Crest Audio WMA 4300 Owner'S Manual Download Page 8

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Chassis Installation:

Make sure that the voltage selector switch and fuse are correct for the incoming mains voltage. An incorrect

setting could damage the unit.

Slide the chassis onto Back Box hinges.

Wire the audio inputs and amplifier speaker outputs.

Connect the IEC power cord from the Back Box to the receptacle on the fan bracket.

Set user mix and master controls to nominal. Apply power to the unit.

Adjust channel gain controls for proper levels. Adjust equalization if necessary.

Configure the cover for flush or surface mounting. Remove trim if surface mounted.

Install front cover.

Summary of Contents for WMA 4300

Page 1: ...1 WMA 4300 Professional Series Installation Power Amplifer Owner s Manual...

Page 2: ...io com products cfm cr Email techserve crestaudio com We are continuously looking for better ways to provide information about our products and your input is always appreciated ENGLISH WMA 4300 Featur...

Page 3: ...occur To correct the problem lower the corresponding channel gain in the installer controls 3 Input Signal Indicator SIG These LEDs illuminate green to indicate signal presence on the corresponding in...

Page 4: ...RNING The fuse should only be replaced when the power switch is in the off position 9 Power Switch This rocker switch applies mains power to the unit 10 Dual RCA Input Connector A user accessible dual...

Page 5: ...o 10 dB at 10 kHz It is a shelving type active control and delivers a flat response in the center 0 position 18 Balanced Input Connectors Inputs 1 4 The electronically balanced variable gain input wil...

Page 6: ...6 Block Diagram...

Page 7: ...local electrical codes If the conduit does not provide the safety ground a mains ground wire must be attached to the ground stud located close to the terminal block with the lock washer and nut provid...

Page 8: ...nges 3 Wire the audio inputs and amplifier speaker outputs 4 Connect the IEC power cord from the Back Box to the receptacle on the fan bracket 5 Set user mix and master controls to nominal Apply power...

Page 9: ...02 with nominal gain settings Signal Noise 22 Hz 22 kHz typical All controls CCW 90 dB All controls nominal 5 86 dB Outputs Power Amplifier direct out 4 Ohms Power Amplifier transformer 25V 70 V 100 V...

Page 10: ...Phantom Power Switch for Channels 2 and 3 Channel 1 Mute Threshold Control High EQ Treble Control Low EQ Bass Control Line Output Source Select Mix Channel 4 Line Output Level Control Master Mute cont...

Page 11: ...2mm x 483mm x 123mm without surface mount trim and 15 76 W x 20 56 H x 4 85 D 400mm x 522mm x 123mm with surface mount trim installed The back box shall have knock outs for 1 2 or 16mm conduit The uni...

Page 12: ...12 Here are pictures of the process The door of the WMA 150 was removed for clarity Hinge moved to accommodate new chassis Chassis fitted to back box hinges Bracket added using existing mounting holes...

Page 13: ...13 Views with chassis mounted New view of user controls...

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Page 16: ...ed only to equipment manufactured after 13 August 2005 www peaveycommercialaudio com Warranty registration and information for U S customers available online at www peaveycommercialaudio com warranty...