User manual RENKUS-HEINZ L20

[. . . ] 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. [. . . ] BRIDGED MONO 8 OHM MIN. Channel 1 output to loudspeaker(s) or subwoofers. Channel 2 output to loudspeaker(s) or subwoofers. 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. 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 C12 · C22 · L20 OPERATION MANUAL C22 Controller Module (continued) 1 2 3 4 5 6 7 MODEL C22 CH 2 OUTPUTS CH 2 INPUT PIN 1 = GND PIN 2 = + PIN 3 = - CH 1 INPUT CH 1 OUTPUTS RENKUS-HEINZ MADE IN USA PROCESSED LOOPING / HPF GROUND LOOPING / HPF 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. 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. 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. 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). 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. 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. [. . . ] Amp High Pass Filter EQ Excursion Limiter Low Pass Filter Peak Limiter Thermal Limiter Diff. 1 Looping/ HPF Switch Looping High Pass Filter Diff. Amp HPF Bridge/Stereo Jumper Inverter To Ch. Amp High Pass Filter EQ Excursion Limiter Low Pass Filter Peak Limiter Thermal Limiter Diff. 2 Looping/ HPF Switch Looping High Pass Filter Diff. Amp HPF Ch 2 Looping/ HPF output C22 Controller Module Block Diagram + Ch. [. . . ]