User manual RENKUS-HEINZ P2850

[. . . ] OPERATION MANUAL P2850 · P2950 Dual Channel Power Amplifiers C12 · C22 · L20 Plug-In Controller Modules P2850/P2950 OPERATION MANUAL Cautions CAUTION TO AVOID ELECTRIC SHOCK, DO NOT INSERT FINGERS OR OBJECTS INTO ANY OPENINGS IN THE CABINET Sicherheitsvorschriften VORSICHT UM ELEKTRISCHEN SCHLAG ZU VERMEIDEN, KEINE FINGER ODER GEGENSTÄNDE IN ÖFFNUNNGEN DES GEHÄUSES STECKENN WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE Explanation of Graphical Symbols The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the use to the presence of uninsulated "dangerous Voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans. The exclamanation point, within an equilateral triangle is intended to alert the users to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. WARNUNG: ZUR VERMEIDUNG VON FEUER ODER ELEKRISCHEN SCHLÄGEN DAS GERÄT NICHT MIT REGEN ODER FEUCHTIGKEIT IN BERÜHRUNG BRINGEN Erklärung der graphischen Symbole Der Blitz mit nach untenzielendem Pfeil in einem gleichseitigen Dreieck weist den Benutzer auf das Vorhandensein einer unisolierten, "gefährlichen Spannung" im Gehäuse hin, die stark genug sein kann, einer Person einen gefährlichen elektrischen Schlag zu versetzen. Das Ausrufezeichen in einem gleichseitigen Dreieck weist den Benutzer auf wichtige Betriebs- und Wartungsvorschriften in den beiliegenden Unterlagen des Gerätes hin. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN VORSICHT GEFAHR EINES ELEKTRISCHEN SCHLAGES NICHT ÖFFNEN VORSICHT!UM DAS RISIKO EINES ELEKTRISCHEN SCHLAGES ZU VERMINDERN, ABDECKUNG NICHT ENTFERNEN. [. . . ] In the Bridge mode, a single signal is fed into the Channel 1 input which drives both output channels in tandem. 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. 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. 9 "Looping" Outputs Input Connections Output Mode Selector P2850/P2950 OPERATION MANUAL Loudspeaker Controller Modules 1 2 3 MODEL C12 INPUT PIN 1 = GND PIN 2 = + PIN 3 = - SUB/LF OUT FR/HF RENKUS-HEINZ MADE IN USA cc C12 Controller Module The C12 loudspeaker controller module is a single input, dual output controller designed for use with active 2-way loudspeakers (or 3-way loudspeakers set up for bi-amp operation) in single channel (mono) systems. In this application, it provides crossover, protection and response shaping. It is also often used as a controller to provide protection and response shaping for either subwoofers or passive 2-way loudspeakers. Input Connections 1. Audio Input Connector Female 3-pin XLR type input connector. We recommend the use of pin 2 as "hot" and pin 3 as "neutral". 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. Output Connections 2. SUB/LF "Output" Connector Male 3-pin XLR type controller output connector for the SUB/LF channel; used to drive additional amplifiers. FR/HF "Output" Connector Male 3-pin XLR type controller output connector for the FR/HF channel; used to drive additional amplifiers. Note: When the processed controller outputs are used to drive additional amplifiers, it is imperative that the source amplifier's level controls are set at the same or a higher level. Otherwise, the protection feature is lost for the other amplifiers. C22 Controller Module The C22 loudspeaker controller module is a dual input, dual output controller designed for use in stereo systems having either passive loudspeakers or subwoofers. In these systems, it provides protection for the loudspeakers or subs, as well as high & low pass filters and response shaping. Channel 2 "Processed Output" Connector Male 3-pin XLR type controller "processed output" connector for Channel 2; provides a "looping" controller processed output for use in driving additional amplifiers. Channel 2 "FR/HPF Output" Connector Male 3-pin XLR type controller output connector for the FR/HPF channel; used to drive additional amplifiers. An internal selector switch determines whether this connector 10 Output Connections P2850/P2950 OPERATION MANUAL Loudspeaker Controller Modules 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 provides a full-range "looping" output or a processed band-limited "high pass filter" output. Refer to Selector Switches on page 12 for further information. [. . . ] Both amplifiers are fan cooled and it is important that an ample supply of air is provided at the front of the amplifier and a free air exhaust space is provided at the rear of the amplifier. The internal fan provides adequate cooling when the rack has an open back and the front is not obstructed. Closed back racks may need to be pressurized and provided with an exhaust fan to ensure adequate air movement. Multiple amplifiers may be stacked directly on top of each other. [. . . ]