Mounting the Amplifier, Wiring the Power Connections

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.

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.

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

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.

DA6502, DA4002, DA1002, DA3504 specifications

JBL has built a reputation for producing high-quality audio equipment, and their series of amplifiers, including the JBL DA3504, DA1002, DA4002, and DA6502, exemplifies this commitment to excellence. Each model caters to different needs and preferences, making them versatile options for audio enthusiasts.

Starting with the JBL DA3504, this 4-channel amplifier is designed to deliver powerful performance in a compact package. It boasts an output power of 50 watts RMS per channel at 4 ohms, ensuring that it can drive a variety of speakers efficiently. The DA3504 features a high-pass and low-pass filter, allowing users to customize sound output to match their audio preferences. Its sleek design and built-in LED indicators enhance both functionality and aesthetic appeal, making it a great addition to any audio system.

Moving on to the JBL DA1002, this amplifier is a 2-channel model that focuses on delivering exceptional sound quality. It offers 50 watts RMS per channel, ideal for smaller audio setups. The DA1002 is notable for its simple installation process and lightweight design, making it accessible for users who may not be audio experts. This amplifier also includes a variable low-pass filter, allowing users to enhance bass response and create a more immersive listening experience.

The JBL DA4002 is a powerful 2-channel amplifier that provides an output of 100 watts RMS per channel. This model is designed for those looking for higher output and is perfect for larger audio systems or when more power is needed to drive speakers effectively. With its durable construction and advanced circuitry, the DA4002 ensures reliable performance and minimal distortion, preserving audio quality even at higher volume levels.

Lastly, the JBL DA6502 stands out as a 2-channel powerhouse with an impressive 150 watts RMS per channel output. Designed for audiophiles who demand robust sound performance, the DA6502 integrates advanced features such as variable bass boost and a crossover network. Its exceptional build quality and efficient cooling system make it suitable for extended use without overheating, ensuring that every listening session is enjoyable.

Collectively, these JBL amplifiers – DA3504, DA1002, DA4002, and DA6502 – offer a range of features and output capacities suitable for various audio setups. Whether for casual listening or serious audio applications, JBL amplifiers continue to deliver reliable performance and impressive sound quality, making them a top choice for many audio enthusiasts.