8. Crossover circuit - Speaker connection
8.1. precable crossovers - see fig. page 11.
8.2. install crossover in the back part of the door-lining (see fig. – possibly without
housing, covered with foamed material) – use a hot melt adhesive or 2 sheet
metal screws from the hardware bag
8.3. Insert subwoofer and midrange and connect all loudspeakers
to the crossover circuit (parallel-circuit):
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!
8. Crossover circuit - Speaker connection
8.1. precable crossovers - see fig. page 11.
8.2. install crossover in the back part of the door-lining (see fig. – possibly without
housing, covered with foamed material) – use a hot melt adhesive or 2 sheet
metal screws from the hardware bag
8.3. Insert subwoofer and midrange and connect all loudspeakers
to the crossover circuit (parallel-circuit):
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!
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.
3.3. Place the panel without loudspeakers and grill on the door lining and align it:
fig. :
panel alignment behind
the edge of the door lining
and the back edge of the panel
mount of the crossover :
move behind the door-lining
and fix it
45146 - BMW 3 E 36 Sedan / Touring
- 10 -
© JEHNERT SOUND DESIGN
45146 - BMW 3 E 36 Sedan / Touring
- 5-
© JEHNERT SOUND DESIGN
3 . Panel alignment
Reference points for fitting:
Only precise alignment of the panel with the door
lining warrants optimal fit.
Reference line 1:
align “nose” on the panel directly into the notch of the
door lining. This results to a distance between upper edge of
the panel and lower edge of the original tweeter grill of 80 mm.
Reference line 2+3:
realign the back edge of the panel to the edge of the door lining
with a distance of 13,5cm (see ref. point 2 above). Distance
of the front side edge 4,6cm (see ref.point 3 above)
Reference line 1:
the lower edge of the panel is parallel to the edge of the door lining
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Hochtöner
Tieftöner
Sound
Sound
D E S I G N
JEHNERT
Mitteltöner
Eingang
3-Wege fahrzeugspezifische Frequenzweiche
Golf IV
✚
✚
ref. point 1:
80 mm distance
between upper edge
of the panel and lower
edge of the original
tweeter’s grill
Ref. point 2:
13,5 cm distance
between end of
panel and edge of
the door-lining
Ref. point 3:
4,6 cm distance
between the front
edge of the panel
and the side edge
of the door-lining.
Ref. point 2:
align “nose” on the
panel directly into
the notch of the
door lining
Ref. point 4
:
