This speaker unit can be installed in A-pillar, kick panel, or in the car’s door.
A-Pillar
: The mounting in the A-pillar has too many variables depending on the
shape of the car to be briefly described. The fundamental bases to follow are the
distance and the inclination. The position of the UMA must be chosen so that
there is the least difference between the units and the front passengers. Normally
this position is near the dashboard. The inclination must be chosen so that the UMA
is perfectly aligned with the passenger on the opposite side, at the height of his
head. We strongly recommend that you do a few listening sessions before
permanently fix them.
Kick panel
: This choice involves the reconstruction of the kick panels with MDF
ones. The flat part where the UMA will be fixed must be oriented horizontally
towards the center of the car, between the two seats, and vertically at the height
of the passengers' heads. The UMA can be installed both with the tweeter facing
upwards as well as with it facing downwards (upside down).
Door
: Select a desired mounting location with an even surface. Tightening a speaker
onto an uneven mounting surface can damage it. Mark the center and the outline
of the speaker’s mounting hole. Use a utility knife to cut any fabric, vinyl or leather
from hole locations. After cutting the hole, check to see that the speaker frame fits
into its mounting hole cleanly.
Remove the speaker and drill 2 mm holes at each mark. Connect the speaker
wires, observing correct polarity, and be sure wires don’t touch any metal part.
Make sure the speaker is secured so that air does not leak around the mounting
flange. Hand-tighten the screws evenly in a criss-cross pattern to avoid bending
the speaker frame or stripping the mounting screw holes. Finally, mount the grille,
insert it into the grille gap, pressing around its edge until seated firmly in the gap.
WIRING YOUR SPEAKER
If you will be using the factory speaker wires, it may be necessary to change the
terminations. This may be accomplished by using an adaptor plug or simply by
cutting the factory connector off and using the crimp connectors to terminate the
speaker wires. The red mark connector is for the positive terminal and black mark
connector is for the negative terminal of the speaker. If you choose to run new
speaker wires, protect all wiring from sharp edges by carefully routing them, securing
them and using grommets and loom where appropriate. If you are running wires into
a door, use existing factory wiring boots whenever possible. If you are drilling new
holes, file their edges and install rubber grommets into each hole. Wires running
into car doors should be covered with a protective, flexible PVC sleeve. Make sure
that the wires will clear door hinges and other structures in the door.
This component need a crossover system, you can chose passive or active as well.
The crossover must be high pass type for the tweeter, and band-pass for the
midrange midrange. The minimum suggested cutting frequency is 100 Hz (mid)
and 1.8 KHz (tw) at 48dB/Oct slope, you can reduce the slope, but remember to
reduce the power driving or increase cut-off frequency respectively. These cut-off
frequencies are only suggested, right frequency must be calculated and tested
directly inside the car, and depend of speaker location, listening angle and car’s
passenger conformation.
