~5. WIRING
The only tool needed to make wire terminations at the amplifier will be a flat
| up to 5’ | up to 10’ | greater than IO’ |
Soundstream Power40 | Soundstream | Soundstream | |
or | Power80 | Power40 or Power80 | Power40 |
(4 | or 8 ga.) | (4 or 8 ga.) | (4 gas) |
Wiring Tips
0Use grommets when running cables through any metal or sharp plastic to prevent accidental shorting or shearing.
0 Be certain that the cables don’t interfere with normal operation of the vehicle.
0Choose the location of the audio cables carefully to prevent interference with the vehicle’s high current circuits and vehicle management systems (engine computers, relays, etc.).
1.Carefully run the audio and remote
2.Connect the speakers as shown in “Selecting Operating Modes”in section
2.Use at least a 16 gauge speaker wire, preferably a flexible
3.Carefully run the positive power cable from the battery to a fuse or a circuit breaker and then to the amplifier. Connect the lead to the battery via either a fuse or circuit breaker within 18 inches of the battery. The fuse or circuit breaker value should be 40 to 50 amps. Leave the fuse out or the circuit breaker off until the installation is othencvise finished. If the circuit breaker cannot be shut off manually, do not make the final power connection until the installation is finished.
4.Run a ground cable for the amplifier and securely connect it to a solid chassis ground on the vehicle. The ground cable should be the same gauge as the power cable.
5.Double check each and every connection.
6.Reconnect the fuse or circuit breaker. Power up the system and look at the green and red LEDs, depending on the configuration, one should be lit. The may be a 2 - 3 second delay from the time that the source unit is turned on to the time that the LED on the amp turns on, which is normal. Once the
amplifier power LED is on and the source unit is playing, you should have sound coming from the speakers.
6. LEVEL SETTING
The input levels are adjusted by means of the input level controls located between the RCA inputs and the speaker outputs. When the amplifier is operated in the mono/bridged mode, only the right channel input is active.
1.Turn the amp’s input level controls to minimum position (fully counter- clockwise).
2.Set source unit volume to approximately 314 of full volume.
3.While playing dynamic source material, slowly increase the amplifier’s input level(s) until a near maximum undistorted level is heard in the
system.
NOTE: The best Signal to Noise ratio is achieved when the amplifier
Iinput gains are set between 500 mV and 2.5 V.
7.CROSSOVER ADJUSTMENTS
The REFERENCE405 incorporates a continuously variable staggered asymmetrical electronic crossover. The high and low pass portions of the crossover can be adjusted independent of one another. Follow the below procedure to adjust the crossover:
1.Make certain the crossover is activated (see Section ZB, Select Operating Modes).
2.Set crossover frequency adjustments to the 12 o’clock position.
3.While listening to music, adjust the high pass frequency dial for the high pass. Select a frequency high enough to prevent damage to the speakers, yet low enough that you are able to retain midbass in the front speakers.
4.Adjust the subwoofer frequency control in the same way as the high pass. This time, listen to bass. You should find a setting that will give you a solid sound with minimum “boom” from resonating frequencies.
Note; Many times, the best results are achieved with the high pass frequencies set higher than the low pass. This “staggered” setting compensates for much of the midbass resonance inherent in the automobile environment.
You may find it necessary to readjust the crossover after listening to the system. The correct settings are a combination of the capabilities of the equipment and your listening preferences.
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