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Old 08-02-2009, 11:35 AM   #7
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edevlin's Avatar
Join Date: Jul 2006
Location: Virginia
Posts: 916
"With the inheritance of the $800 amp, I am likely going to invest in the JL Audio 10W7 and box materials. The battery is right there for us to tap into and my deck (a pioneer AVIC-N3) has preouts for subs built in. Any thoughts/ naysayers / ideas? We are just going to do a square box with black carpet which will be easily removable."

I have also played with audio systems quite a bit, both in the home and in cars. In fact, I sold my home high-end audio system and used the money to pay cash for my 2000 boxster. I have been a big fan of the JL Audio Slash-series amps, I used to have a pair of them powering the audio system in my Boxster (now replaced by a pair of Alpine amps), and I still have a pair of them powering the audio systems in our family Forester and Saturn.

I have a JL Audio 10W7 that I built a custom box for that I use in the forester, powered by a JL Audio amp. It sounds very good in the Forester, but not in the Boxster. I hooked up the sub with the JL Audio amp in the front trunk, just to hear what it sounded like. I made no attempt to make an opening between the trunk and cabin for the test.

I was running JL Audio speakers in the dash, rear and doors powered by a dedicated 4X75 JL Audio amp. I was powering the sub with a 300 watt mono JL Audio slash amp, a little under-powered for that driver, but works ok. At the time I was running a large Optima battery. The speakers in the cabin sounded very good, but the big sub sounded quite bad up front, could not get good resolution no matter what crossover frequency or slope I tried. I expected as much, I just tried it because I had the sub and extra amp around to play with.

As you probably know, if you are going to make a more serious attempt to make the sub work in the front trunk, you need to have an opening between the trunk and cabin to carry the pressure wave into the cabin, at least if you want a any serious fidelity. Ideally something like the James Audio "power pipe" subwoofers that use a heavy flex tubing to carry the sub pressure wave from the sub box to to where it is needed in the home (used in custom installs).

I and several others on the forum have had very good luck with a little JL Audio 8" sub in a custom fiberglass enclosure installed in the passenger footwell. I know you said you are not a fan of that location. It does not give deep bass, but fills in nicely down to about 40 hz or so. They are pricey, I think I paid 500.00 for mine, but it is very well built and does not take up that much floor space. Have fun,


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2000 2.7L Boxster 102K; TTP intake, headers, high-flow cats; Dansk high-flow muffler; Autothority ECU chip; TechnoTorque 2; Bilstein coilovers; Racing Dynamics strut brace; stress-bar suspension kit; Aasco lightweight flywheel, B&M short shiftkit; 18" wheels; spare tire delete; OEM GT3 seats; JL audio speakers and subwoofer; Alpine PDX-5/PDX-2 amps; Kenwood DNX8120 CD/DVD/Nav; litronics, deambered
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