3.1. Place the door lining on a plane surface.
3.2. Dismount the loudspeakers attached to the panel for transport protection.
Retain the screws for later assembly.
Place the panel without loudspeakers and grill on the door lining and align it:
3.3. remove factory installed tray acc. to fig
line (A) by means of a compass saw.
check for precise fitting and
remove overlapping parts of the
door-lining
All cutting edges of the panel
must fit to the door lining snugly
all around without gap
✍
8. Crossover circuit - Speaker connection
8.3. Insert subwoofer and midrange.
8.4. connect all loudspeakers to the crossover circuit with the included
standard cables for subwoofer to the crossover circuit:
parallel wiring see diagram on page 11.
Notice:
You should check the polarity of all subwoofers
before connecting them to the crossover circuit
with a 9 volt battery:
pole of the crossover circuit input to of a 9 Volt battery
pole of the crossover circuit input to of a 9 Volt battery
All subwoofers must move uniformly!
Wrong polarity of a subwoofer can totally
equalize the bass sound!
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75149 - BMW Z 3
- 10 -
© JEHNERT SOUND DESIGN
75149 - BMW Z 3
- 5-
© JEHNERT SOUND DESIGN
3 . Panel alignment
Reference points for fitting:
Only precise alignment of the panel with the door
lining warrants optimal fit.
3.4.
Reference line 1:
the lateral front panel edges and the upper panel edge has to be aligned flush
to the inlet edge of the door lining
3.5
.
Reference line 2:
the lower edge of the panel is parallel to the lower edge of the door lining.
The back upper panel edge is flush under the extending part of the door handle.
3.6.
Reference line 3:
the short lateral panel edge (on the midrange) has to be aligned flush to the
door handle ( see fig.).
�
�
�
�
✚
✚
Reference line 1:
lateral and upper panel
edges are flush to the inlet
edges of the door lining
Final inspection after panel installation:
please check all functions of the operating elements such
as seat adjustment, opening of the glove box,
window winder etc.
8.1. precable crossovers - see fig. page 11.
8.2. installation of crossover either
• behind the dashboard
or alternatively
• behind the panel - between the two front woofers and the above midrange
- without housing, covered with foamed plastic*, insert the crossover and
check for precise fit
*Important: protect the sheet bar against humidity and observe that the
sheet bar does not touch any metal parts – danger of short circuit!
A
= remove tray
�
A
Reference line 3:
door handle flush
to panel edge
Reference line 2:
lower panel edge and lower
edge of door lining are
parallel
You should check the polarity of all woofers after having
connected them to the crossover circuit with a 9 volt battery
(input cable on the side of the amplifier).
46149 - BMW Z3
