Click on any of
the pictures below to see a larger version.
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EARMARK specializes in the design and construction of corporate
promotional vehicles. Many of these vehicles are created for
mobile audio and video manufacturers or representatives. But
many others use graphics, custom installation, and audio/video
systems to bring attention to otherwise unrelated products
and services.
We built this Boston Acoustics vehicle to circulate between
car audio events throughout the five state area.
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Q-form kick panels were added for the Boston Acoustics 2-way
Pro separates. This placement positions the front speakers
as far away from the listeners as possible and reduces the
left to right bias thereby giving the best stereo image.
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A second pair of 6 1/2-inch drivers were placed in the doors.
These drivers operate in the midbass bandwidth only to deliver
a little extra midbass kick and to bring the bass image forward
so the rear subwoofers do not sound detached. |
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Ambient tweeters were installed in the windshield pillar trim.
These tweeters aim away from the listeners as to avoid localization.
The farthest tweeter is the most direct while the closest tweeter
is the most indirect which serves to equalize the left to right
amplitude. The ambient tweeters are sufficiently attenuated
so that they raise the image and create a sense of depth without
detracting from a balanced image. This works very well! |
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Two large Boston Acoustics amplifiers are flushed into the
top of the subwoofer enclosure. All cables, interconnects and
power distribution blocks are concealed. |
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The rear subwoofer
enclosure features four B.A. Pro 12-inch subwoofers. Each
of two V-shaped baffles are divided by a clear plexiglass
window which is edge lit with an internal neon strip. The
plexiglass dividers received an etched effect with Boston
Acoustics’ logos.
While vinyl and carpet matched the interior scheme, the woofers
and passive crossovers were set in a white laminate to accent
the exterior auto finish. The crossovers are covered with
a plexiglass window which sported a B.A. Pro .5 decal.
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The Boston Acoustics demo truck presents a true custom
installation that is also designed simple enough that most
consumers can afford it.
This system was also engineered so that the vehicle was
fully reversible when it was time to upgrade either the product
or the vehicle.
With four twelves, two very large amps, double midbass
and secondary ambient tweeters this system sounds great, hits
hard and delivers the lowest notes with ease.
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| Earmark Car Audio
©2004 Earmark Car Audio. All Rights Reserved.
Design & Programming by Ad
Cetera Inc.
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