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Related Manuals for Sherbourn PA 18-45
Summary of Contents for Sherbourn PA 18-45
- Page 1 PA 18-45 18 CHANNEL DISTRIBUTED AUDIO AMPLIFIER Owner’s Manual...
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Page 3: Important Safety Precautions And Explanation Of Symbols
Do not install the PA 18-45 on any stand, shelf, or other piece of furniture that is unable to support its weight. If a cart is used to move the PA 18-45, use caution to avoid injury from tip-over. - Page 4 PA 18-45. You should seek service for your PA 18-45 by qualified service personnel if any of the following occur: 1. The power-supply cord or the plug has been damaged.
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Page 5: Table Of Contents
Mechanical and Environmental ..............3 Front Panel ....................4 Rear Panel....................5 Inputs and Outputs ..................7 Installation Tips ...................8 Configuration ....................9 Performance Specifications ..............12 Features ....................13 Operation ....................14 Periodic Maintenance ................15 Troubleshooting ..................16 Sherbourn Technologies, LLC Ten-Year Limited Warranty .......17 Notes ......................18 Page 1... -
Page 6: Introduction
PA 18-45 18-Channel Distributed Audio Amplifier to achieve its optimum potential. The manual also includes a brief summary of the features offered by the PA 18-45 and a short description of how the controls work and how to perform common operations. -
Page 7: Mechanical And Environmental
Mechanical and Environmental SIDE 15” SHERBOURN PA 18-45 14” RACK HANDLES 3-3/8” 1/16” 17” 19” FRONT 7” 7.75” Dimensions: 17” wide x 7.75” high x 15” deep (includes feet, binding posts, no rack ears). Weight: 40 lbs / 18 kg (unboxed); 51 lbs / 23.5 kg (boxed). -
Page 8: Front Panel
Front Panel 1. On / Off Button Switches (toggles) the unit between Standby and On. 2. On / Off Indicator Illuminates red for Standby; blue for On. 3. Status LEDs (one per zone) Indicate the status of each zone. Note: Each LED indicates the status of one zone. A zone is two channels in non-bridged mode, or one bridged pair of channels in bridged mode. -
Page 9: Rear Panel
Rear Panel BUSS INPUT BUSS OUTPUT TRIGGER TRIGGER INPUT OUTPUT LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 ZONE 6 ZONE 7 ZONE 8 ZONE 9 Ch 1 Ch 2 Ch 3 Ch 4 Ch 5... - Page 10 Always replace the fuse with a time delay (slow-blow) fuse of the same value. 12. Power Switch Switches the AC mains power to the PA 18-45 On and Off. When this switch is Off, the PA 18-45 will not respond to trigger signals or manual controls.
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Page 11: Inputs And Outputs
Inputs and Outputs Analog inputs: 2 bus inputs (bus 1, bus 2); each bus has one stereo pair of unbalanced (RCA) inputs. 18 individual channel inputs; each channel has one unbalanced (RCA) input . Input sensitivity (for full output into 8 Ohms): 370 mV Speaker outputs: 18 pairs of 5-way binding posts (standard red and black);... -
Page 12: Installation Tips
Installation Tips Input Buses and Individual Inputs The system of input buses and individual inputs on the PA 18-45 offers an amazing amount of flexibility. The PA 18-45 can be treated as: • 18 separate channels, each with an individual input and level / gain control. -
Page 13: Configuration
Power rocker switch must be set to On. • When the Power Mode switch is set to On, the PA 18-45 is controlled by the front panel On / Off switch, which toggles between Standby mode and On each time it is pressed. - Page 14 Configuring a Stereo or Independent Channel Zone - Independent channels may be connected to a minimum load impedance of 4 Ohms. To configure the two channels in a zone as a stereo pair, or as independent channels, set the Bridge / Stereo switch to ST and connect one speaker to each of the left and right pairs of binding posts (as shown below).
- Page 15 Configuring a Bridged Zone - Bridged channels may be connected to a minimum load impedance of 8 Ohms. To configure the two channels in a zone as a Bridged channel, set the Bridge / Stereo switch to BR and connect one speaker to the TWO RED BINDING POSTS (as shown below). Note: The polarity markings that pertain to Bridged mode are the small “Bridge +”...
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Page 16: Performance Specifications
LED for the zone in protect mode will turn FLASHING blue. To reset the protection, turn the PA 18-45 Off and then On again using the REAR PANEL POWER SWITCH after the fault has been removed. -
Page 17: Features
Independent zone fault protection allows other zones to continue operating after one or more zones have entered protect mode and shut down. • Rack mountable. • 10 year Sherbourn Technologies Limited Warranty. You can find more information about the PA 18-45 18-Channel Distributed Audio Amplifier on our website at www.sherbourn.com. Page 13... -
Page 18: Operation
If the front panel On / Off switch is pressed while the PA 18-45 is On (after being switched on by an asserted trigger), the On / Off switch WILL override the trigger and the PA 18-45 will return to Standby position (even though the trigger is still being asserted). -
Page 19: Periodic Maintenance
If necessary, the Sherbourn PA 18-45 should be cleaned gently with a soft rag. • If something sticky gets on the front panel or case of the PA 18-45, it should be cleaned with a mild cleaning solution applied to a soft rag, followed by wiping with a clean rag dampened with plain water and drying with a soft dry rag or cloth. -
Page 20: Troubleshooting
Troubleshooting If problems occur, the first step should be to verify that the PA 18-45 is set to the proper line voltage for your AC power source, and that your power source is operating correctly. Problem: No sound is heard from any channel (the On/Off LED is not lit). -
Page 21: Sherbourn Technologies, Llc Ten-Year Limited Warranty
Sherbourn Technologies, LLC Ten-Year Limited Warranty What does this warranty cover? Sherbourn Technologies, LLC (“Sherbourn”) warrants its products against defects in materials and workmanship. This warranty is subject to revision at any time. How long does this coverage last? This warranty commences on the date of retail purchase by... -
Page 22: Notes
“RMA” written before the number. Parcels arriving without a RMA number on the outside of the box will be refused. Sherbourn Technologies, LLC Attn: Repair Department 131 Southeast Parkway Court...
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