Bedienungsanleitung JBL da 3504 (Seite 4 von 8) (Englisch)

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Wiring the Speaker Output

Connections

1. Connect the speakers, observing

proper polarity, to the speaker output

barrier strip on the amplifier using at

least 16G high-quality speaker wire.

(Note: The total impedance of the

speakers connected to the outputs

when the amp is driven in stereo must

be at least 2 ohms.)

2. If you are bridging the amplifier, con-

nect the speaker wires to the terminals

marked “bridge”, observing proper

polarity. (Note: The total impedance of

the speaker system to be connected to

the amplifier must be at least 4 ohms

in bridge mode.)

3. If you are running the amp in Tri-Mode

(stereo and mono simultaneously to

one or two pairs of satellite speakers

and a subwoofer), refer to the chart

below to determine the capacitor and

inductor values you’ll need to route

bass signals to the woofer, and

midrange and high frequencies to the

satellite speakers. These passive

crossover components will also ensure

that the impedance of the speaker

system doesn’t drop below 2 ohms.

Wiring the Input Connections

1. If you are using conventional RCA

input connections and a source unit

with output voltage less than 4V, sim-

ply plug the RCA plugs into the RCA

jacks on the amplifier.

2. If you are connecting the amplifier to a

factory-installed source unit, or to a

source unit that only has speaker-level

outputs, connect the speaker outputs of

the source to the speaker input plug on

the amp using the connector provided.

Mounting the Amplifier

The JBL Decade Series amplifiers can be

mounted in virtually any location inside

the vehicle. However, make sure to keep

the amplifier away from heater vents or

ducts.

1. At the chosen site, use the amplifier

as a mounting template and mark the

locations of the four mounting holes.

2. Drill a small pilot hole at each marked

location.

3. Mount the amplifier and securely

tighten the mounting screws.

Wiring the Power Connections

Refer to diagrams on page 3 for connec-

tor locations.

1. For power, remote and speaker wires,

strip 1⁄4" off one end of each jacket to

reveal bare wire for insertion into the

barrier strip connectors.

2. Locate the 3-connection barrier strip

labeled +Batt, Rem and Gnd. Connect a

black wire (at least 12G for DA4002,

10G for DA6502, DA1002 and DA3504)

to the Gnd terminal and connect the

other end to the nearest bare-metal

chassis component. Then, connect a

red wire (at least 12G for DA4002, 10G

for DA6502, DA1002 and DA3504) from

the vehicle’s +12-volt battery terminal

to the +Batt terminal on the barrier

strip. Finally connect a blue wire (16G)

to the Rem terminal on the barrier strip

and connect the other end to the Rem

output of the source unit.

FREQUENCY INDUCTOR CAPACITOR

Crossover 6dB/oct. LP 6dB/oct. HP

(4 ohm) (4 ohm)

75Hz 8.0mH 530µF

100Hz 6.4mH 400µF

125Hz 5.0mH 318µF

150Hz 4.2mH 265µF

175Hz 3.6mH 227µF

200Hz 3.2mH 198µF

DA OM 7/14/98 11:38 AM Page 4

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