Xtant LFQ 45 Owner's Manual
3.25 x 4.25
ACCESSORY PORT
RIGHT ANGLE
HEADER CONNECTOR
INSTALLING THE LFQ 45
STEP 1: Locating the Connector
INSTALLING THE LFQ 45
STEP 2: Adjusting the LFQ 45
INSTALLING THE LFQ 45
STEP 3: Plugging-in the LFQ 45
A. Turn-off amplifier. Remove amplifier cover and
locate the Accessory Port.
B. Remove the two header jumpers and locate the
missing pin (“key”) on the port.
C. Align the blocked receptacle with the missing pin
and press the LFQ 45 onto the accessory port.
D. Turn amp on and audition sound. If further adjustment
is needed, turn amp off and reposition the bass boost
jumper to achieve the desired level of bass response.
A. Remove the LFQ 45 from the packaging
and inspect the circuit board.
B. Locate the right angle header connector sol-
dered on the front of the circuit board. See
illustrations 3
C. Tip the LFQ 45 on end and view the right
angle header connector. Notice that one of the
openings on the header connector is blocked
by white filler material. The LFQ 45’s mount-
ing system utilizes this blocked receptacle as
the “key” to insure proper positioning when
installing it onto the amplifier’s mounting
port. See illustration 1.
A. The LFQ 45 provides +4, +8 or +12 dB of Bass
Boost at 45 Hz with a “Q” of 3. This frequency
and “Q” combination was chosen to enhance
overall bass response. To adjust the level of Bass
Boost, move the LFQ 45’s jumper to one of the
three available positions. See illustration 2
B. Make your initial Bass Boost adjustment to the
LFQ 45 prior to installing the module in the
amplifier. We suggest starting with the jumper in
the +8 dB position.
C. After listening to your initial setting, if you
wish to adjust the Bass Boost, turn the amplifier
off prior to moving the Bass Boost Jumper. Simply
move the jumper to +4 dB to decrease or +12 dB
to increase the bass output.
xtant
LFQ 45
RIGHT ANGLE
HEADER CONNECTOR
LOCATING
“
KEY
”
CIRCUIT BOARD
illustration 3
illustration 1
BASS BOOST JUMPER
BASS BOOST JUMPER
+4 dB +8 dB +12 dB
illustration 2
+4 dB +8 dB +12 dB