Supplied CM12
L
Filter Module
Product Description:
The CM12
L
is a 12 dB per octave low pass filter network. This supplied mod-
ule is designed to be plugged into any accessory port tower on the 301a amplifier. Frequency adjust-
ment is via a 12 pin, plug-in resistor SIP (Single In-line Package). A 90 Hz SIP is factory installed and
an additional 13 crossover frequency SIPs are available from your Authorized Xtant Dealer.
Adding Accessory Modules:
The 301a is equipped with three accessory docking ports. Two ports
are dedicated to the amplifier and are labeled Amp Vert/Horiz Acc. Port and Amp Vert. Acc. Port.
The third is dedicated to the RCA output signal and is labeled Line Out Vert. Acc. Port. Xtant offers
two types of accessory modules which are designed for either “Horizontal” or “Vertical” mount-
ing. The docking port labeled Amp Vert/Horiz Acc. Port will accept any of the modules, while the
ports labeled Vert will only accept modules designed for vertical mounting. The following is a list
of Xtant Accessory Modules including their “Horizontal” or “Vertical” mounting design:
XTANT ACCESSORY MODULES
Model
Function
Mounting
Model
Function
Mounting
CM 24x
Xover
Horizontal
CM12
H
Xover
Vertical
PQM 1
EQ
Horizontal
CM12
L
Xover
Vertical
LFQ 45
Bass EQ
Vertical
NGM 1
Noise Gate
Horizontal
RGM 1
Remote Gain
Vertical
Installation:
The CM12
L
installs on any of the three acces-
sory port towers located on the 301a’s printed circuit
board. Simply remove the port jumpers and plug the
module in vertically. Be sure to observe the orientation of
the “keyed” right angled header connector before
attempting to insert the CM12
L
onto a port tower.
Applications:
The CM 12L filter module may be used alone or in combination with other Xtant
modules. Here are a few examples of how the CM 12
L
Module may be applied:
Low Pass Amp:
CM12
L
in Amp Vert. Acc. Port.
Low Pass RCA Out:
CM12
L
in Line Out Vert. Acc. Port
Low Pass + EQ Amp:
CM12
L
in Amp Vert. Acc. Port plus
PQM 1 EQ in Amp Vert/Horiz Acc. Port
Band Pass Amp:
CM12
L
in Amp Vert/Horiz Acc. Port. plus
CM12
H
(High Pass) for amp in Amp Vert. Acc. Port
24 dB High Pass for Amp:
2 – CM12
L
set at same frequency
in Amp Vert. Acc. Port and Amp Vert/Horiz Acc. Port
Accessory Port Tower
LOCATING
“
KEY
”
RIGHT ANGLE
HEADER CONNECTOR
CIRCUIT BOARD
X t a n t T e c h n o l o g i e s • 7 6 7 6 S o u t h 4 6 t h S t r e e t • P h o e n i x , A r i z o n a • 8 5 0 4 0 • 6 0 2 4 3 1 8 6 8 6
