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AUSTRALIAN MONITOR KA1200, Руководство по эксплуатации

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Figure 4   Dimensions

10   Installation

Содержание KA1200

Страница 1: ...KA800 KA800 KA800 KA800 KA800 KA1200 KA1200 KA1200 KA1200 KA1200 O p e r a t i o n M a n u a l ...

Страница 2: ...he boundaries of an equilateral triangle is intended to alert the user that dangerous uninsulated voltages may exist within the unit senclosure Thesevoltagesmaybeofasufficient magnitude as to constitute the risk of an electrical shock This symbol is reinforced with the text ThepresenceofanEXCLAMATIONMARKcontained within the boundaries of an equilateral triangle is intended to alert the user that t...

Страница 3: ...mains turn on Input muting at turn on Input overvoltage protection Radio frequency interference suppression Short circuit protection and indication 1 Watt output indication 2 828 volts 1 dB below output clip indication Massive heat sink heat exchangers Efficient front to back cooling Dual twin speed axial fans Multi role output fault indication Front carry handles Rear rack mount ears Plug in sign...

Страница 4: ...4 Operation 13 5 Bridge Mode 15 6 Two Ohm or Not Two Ohm 16 7 Maintenance 17 8 Warranty 18 9 Specification 19 List of Illustrations Page Figure 1 Block Diagram 5 Figure 2 Front Panel Layout 6 Figure 3 Rear Panel Layout 8 Figure 4 Case Dimensions 10 Figure 5 Speakon Connector Wiring 12 Figure 6 Bridge Mode Speaker Wiring 15 ...

Страница 5: ...e KA KA KA KA KA Series amplifiers are 2 unit 3 5 tall 19 wide rack mountable units Each channel of the amplifier comprises a balanced active input with a buffered attenuator driving a differential class A drive stage which in turn drives a fan cooled class AB MOSFET output stage configured as a source follower The unit operates from a high current capable linear power supply These units have been...

Страница 6: ...6 Controls Connectors Figure 2 Front Panel Layout 2 Controls Connectors Indicators ...

Страница 7: ...e To maximise the life of your speakers try to keep clipping infrequent 3 Fault Indicator This amber LED will flash when a fault condition exists The fault detection circuit monitors the difference between drive and output in your amplifier If you have a short on the speaker output or a blown negative rail fuse the LED will flash brightly in sync with the programme This LED will also flash with pr...

Страница 8: ...8 Controls Connectors Figure 3 Rear Panel Layout ...

Страница 9: ...ing of 10 amps when operated from a 220 to 240 volt mains supply NOTE Your unit must always be earthed 10 Mains Fuse A 20mm x 5mm fuse drawer is provided within the housing of the IEC mains connector When you recieve your amplifier it will have a working fuse and a spare fuse inside the fuse drawer The drawer can only be opened once the mains lead is removed from the connector The fuse is provided...

Страница 10: ...Figure 4 Dimensions 10 Installation ...

Страница 11: ...nto its thermal shutdown mode If the units are to be operated in an environment where the airflow is restricted such as sealed racks or even when running 2 ohm loads the cooling should be supplemented by extra cooling fans to evacuate the heated air and aid the flow of cool air through the unit Input Wiring IMPORTANT Do not directly connect pin 1 on the amplifier s input or strapping XLR to the am...

Страница 12: ...se the largest gauge wire your connector will accept The longer the speaker lead the greater the losses will be resulting in reduced power and less damping at the load We recommend using a heavy duty two core flex four core flex if bi amping 10 to 12 gauge 2mm2 to 2 5mm2 or 50 0 25 or equivalent as a minimum Binding Post Outputs When terminating to the 4 mm binding post banana jack output connecto...

Страница 13: ... KA1200 KA800 KA1200 KA800 KA1200 KA800 KA1200 your amplifier goes through an establishment period before it will accept signal The Inrush Current Supression ICS circuit is in operation for the first 0 5 seconds This limitsthemainscurrenttoprevent nuisance tripping of circuit breakers During this period the THERMAL ON LED will flash redwhilst the mains voltage gradually charges up the power supply...

Страница 14: ...ng has a current flowing in it The current flowing through the wire produces a voltagedropduetothewire sresistance Thisvoltage difference between the amp earth and source equip ment earth appears to the amplifier s input as a signal and is amplified as hum There are three things you can do to avoid earth loop problems Ensure your mains power for the audio system is quiet i e without equipment on i...

Страница 15: ... requirements for an applicable load As shown inFigure 6 there are three steps in setting up yourKA800 KA1200 KA800 KA1200 KA800 KA1200 KA800 KA1200 KA800 KA1200amplifierforrunningitinBRIDGE mode Whilst the amplifier is off 1 ConnectthesignalsourcetotheChannel Afemale input XLR The Channel A attenuator becomes the level control for both channels 2 Engage the push to bridge switch 3 Connect your lo...

Страница 16: ...a given frequency Though this method is in line with the variousstandardsthatexist itonlygivesanindication to the maximum voltage swing before clipping for a given load This method of rating power does not give an indication of the current Ampere capability of the amplifier nor does it show the amplifier s ability to sustain high energy waveforms Your KA800 KA1200 KA800 KA1200 KA800 KA1200 KA800 K...

Страница 17: ...environment and the amount of use The fan blades are accessible once the lids are removed and can be easily cleaned You need only Maintenance 17 hold the fan rotor still and wipe the dust off the blades Many users stall the fan and use compressed air to blow the dust off the fan blades It is important to note that the fan blades must be held still whilst blowing air over the blades otherwise you m...

Страница 18: ...t immediately after unpacking the product This card is to be sent DIRECTLY to Australian Monitor NOTE Warranty is effective ONLY upon receipt of this card COMPANY NAME MODEL ADDRESS SERIAL No DATE PURCHASED CITY DEALER STATE CODE COUNTRY of this manual Australian Monitor reserves the right to refuse warranty service where the owner fails to take reasonable care in use and maintenance of the amplif...

Страница 19: ...MRR 1 kHz re 8 ohm rating 80 dB Signal Noise ratio A weighted re 8 ohm rating 100 dB Crosstalk 1 kHz re 8 ohm rating 90 dB Dimensions H x W x D excluding handles 3 5 x 19 x 14 8 inch 88 x 482 x 375 mm including handles 3 5 x 19 x 17 7 inch 88 x 482 x 450 mm 19 inch EIA rack mounting 2 units high Model KA800 KA800 KA800 KA800 KA800 Output Power E I A 1 kHz 0 1 THD N 8ohm 4ohm Single channel driven ...

Страница 20: ...ey Ph 02 9647 1411 Fax 02 9648 3698 E mail nsw audiotelex com au Melbourne Ph 03 9890 7477 Fax 03 9890 7977 E mail vic audiotelex com au Brisbane Ph 07 3852 1312 Fax 07 3252 1237 E mail qld audiotelex com au Adelaide Ph 08 8352 4444 Fax 08 8352 4488 E mail sa audiotelex com au Perth Ph 08 9228 4222 Fax 08 9228 4233 E mail wa audiotelex com au Auckland Ph 09 415 9426 Fax 09 415 9864 E mail audiotlx...

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