Page 2 - Important Precautions
1. Save the carton and packing material even if the equipment has arrived ingood condition. Should you ever needto ship the unit, use only the originalfactory packing. 2. Read all documentation before oper- ating your equipment. Retain all doc-umentation for future reference. 3. Follow all instructi...
Page 3 - Power Amplifier Owner’s Manual; Table of Contents
Crest Audio PL Series Power Amplifiers Page 3 Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 Introduction Unpacking Installation and Mounting Front Panel Rear Panel Internal Configuration and Control Operation Connecting Power / Circuit Size Requirements Cooling Requirements Connecting Inputs...
Page 4 - Note: see Appendix E for detailed PL9001 rear panel drawings.
Page 4 Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL ACTIVE PROTECT SIGNAL CLIP - 6 - 1 0 - 1 5 - 3 0 - 8 0 - 3 - 1 0 d B CH B ACTIVE PROTECT SIGNAL CLIP CH A 9001 PROFESSIONAL POWER AMPLIFIER PL - 6 - 1 0 - 1 5 - 3 0 - 8 0 - 3 - 1 0 d B Front height...
Page 6 - Front Panel; Two front panel mounting holes are provided on each mounting ear.
Front Panel 1. Rack Mounting Ears. Two front panel mounting holes are provided on each mounting ear. 2. Rack Handles. Rack handles are removable by removing screws on back of rack ears. 3. Fan Outlet Grills. PL Series amplifiers are cooled by two, rear-mounted fans. Cool air flows over the heat sink...
Page 7 - Rear Panel; Five-Way Binding Post Output Connectors
Rear Panel See Appendix E for information specific to model PL9001. 10. Five-Way Binding Post Output Connectors PL Series amplifiers are supplied with 5-way Binding Posts. Connection to the binding posts can be madewith bare wire, banana plugs, or spade lug terminations. Make connections to both the...
Page 8 - Internal Configuration and Control; Input XLR Polarity
13-14. Balanced 1/4" (TRS) & XLR Input Connectors. These connectors accept input signals on balanced TRS and XLR input plugs.See the figure at the left for information on polarity. Connectors for each chan-nel are in parallel; the unused connectors may be used for “loop through” con-nection ...
Page 9 - Operation; Connecting Power / Circuit Size Requirements.; PL Series amplifier power requirements are rated at:; Cooling System and Requirements.
Operation Connecting Power / Circuit Size Requirements. PL Series amplifier power requirements are rated at: a) “idle”b) 1/8th power (“typical” music conditions)c) 1/3rd power (“continuous” music conditions)d.) maximum rated power (circuit breaker limited). The maximum power current draw rating is l...
Page 11 - See figures on page 12 showing output connection information.
Mode Selection. The three-position, recessed Mode Select switch (located on the rear panel) configures the amplifier foreither Stereo, Parallel or Bridged Mono Mode. Amplifiers are factory-configured for Stereo Mode. Stereo Mode. In Stereo Mode, both channels operate independently, with their input ...
Page 12 - or; Stereo Mode Connections
Page 12 Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL A A B A B A 1 3- 2+ + A A B B • • • • ++ + A B B A A B + + B B or A A or B A A A B A B A 1 3- 2+ + A A B B • • • • ++ + A B B A A B + + A A or A A A A B A B A 1 3- 2+ + A A B B • • • • ++ + A B B ...
Page 13 - TourClass; IGM Impedance Sensing.
PL Crest Audio PL Series Power Amplifiers Page 13 Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 TourClass ® Protection Every model in the PL Series incorporates TourClass protection features. Derived from Crest Audio’s exten-sive experience with the world’s largest sound rental companies, th...
Page 14 - User Precautions; Speaker Protection
User Precautions Speaker Protection All loudspeakers have electrical, thermal, and physical limits which must be observed to prevent damage orfailure. Cone or compression drivers can be damaged (sometimes to the point of failure) from excessivepower, low frequencies applied to high frequency drivers...
Page 15 - Maintenance; Service and Repair
Crest Audio PL Series Power Amplifiers Page 15 Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Maintenance A PL Series amplifier requires no routine maintenance other than occasional cleaning or replacement of thefan intake filters on the rear of the amplifier. (This operation does not requ...
Page 17 - Appendices
Page 18 - Appendix A - Amplifier Specifications
Appendix A Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Appendix A - Amplifier Specifications 1kHz, 0.01% THD+N 8 Ω Stereo Power 4 Ω Stereo Power 2 Ω Stereo Power 8 Ω Bridged Mono Power 4 Ω Bridged Mono Power 20Hz-20kHz, 0.1% THD+N 8 Ω Stereo Power ...
Page 19 - Appendix B - PL Block Diagram
Crest Audio PL Series Power Amplifiers Appendix B Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Appendix B - PL Block Diagram BRIDGED - PARALLEL - STEREO SWITCH R T 2 3 1 2 3 1 R T 2 / 3 PIN 2 / 3 + JUMPER (REAR PANEL SWITCH ON CA18) + - INVERTED NON-INVERTED PREAMP PREAMP ATTENUATOR ATTE...
Page 20 - Appendix C - Wire Gauge Chart
Appendix C Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 Appendix C - Wire Gauge Chart PL Stranded Cable Lgth.(m) 2 5 10 30 Wire Gauge (mm 2 ) 0.30.50.751.52.54 0.50.751.52.546 0.50.751.52.546 0.751.52.54610 Power Loss(8 ohm load) 2.9%1.741.160.580.350....
Page 21 - Appendix D
Crest Audio PL Series Power Amplifiers Appendix D Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL A B B A ++ + A A B B B A A B XLR Pin + 2 3 GAIN Ø dBu 40x 20x + 1 3- 2+ A A B A B A Input Connection Section Output Connection Section TRS Connector Polarity Indicator Mode Selection Switch - B...
Page 22 - Appendix E; sensitivity values at optional voltage gains of X40 and X20.; Gain Switch
Appendix E Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Appendix E PL9001 Power Amplifier - Special Functions XLR Pin + GAIN Ø dBu 40x 20x A B + A B A A A B A A B B A B B A ++ + Designed & manufactured in the USA by: Crest Audio Inc. 100 Eisenho...
Page 23 - Notes
Crest Audio PL Series Power Amplifiers Appendix E Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Notes
Page 24 - Choice of touring professionals.
Crest Audio Inc. 100 Eisenhower Dr., Paramus NJ 07652 USA TEL : 201.909.8700 FAX : 201.909.8744 http://www.crestaudio.com Printed in USA Choice of touring professionals. C4400009 C4400009 v. 1.1 10/22/97 © 1997 Crest Audio, Inc.