Axiom EP500 v4, Manual

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Step 5
AC INPUT : Your subwoofer is supplied set to either 115 volts or 230 volts depending on the country we shipped it to. If you
move countries, this voltage can be changed by having a technician change the fuse type (T6.3AL for 115V and T3.15AL for 230V)
and move a cable inside your subwoofer amplifi er to the plug marked with the desired voltage. Residents of some other countries
will need to purchase an adaptor or new proper power cord that fi ts your specifi c socket.
Once you have made appropriate connections from the A/V receiver or preamp/processor to the subwoofer, fi nd a nearby AC wall
outlet and connect the main power cord to the three-wire socket at the bott om of the control panel. Move the power switch to the
ON sett ing. Th
e LED POWER indicator should glow Green. Leave the switch at the ON sett ing unless you go away for an extended
period. Moving it to OFF will shut down all power to the subwoofer.
Step 6
TRIGGER: Use of the trigger input is an optional hook-up. If your A/V receiver or A/V preamp-processor has a 12-volt trigger
output, you can run a 3.5mm connector cable to the subwoofer trigger input and your subwoofer will power on and off with your
A/V receiver or A/V preamp-processor. When the trigger signal is in the “off ” mode the LED will change from Green to Red and
the amplifi er will be switched to a low power consumption standby mode. If you have multiple subwoofers you can run a 3.5mm
connector cable from the trigger out on the fi rst subwoofer to the trigger input of the second subwoofer.
Step 7
PHASE and POLARITY: Th
is synchronizes the in/out movement of the subwoofer cone driver with the other speakers in your
system. Once you have chosen the best location for your subwoofer, try rotating the phase dial in 1/8 turn increments starting at
0 until you reach 180 and then switch to Polarity to 180 and repeat the process to see if one of these sett ings produces deeper and
smoother bass output in your room. Once complete, move the dial back to the position that resulted in the smoothest and deepest
bass at several listening locations in the room. If you hear no diff erence, leave the dial and the polarity switch at the 0 position.
Quite oft en the phase dial and polarity switch makes litt le diff erence, but it’s dependent on your particular room’s dimensions and
subwoofer location.
Step 8
SUBSONIC: Sett ing this switch to “ON” inserts a 20-Hz cut-off fi lter in the subwoofer’s bass response to prevent the subwoofer
from reproducing frequencies below 20 Hz, which may include rumble from studio air conditioning, subways or other undesirable
artifacts. If you play vinyl discs from a turntable, set this switch to “ON” to prevent the subwoofer from reproducing turntable
rumble and low-frequency record-warp anomalies.
Leave this switch set to “OFF” for all other digital recordings and DVD sound tracks that contain ultra-deep bass frequencies you
want the subwoofer to accurately reproduce.
Step 9
GROUND LOOP: If your subwoofer is producing a 50 or 60 Hz hum it is likely due to a ground loop. Th is is caused by a
diff erence in potential between the grounds of your receiver or pre-amp and the subwoofer through your house wiring. If this
occurs remove the silver Chassis Ground Screw. If this does not remove the hum, call 1-888-352-9466 for technical support.
POWER INDICATOR: Th e LED Power indicator glows Green when the subwoofer is powered on and Red when a trigger signal
is connected and in the “off ” mode