Profile 600MSX, 400MSX User Manual

MOSFET POWER AMPLIFIERS

Installation Instructions / Owner's Manual

400MSX
600MSX

INTRODUCTION

Congratulations on your purchase of a California state-of-the-art power amplifier. Your
selection of a California car audio product indicates a true appreciation of fine musical
reproduction. Whether adding to an existing system or including your California amplifier in a
new system, you are certain to notice immediate performance benefits.

KEEP YOUR SALES RECEIPT

Take this time to attach your sales receipt to the manual and put in a safe place. In case of any
unforeseen reason this product may need warranty service, your receipt will be necessary to
establish purchase date.

RECOMMENDATION

A power amplifier's performance is only as good as its installation. Proper installation will
maximize the system's overall performance. It is recommended that you have our product
installed by an authorized Profile retailer. However, if you decide to install it yourself, please
carefully read through this manual and take your time to do a quality installation.

IMPORTANT! Before making any connections, disconnect the car's battery
until the installation is completed to avoid possible damage to the electrical
system.

WARNING!

WARNING!

Exposure to high power sound system can cause hearing loss or damage.

Exposure to high power sound system can cause hearing loss or damage.

Listening to your system at loud levels while driving, will impair your ability to

Listening to your system at loud levels while driving, will impair your ability to

hear traffic sounds and emergency vehicles. Use common sense when listening

hear traffic sounds and emergency vehicles. Use common sense when listening

to your system.

to your system.

Serial #

Model #

1

SAFETY PRECAUTIONS

Fuse amplifier's power wire at the battery.

Be sure to fuse the power wire within 12" of the car's battery. This will protect the car's
battery in case of a short circuit between the power amplifier and battery. THIS IS A MUST,
the amplifier's built-in fuse will only protect the power amplifier not the car's battery!

Use high grade wire connectors.

To ensure maximum power transfer and secure safe connections, it is recommended to use
high grade connectors where needed.

Do not run any wires underneath vehicle.

Exposed wires have a chance of being cut or damaged. It is best to run all wires through the
vehicle under the carpet and/or side panels. This lends to a cleaner installation and less risk of
damage.

Use caution when mounting amplifier.

Remember there are many electrical wires, gas lines, vacuum lines, brake lines as well as a gas
tank in the automobile. Make sure you know where they are when mounting the amplifier to
avoid puncturing lines, shorting wires or drilling holes in the gas tank.

Run signal wires away from electrical wires.

To avoid possibility of induced noise from the car's electrical system (i.e. popping noises or
engine noise), run wires away from the car's electrical wiring.

Make all ground wires as short as possible and at the same point.

In order to reduce the chance of ground loops (i.e. engine noise), make the grounding wire as
short as possible to reduce the wire's resistance. Also, when using multiple components, make
sure all units are grounded at the same point.

Avoid sharp edges when running the wires.

To avoid the possibility of power, signal or speaker shorts, be careful not to allow the
amplifiers wires to come in contact with sharp edges. Use a grommet to protect the wire when
running through the fire wall .

2

FEATURES AND BENEFITS

DC Offset Protection

This circuit protects the output of the amplifier against DC voltage. If for some reason DC
voltage is detected at the output stage, the amplifier will shut down protecting the speakers
from direct current.

Short Circuit Protection

The circuit protects the amplifier from damage due to a short found in the speakers or wiring.
If one of the speakers or its wiring comes in contact with ground, the amplifier will shut down.
To resume normal operation, correct the problem and turn the head unit off, then back on.
The amplifier will reset and play again.

Thermal Protection

To protect the amplifier circuitry against damage caused by prolonged exposure to high
temperatures, a thermal protection circuit is activated if the amplifier reaches excessively
high operating temperature. Once the thermal circuit is activated, the amplifier will shut
down to cool off. The Amplifier will automatically turn back on once it cools down to a safe
operating temperature.

Protection Indicator

This red diagnostic L.E.D. indicates that the amplifier has gone into protection. Once on, the
amplifier will have no output. To resume normal operation, turn head unit off and back on again.
If the amplifier immediately goes back into protection, check for high temperature, short
circuits or low impedance.

Built-in Crossover

The amplifier is equipped with a built-in variable low pass crossovers. The crossover features
a variable frequency selection (40Hz ~ 130Hz) for precise high or low pass filtering.

Bass Boost

For added low frequency performance the amplifier is equipped with a variable 12 dB bass
boost.

3

Power Fusing

This protects the amplifier against short circuits and excessive current.

Remote Turn-on

Automatically turns amplifier on when connected to the head unit's remote output. The
amplifier will turn on and off with the head unit to save current consumption. This control also
operates the reset circuit for the amplifier's protection. It must be connected with the head
unit in order to reset protection circuits.

Gold Plated connections

For positive contact, maximum power and signal transfer with minimal resistance.

Adjustable Input Sensitivity

Allows you to fine-tune the level matching between your source and the power amplifier. The
controls have been set at the factory to accept average output of most radios, however, fine
tuning may be necessary to optimize signal to the amplifiers input stage.

High Level Input

Allowing for integration with "Factory Sound Systems".

Stable To 2 Ohm

Stability to 2 ohms allowing multiple speaker connections .

4