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Supplied CM12

H

Filter Module

Product Description:

The CM12

H

is a 12 dB per octave high pass filter network. This supplied mod-

ule is designed to be plugged into any accessory port tower on the 302a 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 302a 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

H

installs on any of the three acces-

sory port towers located on the 302a’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

H

onto a port tower.

Applications: 

The CM 12

H

filter module may be used alone or in combination with other Xtant

modules. Here are a few examples of how the CM 12

H

Module may be applied:

High Pass Amp:

CM12

H

in Amp Vert. Acc. Port.

High Pass RCA Out: 

CM12

H

in Line Out Vert. Acc. Port

High Pass + EQ Amp:

CM12

H

in Amp Vert. Acc. Port plus

PQM 1 EQ  in Amp Vert/Horiz Acc. Port
Band Pass Amp:

CM12

H

in Amp Vert/Horiz Acc. Port. plus

CM12

L

(Low Pass) for amp in Amp Vert. Acc. Port

24 dB High Pass  for Amp:

2 – CM12

H

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

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