OPERATION MANUAL
C12 • C22 • L20
Plug-In Controller Modules
L20 Limiter Module
C12 Controller Module
C22 Controller Module
C12 • C22 • L20 OPERATION MANUAL
Table of Contents 2
Introduction 2
Installation 3
C12 Loudspeaker Controller Module 3
C22 Loudspeaker Controller Module 4
L20 Limiter Module 6
Looping Outputs 6
HPF Selectors 6
Input Connectors 7
Limit Set Switches 7
Output Mode Selector 7
Ground Lift Switch 7
Table of Contents
Input Connections 4
Output Connections 4
Output Connections 5
Input Connections 5
Ground Lift Switch 5
Selector Switches 5
C22 Setup Switches 6
Block Diagrams
C12 Controller Module 8
C22 Controller Module 8
L20 Limiter Module 8
Introduction
Congratulations on your purchase of a Renkus-Heinz loudspeaker controller module for your P2400 or
P2700 dual-channel power amplifier.
Your Renkus-Heinz amplifier and controller module have been designed to provide years of troublefree, high performance operation. We hope you enjoy them.
Your Renkus-Heinz controller module was completely tested and inspected before leaving our factory
and should have arrived in perfect condition. Please carefully inspect the module and its shipping
carton for any noticeable damage and immediately notify the shipping company if you see any
noticeable damage. Only you (the consignee) may institute a claim with the carrier for any damage
incurred during shipping. If you have a problem, be sure to save the carton and all packing materials
for the carrier's inspection.
Important
Renkus-Heinz controller modules contain no user-serviceable parts and all service should be referred
to qualified service personnel. We recommend that any module be returned to the factory in its original
packing carton if factory service is required.
2
C12 • C22 • L20 OPERATION MANUAL
Installation Procedure
Installation
The installation procedure is the same for all loudspeaker controller modules.
1. Remove the existing module from the rear of the amplifier by taking out the 4 mounting
screws that hold the module in place and gently pulling the module out of the amplifier chassis.
Caution: Before removing the existing module from the amplifier, make sur e the amplifier
is disconnected from the main AC line.
2. Remove (disconnect) the flat wire cable/connector that connects the existing module to the
amplifier.
3. Connect the flat wire cable/connector to the new module you are installing. Then gently insert
the new module into the amplifier and secure it into place with the 4 mounting screws you
originally removed.
Note: The C12 controller module has 2 flat wire cable connectors on the PC board. The
one to use is the one having the most pins. It is designated J12 on the PC board.
Caution: C12 modules are configured for use with a particular loudspeaker and C22
modules are customized for use with particular loudspeakers by the proper setting of
several control switches. Make sure the module is set up to operate with your
loudspeaker(s) before connecting the loudspeak er(s) and turning on the system.
C12 Controller Module
Input
MODEL
C12
PIN 1 = GND
PIN 2 = +
PIN 3 = -
SUB/LF OUT FR/HFINPUT
cc
BRIDGE
2
T 10 A
117 V ~
250 V
The C12 loudspeaker controller module shown above is a single input input, dual output module
used in single channel (mono) systems having either active 2-way loudspeakers (or 3-way
loudspeakers set up for bi-amp operation) or in systems having full-range (passive) loudspeakers
and subs (refer to the block diagrams show below.) It provides crossover circuitry, protection
against overload damage, and frequency response smoothing.
1
OUTPUTS
STEREO 4 OHM MIN./CH.
BRIDGED MONO 8 OHM MIN.
Channel 1 & 2 controller outputs (processed signals) to additional power
amplifiers.
RENKUS-HEINZ
MADE IN USA
Sub/LF amplifier output to associated subwoofers or to the
low frequency section of active 2-way loudspeakers.
FR/HF amplifer output to associated full-range loudspeakers
or to the high frequency section of active 2-way loudspeakers.
IRVINE, CA - U.S.A.
MODEL P-2400
POWER CONSUMPTION : 920 W
SERIAL N
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
T O REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
TO REDUCE THE RISK OF ELECTRICAL SHOCK
DO NOR REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
MANUFACTURED IN EEC
The C12 is customized to match its associated loudspeakers with a PK-xxx kit that provides the
necessary settings for the crossover, protection, and equalization circuitry. There is no need to
adjust the C12 before installing it.
3
C12 • C22 • L20 OPERATION MANUAL
C12 Controller Module (continued)
Input
Connections
Output
Connections
3
RENKUS-HEINZ
MADE IN USA
MODEL
C12
1
PIN 1 = GND
PIN 2 = +
PIN 3 = -
2
SUB/LF OUT FR/HFINPUT
cc
1. Audio Input Connector
Female 3-pin XLR type input connector. The input is electronically balanced. We recommend the
use of pin 2 as "hot" and pin 3 as "neutral". Pin 1 is chassis ground. When the amplifier is
connected to a balanced source, the shield may either be lifted or connected at the source end.
The choice should be made on the basis of minimum hum.
With an unbalanced source, connect the signal to pin 2 and source ground to pin 3 (connecting
the signal to pin 3 is not rcommended as this will cause a 180 phase invervion at the amplifier
outputs). Note: Improper operation results when only pin 2 or only pin 3 and pin 1 (ground) are
used for an unbalanced input.
2 & 3. SUB/LF and FR/HF "Output" Connectors
Male 3-pin XLR type controller output connectors for the SUB/LF and FR/HF channels; used to
drive additional amplifiers.
Note: When the C12's controller outputs are used to drive additional amplifiers, it is imperative
that the amplifier's level controls be set at the same or a higher level than the level of the amplifiers being driven. Otherwise, the protection feature is lost for the other amplifiers.
C22 Controller Module
“Ch. 1” In
“Ch. 2” In
The C22 loudspeaker controller module shown above is a dual input, dual output controller
designed for use in stereo systems having either passive loudspeakers or subwoofers. It provides
protection against overload damage for the loudspeakers or subs, as well as high & low pass
filters and response shaping.
MODEL
CH 2 OUTPUTS
C22
LOOPING / HPF
PROCESSED LOOPING / HPF
cc
2
T 10 A
117 V ~
250 V
CH 2 INPUT
PIN 1 = GND
PIN 2 = +
PIN 3 = -
GROUND
BRIDGE
CH 1 INPUT
1
CH 1 OUTPUTS
PROCESSED
OUTPUTS
STEREO 4 OHM MIN./CH.
BRIDGED MONO 8 OHM MIN.
Channel 1 & 2 controller outputs (processed signals) to
additional power amplifiers.
Channel 1 & 2 “Looping” (unprocessed signals) or HPF
(high pass filter) controller outputs (processed signals)
to additional power amplifiers.
RENKUS-HEINZ
MADE IN USA
MODEL P-2400
POWER CONSUMPTION : 920 W
SERIAL N
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
T O REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
TO REDUCE THE RISK OF ELECTRICAL SHOCK
DO NOR REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
MANUFACTURED IN EEC
Channel 1 output to loudspeaker(s) or subwoofers.
Channel 2 output to loudspeaker(s) or subwoofers.
IRVINE, CA - U.S.A.
C22 controller modules are customized to match an associated family of loudspeakers (for
example, the TRC series) and must be programed to match a specific loudspeaker by the proper
setting of several control switches. Refer to Selector Switches on page 5 for further information.
4
1 32 5 6 74
C12 • C22 • L20 OPERATION MANUAL
C22 Controller Module (continued)
MODEL
C22
CH 2 OUTPUTS
PROCESSED LOOPING / HPF
LOOPING / HPF
CH 2 INPUT
PIN 1 = GND
PIN 2 = +
PIN 3 = -
GROUND
CH 1 INPUT
CH 1 OUTPUTS
RENKUS-HEINZ
MADE IN USA
PROCESSED
1 & 7. Channel 2 & 1 "Processed Output" Connector
Male 3-pin XLR type controller "processed output" connectors for Channels 2 & 1; provide
"looping" controller processed outputs for use in driving additional amplifiers.
2 & 6. Channel 2 & 1 "FR/HPF Output" Connector
Male 3-pin XLR type controller output connectors for the FR/HPF channels; used to drive
additional amplifiers. An internal selector switch determines whether this connector provides a
full-range "looping" output or a processed band-limited "high pass filter" output. Refer to
Selector Switches below for further information.
3 & 5. Channel 2 & 1 Audio Input Connectors
Female 3-pin XLR type input connector for Channel 2 & 1. Refer to Audio Input Connector
under the C12 for additional details.
4. Ground Lift Switch.
The Ground Lift switch is used to separate the signal ground circuit from the amplifier ground
circuit and thus, eliminate hum induced by ground loops. In the right position, the input signal
ground is electrically connected to the amplifier ground circuit (the chassis). In the left position,
only an AC connection is provided between the signal ground and the amplifier ground circuit
(the chassis).
Output
Connections
Input
Connections
Ground Lift
Switch
Note: When the processed controller outputs are used to drive additional amplifiers, it is
imperative that the amplifier's level controls be set at the same or a higher level than the level of
the amplifiers being driven. Otherwise, the protection feature is lost for the other amplifiers.
4. Selector Switches
The C22 Loudspeaker Controller Module has several selector switches and a Stereo/Bridging
Jumper plug that are accessible when the module is outside the amplifier. The location of these
controls is shown in the outline drawing on the next page.
The Looping/HPF switches control the signals to the Looping/HPF output connectors. In the
Filtered position, the associated output connector is connected to the output of that channel's high
pass filter. In the other position, the connector parallels that channel's input connector and
servers as a "looping" output. The HPF setting is used to deliver a band-limited signal to an
additional amplifier for "non-overlap" operation (refer to the system wiring diagram on the
previous page for further information.)
The Stereo/Bridging Jumper plug is used to "bridge" the two output channels together to provide
a single output with twice the power capabilities of a single channel. Note that the Jumper Plug is
located under the right PK22-xxx kit, which must be removed (unplugged) to gain access to the
Jumper Plug.
5
Selector
Switches
C12 • C22 • L20 OPERATION MANUAL
C22 Controller Module (continued)
Looping/HPF Selector
Switches
C22 Setup
Switches
L20 Limiter Module
sw 2
Filtered
sw 1
PK22-xxx Kit
sw 1
Filtered
PK22-xxx Kit
sw 2
Stereo Bridged
Stereo/Bridged
Jumper Plug
sw 3 sw 3
C22 Controller Module Physical Layout
The switches identified as sw 1, sw 2 and sw 3 are used to configure the C22 for specific
loudspeakers. The proper settings for these switches are shown in the enclosed charts.
Ch. 2 Input
Ch. 1 Input
MODEL
CH 2
L20
OUTPUT
T 10 A
117 V ~
250 V
HPF SELECT
LIMIT SET
CH 2 INPUT
2
PARALLEL
STEREO
BRIDGE
PIN 1 = GND
PIN 2 = +
PIN 3 = -
BRIDGE
GROUND
X
CH 1 INPUT
1
OUTPUTS
STEREO 4 OHM MIN./CH.
BRIDGED MONO 8 OHM MIN.
HPF SELECT
LIMIT SET
Channel 1 & 2 looping outputs (unprocessed
signals) to additional power amplifiers,
CH 1
OUTPUT
IRVINE, CA - U.S.A.
MODEL P-2400
POWER CONSUMPTION : 920 W
SERIAL N
RISK OF ELECTRICAL SHOCK
DO NOT OPEN
T O REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
TO REDUCE THE RISK OF ELECTRICAL SHOCK
DO NOR REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
MANUFACTURED IN EEC
Channel 1
Channel 2
Channel 1 and 2 outputs to loudspeakers.
The L20 is a dual-channel limiter module. It is not loudspeaker specific and is provided with
user adjustable limit and HPF (high pass filter) controls (refer to drawing on next page). It is used
to provide limiting on both amplifier channels (loudspeaker protection) plus low frequency
rolloff.
Looping
Outputs
HPF Selectors
1 & 6. "Looping" Audio Output Connectors
These male 3-pin XLR type connectors are wired in parallel with the input connectors and
provide unprocessed "looping" Channels 1 and 2 outputs. They allow "looping" through to
additional amplifiers.
2 & 5. HPF Selector Switches
Three position switches allow the Channel 1 and 2 low frequency rolloff points to be set at either
30 Hz, 60 Hz or 100 Hz to protect small loudspeakers from over excursion damage.
6
C12 • C22 • L20 OPERATION MANUAL
L20 Controller Module (continued)
32 5 64
INPUTOUTPUT
PARALLEL
STEREO
PIN 1 = GND
PIN 2 = +
PIN 3 = -
BRIDGE
GROUND
X
98 10
OUTPUTINPUT
CH 1
HP FILTER
100Hz
60Hz
30Hz
LIMIT
100 200 350
(400) (800) (1400)
BRIDGE
RENKUS-HEINZ
MADE IN USA
MODEL
L20
1
(400) (800) (1400)
BRIDGE
CH 2
HP FILTER
60Hz
LIMIT
100 200 350
7
100Hz
30Hz
3 & 4. Audio Input Connectors
Female 3-pin XLR type input connectors for Channels 1 and 2. Refer to section 6 on page 9 for
wiring details.
7 & 10. Limit Set Switches
Three position switches allow the Channel 1 and 2 maximum output levels to be set at either 100,
200 or 350 watts into 8 ohms (400, 800 or 1400 watts in bridge mode).
8. Stereo - Parallel - Bridge Output Mode Selector
The Output Mode Selector allows the amplifer to be operated in 3 different output modes.
Input
Connectors
Limit Set
Switches
Output Mode
Selector
In the Stereo mode, the two channels operate independently, just as they do in a stereo amplifier:
signals fed into the two amplifier inputs are amplified separately and delivered in phase to outputs
1 & 2. The output levels are controlled separately by the front panel mounted attenuators.
In the Parallel mode, input 2 is disabled and the two amplifier channels operate in parallel from a
single input signal fed into the Channel 1 input. This eliminates the need to install a jumper cable
to operate the amplifier channels in parallel. The outputs are separate and in phase and both input
attenuators are active to permit different level settings for each channel.
In the Bridge mode, a single signal fed into the Channel 1 input, drives both output channels in
tandem and the output is delivered to the Bridge Output connector. This mode allows the two
amplifier outputs to be strapped together ( "bridged") to produce a single output with double the
power capabilites of a single channel. Input #2 is disabled. Both input attenuators are active and
must be set to the same level. Note that in bridge mode both sides of the output should be considered hot and should not be grounded and that the Limit and HPF switches should be set in the
same position.
9. Ground Lift Switch.
The Ground Lift switch is used to separate the signal ground circuit from the amplifier ground
circuit and thus, eliminate hum induced by ground loops.
In the left position, the signal ground is electrically connected to the amplifier ground circuit (the
chassis). In the center position, the input signal ground is electrically disconnected from the
amplifier ground circuit (the chassis). In the right position, an AC only connection is provided
between the signal ground and the amplifier ground circuit (the chassis).
Ground Lift
Switch
7
C12 • C22 • L20 OPERATION MANUAL
Ch. 1
Input
Ch. 1
Input
Ch. 1
Input
Diff. Amp
Diff. Amp
Diff. Amp
Low Freq
High Pass
Filter
High Freq
High Pass
Filter
High Pass
Filter
High Pass
Filter
High Pass
Filter
Low
Frequency
EQ
High
Frequency
EQ
EQ
EQ
Delay
Circuit
Low Freq
Low Pass
Filter
High Freq
Low Pass
Filter
Excursion
Limiter
Limiter
Limiter
C12 Controller Module Block Diagram
Excursion
Limiter
Excursion
Limiter
Low Pass
Filter
Low Pass
Filter
Diff.Amp
Peak
Limiter
Ch. 1 Looping/
HPF Switch
Looping
HPF
Peak
Limiter
Thermal
Limiter
Thermal
Limiter
Peak
Peak
Thermal
Limiter
Thermal
Limiter
Diff. Amp
Inverter
Diff. Amp
Diff.Amp
Diff. Amp
Bridge/Stereo
Jumper
SUB/LF
Output
To Ch. 1
Amp.
FR/HF
Output
To Ch. 2
Amp.
Ch. 1
Processed
output
To Ch.1
Amp.
Ch 1 Looping/
HPF output
To Ch. 2
Amp.
Ch. 2
Processed
output
+
Ch. 1 Input
–
+
Ch. 2 Input
–
High Pass
Filter
Parallel/Stereo/Bridge
Switch
Diff. Amp
Diff. Amp
Ch. 2 Looping/
HPF Switch
Looping
Diff.Amp
HPF
C22 Controller Module Block Diagram
High Pass
Filter
High Pass
Filter
Channel 1
HPF Jumper
Channel 2
HPF Jumper
Peak
Limiter
Peak
Limiter
L20 Limiter Module Block Diagram
Low Pass
Filter
Low pass
Filter
Ch 2 Looping/
HPF output
To Ch. 1
Amp.
Ch. 1
Looping
Output
To Ch. 2
Amp.
Ch. 2
Looping
Output
8
17191 Armstrong Ave. Tel 714-250-0166
Irvine, CA, 92614 Fax 714-250-1035
RH 368 33/97
Loading...