wish to revise my earlier post saying I had listened to a lot
of different types of speakers and prefered MB Quarts. 
Once they (4" coax as seperates and 6.5 coax rear)
were installed in my car they sounded different than in
the showroom and the tweeters up front were irritatingly harsh to my ears.
And to two other people who listened. 
Ok Im a damn idiot, so sue me!

Aside from the upper end harshness the speakers actually have 
good sound reproduction qualties. People here have posted of installs
where they sounded good. I think therefore the sound you get
from them depends on the car and its acoustics and the placement.
Its not for every car. Anyway, I went back to the installer 
and explained my problem with the speakers and they
suggested the musicomp crossovers. Short of removing
the speakers and having something else put it this was a more cost
effective solution. So they did that. Now the irritating highs have been
dampened. The highs come thru as cleaner and subdued. While the
system sounds good, I may go with a/d/s or some other speakers in 
future cars.

David

>From: .edu (Joe Williams)
>Newsgroups: rec.audio.car
>Subject: Re: Revision of earlier post re MB Quarts
>Date: Thu, 26 Jun 97 02:36:25 GMT
>Organization: University of Houston System
>Lines: 30
>Message-ID: <5osk30$saj$1@Masala.CC.UH.EDU>
>References:  <33B1C381.19F8@epix.net>
>NNTP-Posting-Host: green.uhsa.uh.edu
>X-Newsreader: News Xpress 2.0 Beta #2

This is somewhat my experience too.  The MusiComp crossovers help but I still 
have to tweak the response above 4khz with my EQL to get a sound I like.  On 
quality recordings there is no real problem the sound is lively but not harsh 
but on a lot of recordings (average recordings) the high end can get 
harsh/abrasive esp. when the volume is turned up.  If I overcompensate with 
the EQL the sound becomes too flat and lifeless.

Joe

In article <33B1C381.19F8@epix.net>, @epix.net wrote:
>zmax@fuspammers.world.std.com wrote:
>
>> Anyway, I went back to the installer
>> and explained my problem with the speakers and they

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