XFIRE AUDIO XFR1200.4 Owner's Manual - Setting The Controls
Setting the controls
Turn the gain level on your amplifier to minimum and set the x-over switch to the FULL position, turn down the bass
boost. Turn the volume on the source unit down before you turn on the power (this will save your speakers if something
isn’t right!). Turn the system on, check if the power LED on your amplifier is ON and the protection LED remains OFF.
Turn the volume of your source unit 3/4 of the way up (this is your maximum volume without distortion).
Slowly turn up the gain on your amplifier to the point when your speakers just start to distort, now turn the gain a little
down untill the distortion is gone. Turn down the volume on the source unit.
Now it is time to set the x-over switch to the right setting : LPF for subwoofer(s) and HPF for speakers and select the
desired x-over frequency.
Listen to the system and fine tune the gain on the amplifier if needed.
Almost all problems can be eliminated by re-checking connections and settings in your system. Follow the steps below
as a guide. If you cannot solve the problem, consult your XFIRE AUDIO installation professional.
NO SOUND - POWER LED IS OFF
1. Check the inline fuse(s) in the positive power cable, replace these if needed.
2. Check the negative power cable connections.
3. Check if the system operating voltage is between 8.5V - 16V DC, our amplifiers have a high and low voltage pro-
tection.
4. Verify source unit operation.
5. Check connection of REMOTE TURN ON wire. If steps 1-4 are OK your amplifier should switch ON and the power
LED should light up.
NO SOUND - POWER LED IS ON
1. Check the RCA cables are properly connected on the source unit and amplifier.
2. Check the RCA cables for damages and replace the cables if needed.
3. Check the speaker cables for damages and if they are connected properly, replace cables if needed.
4. Check if the speakers are damaged and replace if needed.
NO SOUND - PROTECTION LED IS ON
1. The speakers connected have an impedance under the specified load or the speakers/speaker cables have a short
circuit.
2. The amplifier runs really hot, mount the amplifier as recommended in the INSTALLATION section, check the imped-
ance of the speakers and measure if the operating voltage is within 8.5V - 16V DC.
3. Check for DC offset on the RCA inputs, if so check the source unit and RCA cables for damages.