background image

Professional Power Amplifier

User Manual

Содержание Pulse 4X300

Страница 1: ...Professional Power Amplifier User Manual...

Страница 2: ...nd 4 9 c Bridge switches 9 6 0 Indicators 10 A AC Present 10 B Operate 10 C Fault 10 D Temp 1 2 3 4 10 E Signal 11 F Clip 11 G Bridge 11 7 0 Typical applications 12 a Four Channel Sound Reinforcement...

Страница 3: ...rounding type plug has two blades and a third grounding prong The wide blade or the third prong is provided for your safety If the provided plug does not fit into your outlet consult an electrician fo...

Страница 4: ...amplifiers that are capable of maintaining excellent performance when being driven to their limit with real loudspeaker loads Sonic performance is always in the forefront of our minds and to this end...

Страница 5: ...air so fan filters will not normally be required If however the amplifier is to be used in an environment where the intake air might be excessively dirty optional external fan filters should be purch...

Страница 6: ...60Hz AC power Acceptable AC input supply voltage ranges from 180V to 265V The application of voltages above those specified may cause permanent damage that is not covered by your warranty Lower volta...

Страница 7: ...ternally connected to the chassis The screen of the input cable should always be connected to one of these points to ensure that EMC regulations are met The cable shield ground should also be connecte...

Страница 8: ...dance Bridge wiring Stereo wiring A u d i o C o n n e c t i o n s Bridge mono operation To use the amplifier in bridge mode for binding post connection the speakers must be connected between two RED t...

Страница 9: ...mately 870mV RMS and this level will be just sufficient with a 4 ohm load and nominal AC voltage to drive the amplifier into clip If pairs of amplifier channels are being operated in bridge mode the c...

Страница 10: ...he amplifier must be returned to an authorized service center for repair Under some circumstances the Fault light might flash with a period of about 3 seconds along with the Power light and various cl...

Страница 11: ...measures distortion This may occur either due to clipping trying to drive too low an impedance speaker load or any other mechanism that causes the output of the amplifier channel to not be as expecte...

Страница 12: ...peatedly mute at 4 second intervals See section 7e of this manual for more information about how to calculate impedance all speakers 300W 4 ohm a Four Channel Sound Reinforcement In this example each...

Страница 13: ...d the amplifier d Four Channels Driving Two Actively Crossed 2 Way Monitors Capable of driving a pair of 2 way monitors the PULSE 4x300 is great for tour sound As all channels are used independently i...

Страница 14: ...eo and between an open circuit and 4 ohms when bridged When more than 1 speaker is used it is easy to calculate the total impedance but remember that unless you are sure you know what you are doing al...

Страница 15: ...r channels to make one channel capable of providing approximately twice the power into a single load This load must be connected across the two positive channel outputs Clip or Clipping The term used...

Страница 16: ...cycle per second is equal to 1Hz The audio band is generally restricted to frequencies of 20Hz to 20 000Hz 20kHz Frequency Response The equipment s relative gain compared to frequency Generally expres...

Страница 17: ...n if headroom is inadequate Speakon A type of connector manufactured by Neutrik with either 2 4 or 8 pole connectors specifically designed for connecting speakers to amplifiers PULSE amplifiers and th...

Страница 18: ...elow clip 22kHz measurement bandwidth Frequency Response 20Hz to 20kHz 0 0 2dB 2Hz to 120kHz 0 3dB Controls Power switch bridge mode switches indented level controls these may be made tamper proof Ind...

Страница 19: ...type Speakons are rotated in the socket Problem Distorted sound Check Are the Clip lights on Is any equipment before the amp being over driven Are any speaker cables shorted Are the loudspeakers too...

Страница 20: ...t flashing The Operate and Fault light may be flashing very slowly accompanied by internal clicking A fault has been detected with one or more of the amplifier channels and the processor has shut down...

Страница 21: ...r amplifier This information is available on the Crown website or by contacting Crown Audio Customer Service see details panel 2 To ensure the safe transportation of your unit to the factory ship it i...

Страница 22: ...aser the warranty period that the new Crown product is free of defects in materials and workmanship We further warrant the new Crown product regardless of the reason for failure except as excluded in...

Страница 23: ...n of Harman International Industries Version 2 0 CB 190901 ZM10091 01 Crown part number 133783 1 Crown is a registered trademark of Crown International Other trademarks are the property of their respe...

Отзывы: