Before You begin installation
Congratulations and thank you for purchasing your Crescendo amplifiers, the logical choice in mobile audio
amplification. Your amplifier has been designed and engineered with the highest quality components and
top of the line workmanship to help you reach the superior sound you are after.
To achieve optimal performance of your system, please take a few moments to read over this operating
manual if needed before starting your installation.
Amplifier Location
Allow air circulation around the amplifier.
The amplifier’s compact design allows greater flexibility in mounting. It can be mounted under the seat
and in the trunk.
When selecting a location, remember that amplifiers generate heat.
Select a location where air can circulate around the amplifier.
Do not cover the amplifier with carpets or enclose it behind interior trim panels.
Every installation will be a bit different based upon vehicle design, check all locations and placements
carefully before making any cuts or connections.
Disconnect Battery
Before you begin, always disconnect the battery negative terminal.
If wiring connections are made incorrectly the unit will not operate properly and could be damaged.
Follow the installation instructions carefully or have the amplifier installed by an authorized dealer.
Things to remember when installing your
SYMPHONY
amplifiers.
The design philosophy of
SYMPHONY
amplifiers and mode of regulation requires that proper installation
and load impedance instructions be adhered to at all times.
Minimum impedance recommended for S1-v2 and S1 Plus are 1ohm.
Minimum impedance for S2, S4 & S6 are 2ohm stereo or 4 ohm bridged.
All
SYMPHONY
amplifiers are not equipped with fuses. Please use external fuses for all
SYMPHONY
amplifiers.
External fuse ratings are 150A for S1-v2, 300A for S1 Plus 50A for S2, 60A for S4 and 130A for S6.
These fuse ratings should be sufficient under normal working conditions. However, if the amplifiers are
overloaded ( see minimum impedance above ) fuses may blow.
Therefore, please try to avoid operating the amplifiers under these conditions.
1. Mount the amplifiers where air flow is the best.
2. Mount the amplifiers to a solid surface away from vibration, as these amplifiers are heavy and
the vibration can damage the amplifiers.
3. Run 4 gauge wire from the battery, using fuses within 18” of the positive battery terminal.
The fuse is to protect the car and your car audio system from the fire that could be caused by a short circuit.
4. Run 4 gauge ground wire as short as possible, to the closest chassis ground point.
Be sure to remove the paint around the chassis ground point to provide a more solid electrical connection.
5. Run a 16 AWG ( or larger ) wire to the remote turn-on lead of the headunit.
6. Connect the speakers as per wiring diagrams in the manual.
14 AWG or larger speaker wire is recommended.
7. Mount remote level control in the car where it can be easily reached from the driver’s seat, if desired.
Important:
