MyFi XM radio hardwire-modulated thru the factory system---love that XM!!
JLAudio 6.5" separates in front factory locations
JLAudio 500/5 running all speakers
JLAudio RBC bass controller in center console
Bazooka T102 10" tube in trunk
Monster Cable 4 gauge power kit, speaker wire, and I401 interconnects
a couple cheap LOCs to tie into the factory head unit
Basically I had all this stuff and wanted to get an improvement over the factory sound without spending a bunch of money. The T102 has been in 6 vehicles and is usually a stepping stone to a more permanent subwoofer setup. I Dynamatted the factory speaker housings and the doors, and ran enough preamp cables to accomodate any amp setup I'd use. This system sounds pretty good, and I now know I can live with the factory head unit long term.
Based on what I've read I will use a JLAudio Clean Sweep which does five key things-1. Corrects the EQ of the factory head unit. 2. Allows for a direct, non-modulated input for the MyFi, just like a home audio system. 3. Ties in the factory head to whatever amps I want to use with no signal loss. 4. Gives me 8 volts of output to the amp(s) for an excellent signal. 5. Allows me to set consistent volume levels between my MyFi and the factory head.
So far I'm happy with the 500/5 amp to run the whole system but that may change. I listen to jazz, old funk, rock, stuff like that and although I do like to crank it up I'm concerned about me, not the guy in the car next to me. So I don't need a ton of power to accomplish my stereo goals.
I've contacted a welder about reframing the gas tank cage to let me mount the amp against the gas tank. I'll cut out the trunk lining to fit the amp, then make a cover for the amp so it won't be visible with the trunk open, and so I can fan-force air across the amp.
Eventually I want to replace the separates with something like MBQuart QSD's (had them in last car) or Focal. Haven't decided yet, and it's not a focus since the JLs sound pretty good. And paid for! I will remake the door speaker mounts to give a more solid surface. MDF works great for this. If I can find a place for a 4" midrange I'll do three-way separates up front.
I will probably leave the rear speakers stock. I've had several cars set up this way and since I prefer a strong front soundstage I don't need to invest in rear speakers. When I was designing, selling, and installing car audio I used this formula with excellent results.
I'll sacrifice the tire well to accomodate a subwoofer, probably a 12". One is plenty for me. I have a Polk Audio MM1224 that will be installed next week, and that will give me an idea of what the next step will be for bass response.
I'm having the tire well fiberglassed in and braced with a removable top so I can easily swap out the sub when I decide on what I want long term. When I do this I'll Dynamat the trunk floor and trunk lid.
I plan to add a Monster Power Cap to give the bass some more punch.
My overall goals for the system are this:
1. Keep the factory head unit-I like the way it looks, it's paid for (me and GMAC), and I think with the Clean Sweep I'll get enough performance out of it.
2. Keep the trunk (and the car) looking as stock as possible. This keeps thieves away and is more impressive than a rolling sound system, IMHO.
3. Retain as much space in the trunk as I can. I have a pickup for bigger stuff, but the more I can fit in the GTO the more often I can leave the truck at home!
4. Have a system that plays cleanly, tightly, and crisply at any reasonable volume. INSIDE the car, that is. Imaging and a strong front soundstage are much more important tham sheer volume and boom.
5. Continue to take advantage of employee purchase options and do much of the labor myself. It saves money and I like to be able to say "I did that" when people are checking out my car. I spend my money on performance, not "bling" like neon, plexi, bright colors, etc. To each their own.
There are lots of ways to approach a sound system, and lots of different options. This is simply mine, and it's worked for me for 20 years.
Let me know what you think! I'm always interested in the opinions of others.
Last edited by vmax; 07-11-2005 at 10:33 PM.