This install has evolved over about 2 1/2 years. Originally, the factory head unit was swapped out with a Blaupunkt Miami and a 12" Kove was setup in a box behind the back seat. This provided plenty of SPL (especially with the top on). Eventually, Bostons replaced the factory speakers and a new head unit was put in after a roll over and total rehaul of the Jeep. The sub went through two amps, two boxes and two HU's before it was decided to focus on SQ, free up all that space behind the back seat and see if two 10's could fit in the wheel wells!
A basic run down of the system: Blaupunkt Alaska Head Unit, BostonAcoustic RS 4x6's (2), BostonAcoustic RS 6.5's (2), Planet Audio 1002 Amp, DEI Studio 3104 10" Subs (2)
1990 Jeep Wrangler with a 2.5" Tough Country Easy-Rider suspension lift and a 2" Performance body kit lift. The wheels are Eagle Alloy 15x8's fitted with 31x10.5 Scorpion Pirelli tires. Other modifications include Black Diamond shocks plus a turbo 3" exhaust from the heads back.
Here's a view of the front of the Jeep. You can see the chrome cow catcher with the KC off-road lights on either side plus the Warn 8000 winch in the middle.
This is where the system install starts. The Blaupunkt Alaska head unit powers the mids and highs and sends the signal to the amp for the subs through StreetWires Zero Noise patch cables.
BostonAcoustic 4x6 plates were placed in the factory openings in the front of the Jeep. To avoid being completely overpowered by the mids above your head, a slight fade increases the front imaging.
Two BostonAcoustic 6 1/2" midrange speakers are installed in a soundbar directly above each front seat. This puts the mids right where you can hear them.
The Planet Audio 100Wx2 amplifier provides the power for the subs. It's mounted directly beneath the rear seat. The subs are currently wired in parallel and bridged to the amp to see 2 Ohms and receive 450 watts RMS.
Two DEI Studio 4 Ohm 10" subwoofers are installed inside the rear wheel wells and are firing into the Jeep on both sides of the rear bench seat. This picture shows one of the subs by the side of the seat (in the shadow by the seat belt). Check out page 2 for more pics and info on the installation of the subs.
View of the right sub with the rear seat up. Each DEI subwoofer is protected with a Stinger 10" metal mesh speaker grill. You can also see the RhinoLining in this picture. The RhinoLining, which not only provides a custom look different from the usual factory carpeting but also acts as a major acoustical dampener, covers the complete interior of the Jeep.
This picture was taken minus the rear seat to show the full bass setup -- subs and amp. The grill was removed to show one of the DEI subs (on the left). The DEI Studios, purchased from SoundDomain, were chosen mainly because of there minimal requirements for box size, but also because of there polyurethane cones which will help in case of any water issues that might arise when the hard top is off. Again, notice the whole floor and insides of the Jeep are RhinoLined for a great look, easy upkeep and reduction in vibrations and road noise for higher quality sound.
Here you can see one of the stainless steel boxes inside the wheel well which houses the MDF subwoofer enclosure. To adequately clear the tires the enclosure for each sub is only .336 cubic feet (the MDF box dimensions are 16 3/4" L x 10" H x 6" W). The recommended minimum for the DEI's is .36 cubic feet. Just the right amount of polyfill solved this problem.
This picture is of the under side of the Jeep (directly below the rear seat). You can see the wires (above the upper left of the rear differential) that run from the amp. The Monster 10 gauge speaker cable for the subs and the StreetWires 8 gauge power for the amp were all individually lined in flex-tubing and then fully wrapped with high-temp electrical tape for protection.
In the rear view of the Jeep you can see the aftermarket extended "keep the cops happy" fender flares and the rear chrome bumper which perfectly compliments the front bumper.
The sound quality turned out great, especially for not knowing exactly what was going to happen when the install started, and the bass can pound when you want it to. Who would of thought you could ever put subwoofers inside a vehicles wheel wells!?