Miata Mailing List: July 1997, Message #10
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From: 	"Kevin Morrison" <canyon3@ibm.net>

Subject: Sub install and web page update.

Date: 	Tue, 1 Jul 1997 19:17:31 -0500



Warning: boring audio stuff to follow, delete now if not interested...



Is it just me or was the list just down for 4 days?  Anyhoo, since I had a

lot of spare time over the weekend, I decided to install a subwoofer in

Buster.  Since I am not particularly an audiophile and wanted a reversible

installation, I decided to go with the SAS 6.5 inch Bazooka Tube sub.  I

already had a Pioneer DEH-42 CD head unit with Pioneer 5.25 inch 2-way door

speakers, but I wanted to hear the bass at speed with the top down.  I

bought the sub along with a Sony 4x50 watt amp with built in crossover.  I

constructed a mounting board out of two sheets of Lucite material.  I just

used nut and bolts to join two 1/8" sheets into a 1/4" sheet (the result

looks cool).  I then mounted the amp and the sub on the board so I can just

disconnect the wires and remove the assembly as one unit.  After putting

the sub/amp assembly in the trunk and realizing that I didn't cut the

Lucite right, I cut it down a bit and now the whole thing sits right down

in the depression in the bottom of the trunk.  The whole process of wiring

the amp took about 4 hours and I spent another 5 hours or so making the

Lucite board.  The result is a very clean, removable installation that

doesn't eat up too much trunk space.  The sound? Well, I totally expected

the Bazooka to be a little boomy, and it is. But that can be minimized

through proper adjustment of levels and crossover points, which I am still

doing, and possibly some stuffing of ports, , but I am very happy with the

increased bass response (it will shake the whole car).  I bridged channels

3 &4 on the amp which is supposed to produce 130 watts continuous for the

sub. I am driving the door speakers with channels 1 and 2 on the amp and

the headrests are still powered by my head unit (15 watts).



On a related subject, I have updated my web page, adding a few pictures of

roadsters from around the world (MGF, Fiat Barchetta), and I have added a

page recounting the mods I have made to my Miata.  Pictures of said mods

will come soon, just follow the link about half way down the front page at

the address in my sig line.  Sorry in advance for the excessive amount of

graphics on the front page, it will be slow to load on some machines.



Kevin Morrison and Buster, '92 Black and Tan

Tampa, Florida

SunRiders #134

canyon3@ibm.net

http://www.geocities.com/MotorCity/Downs/2446