Blaupunkt BMX 720 Instructions De Montage page 3

Product description
6-/5-/4-/3-channel amplifier with switch-mode power pack and integrated
3-way crossover.
Installation instructions
The BMX 720 amplifier suits to be connected to a car radio either
equipped with a PREAMP OUTPUT in accordance with DIN 45326 or
Cinch connectors.
For the connection to a unit fitted with speaker outputs use the adaptor
cable 7 607 873 000 (speaker connector
AUX OUT socket it is possible to link several amplifiers.
Safety information
Mounting and connection instructions
Before connecting, disconnect the vehicle battery ground wire.
The BMX 720 is installed in an appropriate mounting location, for exam
ple to the splash wall or in the boot. When choosing a location, take care
for sufficient heat dissipation. Before drilling holes in the vehi cle
bodywork, check what is on the other side to avoid damaging the wiring
looms or other parts of the vehicle, fig. 3.
In order to avoid interference from adjacent wiring, all cables have to be
routed at a sufficient distance to the wiring looms.
Use only loudspeakers with a 4 Ω impedance. Take into account the
maximum power handling capacity (max. power).
To connect the speakers, use cable diameters of up to 16 mm
connect speaker leads to the vehicle ground. Use only the terminals
marked correspondingly.
To protect the vehicle battery, the amplifier should only be operated
at moderate power values when then engine is switched off.
Positive/negative connection
Route both of the attached positive leads to the battery and connect to
the positive battery pole via the fuse holder delivered with the system.
Use the attached grommets where cables pass through holes in metal to
avoid chafing. Connect the two positive wires to the B+ terminals of the
amplifier, see fig. 1.
Securely screw the two negative leads to an interference-free ground
spot of the vehicle (chassis screw or panel; do not connect to the nega
tive battery pole). In the contact area, scrape off the paint and treat
ground spot with graphite grease. Connect the two ground leads to the
GND terminals of the amplifier, see fig. 1.
Connection to the car radio
Car radios equipped with a DIN output are connected to the 8-pole INPUT
socket via the connection cable 7 607 863 001 (5 m) or 7 607 652 061
(1.3 m) and extension 7 607 244 000 (4 m), see fig. 4.
Car radios equipped with a Cinch output are connected to the Cinch jack
ets LF, RF, LR, RR via the connection cable 7 607 886 093 (5 m). In this
case, the switching line REM +14 V has to be connected as well, see
fig. 4.
GB
DIN socket). Via the 8-pole
Loudspeaker connection
The loudspeakers have to be connected in accordance with the table
"Ap plications and configurations" listed in the following.
Attention: Never connect speaker leads to the vehicle ground!
AUX OUT
Use the connection cable 7 607 652 061 to hook up further amplifiers to
the AUX OUT socket.
Control and switch settings, fig. 4
GAIN ADJ
Adjust the control to 2 V when connecting a Blaupunkt car radio. The gain
adjust control range reaches from 0.3 V to 2 V. When connecting the set
of another make, match the input sensitivity with the correspond ing
manufacturer specifications.
LEVEL 1+2, 3+4, 5+6
Use these controls to adjust the volume of channel pairs 1+2, 3+4, and
5+6 by ± 10 dB.
BASS BOOST
When adjusted to ON, the volume is boosted by 10 dB at 45 Hz.
TWT, LP.MID.HP, MID.HP, SUB-LP
These controls are only active during 3- or 2-way operation. The control
SUB.LP is also active during full + sub operation. For the settings of the
2 . Never
INPUT SELECT and MODE SELECT switches, please refer to the table
"Applications and configurations".
Technical data
Max. power:
RMS power:
Distortion factor:t
Frequency range:
3-way frequency crossover:
S/N distance:
Channel separation:
Circuit breaker for short circuit and overtemperature protection
Inputs:
Outputs:
Dimensions (w/h/d):
We reserve the right to make technical modifications!
6 x 120 W or 3 x 240 W into 4 Ω
6 x 65 W or 3 x 120 W at 0.1 % distortion
typ. 0.01 % at 10 W, 1 kHz, 4 Ω
Subwoofer: low-pass: 40 Hz - 250 Hz
Mid-range: high-pass: 50 Hz - 350 Hz
Tweeter: high-pass: 2.4 - 5 kHz
DIN (8-pole) and 4 Cinch RCA, gold-plated
AUX OUT (8-pole DIN), 6 speakers 4 Ω, gold-plated
(DIN 45500)
10 Hz - 90 kHz (-3 dB)
low-pass: 2.4 - 5 kHz
>102 dB (A)
>60 dB / 1 kHz
450 x 45 x 270 mm