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TWEETER MOUNTING
The tweeter mounting location has a strong influence on the staging capabilities of your com-
ponent system. Depending in which spot you fix your tweeters, you will also notice different vo-
lume levels in the treble region. The tweeter level can be adjusted by a jumper on the pcb bord,
to compensate for different places of tweeter mounting. Nevertheless, tweeter positioning does
affect the sound reproduction and staging quality of your component set to quite an extent, so
care must be taken to find a suitable place for the tweeters.
To determine the best tweeter location in your vehicle, it will be unavoidable to carry out short
listening tests, with the tweeters provisionally fixed in different places. Double sided self adhesi-
ve tape can be used for this purpose.
Recommended places for mounting the tweeters are the A-pillars, the window triangles or else,
as much up and in front as possible.
Attention:
Both tweeters are supposed to aim at each other. A direct “on-axis” installation, with
tweeters pointing at the listener is not recommended. Tweeters facing the listener are mainly
responsible for the “side-biasing” effect, where a proper staging of the sound on the dashbo-
ard can not be achieved, and the music seems to stick to the speakers.
Flat Surface Mounting
Two parts are needed for flat surface mounting. The main tweeter unit and the flat aluminum ring.
Mark and drill holes where you want to fix the tweeter. Three holes are necessary, one main hole
for the cable routing and two small pilot holes for fixing the base. You’ll need 3mm and 6mm drill
bits and a power drill. After drilling, mount the flat adapter ring to the panel, using the two self
tapping flathead screws. Feed the tweeter wire through the remaining hole and connect the twee-
ter extension wire to the main tweeter leads on the backside of the panel. Now you can place the
tweeter over the adaptor ring, gently press the tweeter down and turn it counter-clockwise, to lock
it in place.
Flush Mounting
After choosing a mounting location that offers at least 17mm clearance behind the panel, you
must cut a hole of exactly 49mm diameter. The cup adapter can now be inserted and fixed with
the spring blade and two metrical M3 screws contained in the hardware accessory set. Once the
cup is properly fixed to the panel, you feed the tweeter wire through the hole in the cup adapter
– insert the tweeter into the cup and turn it counter-clockwise, to lock it in place.
ECP25/26XT3 Manual 16.01.2003 20:22 Uhr Seite 10
