Ultimate-sound Korus MKII Sub - Manual (Page 4)

Step 3
Powering Up
A) On/Off Switch:
Your subwoofer has an On/Off switch. Once connected to your receiver and plugged into the wall outlet, the
Ultimate subwoofer will need to be turned on and can be left in the “auto” position so that once it senses a sig-
nal coming from your receiver, it will automatically turn on and will turn off into Standby mode after it does not
sense a signal for 5 minutes.
B) Setting the Volume and Crossover Frequency.
Crossover:
The Frequency control determines the frequency below which the subwoofer will play. This frequency is
manually controlled and is continuously variable between 50-150Hz. You can experiment with which position
works best with your main speakers by turning this control until the sound of the low frequency coming from
the subwoofer is nicely blended with the sound of your main speakers.
Frequency setting tip:
When using small speakers (speakers with a 6" or less main woofer) set this control toward the "150" posi-
tion. When using larger speakers (speakers with an 8" or more main woofer) set the control closer to the
"50" position.
Gain:
When setting the Gain control at the subwoofer, begin with your main speakers playing at a normal listening
level and the Gain control at the subwoofer completely in the off position (counterclockwise position). Then,
begin to turn up the Gain at the subwoofer slowly (clockwise) until the desired bass response is achieved.
Bass output will then be regulated by your A/V receiver’s volume control.
Gain setting tip:
Have one person sit at the regular listening position, and a second person turn up the Gain at the subwoofer
until the desired bass output is achieved at the listening position. Remember most natural sounding bass results
when bass reproduction is balanced with the main speakers.
Phase:
The phase control will fine tune the bass performance. Have one person sit in the listening position and a sec-
ond person toggle the switch between Normal and Reverse to achieve the desired bass output.