AudioBahn A18001DJ ユーザーズマニュアル

Planning Your System

Before beginning the installation, consider the following:

If you plan to expand your system by adding other components sometime in the

future, ensure that adequate space is left, and cooling requirements are met.

If your radio/source is equipped with Pre-Amp outputs, it is possible to utilize

them to drive an Amplifier and connecting (Amplifier) to the 2 rear speakers.

Then, use the built-in power of your radio to drive the 2 front speakers.

NOTE:

DISTORTION LEVEL IS CONSIDERABLY LOWER FROM PRE-AMP (LOW LEVEL) OUTPUTS, THAN

SPEAKER (HIGH LEVEL) OUTPUTS.

Are your components matched? The RMS power rating of your speakers must

be equal or greater than the Amplifier’s. They also must be 1-8 Ohms

impedance (this information is normally printed on the speaker magnet).

Consider both the length of your leads, and routing when determining the mounting

location. Pre-Amp input Jacks require a length of high quality shielded male to male

RCA patch cord.

Mounting Your System

The mounting position of your Amplifier will have great effect on its ability to dissipate the heat generated

during normal operation. It has an ample heat sink for heat dissipation, and also is designed with a thermal

shut-down (for heat protection) circuit, having enough air directed over the cooling fins will improve heat dis-

sipation dramatically. DO NOT enclose the amplifier in a small box or cover it so that air can not flow around

the fins. Temperatures in car trunks have been measured as high as (155˚F) in the summer time. Since the

thermal shut-down point for the Amplifier is (158˚F) it is easy to see that it must be mounted for maximum

cooling capability. To achieve the maximum advantage of convection air flow in an enclosed trunk, mount the

amplifier in a horizontal position. Cooling requirements are considerably relaxed when mounting inside the

passenger compartment since the driver will not allow temperatures to reach a critical point. Floor mounting

under the seat is usually satisfactory as long as there is at least 1 inch (2.54cm) above the Amplifier’s fins for

ventilation.

Select a sutable location that is convenient for mounting, accessible for wiring and has

ample room for air circulation and cooling.

Use the amplifier as a template to mark the mounting holes. Remove the amplifier and

drill holes. Use extreme caution. Inspect underneath the surfaces before drilling!

Secure the Amplifier using the screws provided.

CAUTION:

Before connecting any wires to the amplifier, disconnect the ground lead from

the battery. Leave the ground lead disconnected until you are done wiring the

amplifier.

PLANNING/MOUNTING YOUR SYSTEM