Crown CROWN K Series Скачать руководство пользователя страница 40 | Manualshive

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Содержание CROWN K Series

Страница 1: ...ark of Crown International Inc Other trademarks are the property of their respective owners 120 VAC North American Units Only Commercial Audio E106377 Lightning Bolt Symbol This symbol is used to alert the user to the presence of danger ous voltages and the possible risk of electric shock Exclamation Mark Symbol This symbol is used to alert the usertomakespecialnoteofim portant operating or mainte...

Страница 2: ...as been partially or totally immersed in any liquid The amplifier has been dropped or the chassis has been damaged You notice a marked change in per formance or your K Series amp oth erwise does not appear to operate normally CAUTION Do not locate sensitive high gain equipment such as preamplifiers or tape decks directly above or be low the unit If an equip ment rack is used we recommend locating ...

Страница 3: ...chment points Clean your K Series amp only with a damp cloth DO NOT BYPASS OR DEFEAT THE GROUNDING OR POLARIZATION MEANS USED ON THE K SERIES AMPLIFIERS MAKE SURE ALL BLADES ON THE POLARIZED POWER PLUG CAN BE FULLY INSERTED INTO THE EXTENSION CORD RECEPTACLE OR OTHER OUTLET THAT WILL BE USED WITH THE UNIT WARNING Shock hazard To reduce the risk of fire or electric shock do not expose this unit to ...

Страница 4: ...been tested and found to comply with the limits for a Class A digital Device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interfer ence when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manu...

Страница 5: ...Page 5 K Series Balanced Current Amplifier ...

Страница 6: ...puts coming from your mixer preamp or other processor You can use either balanced 1 4 inch phone or 3 pin XLR connectors You can also choose to run in MONO mode with either bridged outputs Y inputs or both If so see the sections starting on page 14 for further instructions 4 Connect the output wiring left and right speakers 5 Connect your K Series amp and other equipment to the ap propriate power ...

Страница 7: ...ntil it s too late Please exercise caution and drive your speakers responsi bly or at least warn your neighbors 9 You may notice that your K Series amplifier becomes warm to the touch after a few minutes of use Don t be alarmed This is a normal operating condition for your K Series ampli fier The K Series of amplifiers are designed to be convection cooled and therefore radiate heat passively to th...

Страница 8: ...Page 8 K Series Balanced Current Amplifier ...

Страница 9: ...ectors 12 13 2 1 Mounting Dimensions 14 2 2 Mono Mode Switches 15 2 3 Input Sensitivity Switch 15 2 4 Typical Input Wiring 16 2 5 Stereo Output Wiring 17 2 6 Bridge Mono Output Wiring 18 2 7 Stereo Hookup 19 2 8 Bridged Mono Output Hookup 19 2 9 Y Mono Input Hookup 20 2 10 Y Mono Input Bridged Output 20 3 1 Front Panel Indicators Controls 21 3 2 Back Panel Controls 23 3 3 Back Panel Fuse Location ...

Страница 10: ...ithout all of the associated heat you find in a conventional amplifier And that s very good news for you How high is the power output The K1 amplifier produces an impressive 1 500 watts and weighs only 32 pounds while the K2 produces a whopping 2 500 watts while weighing only 38 pounds both without using a cooling fan Of course the ab sence of a cooling fan means your amp runs quieter no fan noise...

Страница 11: ...ve an amazing range of loudspeakers making it one of the most versatile amplifiers ever Plus your K Series has one of our most so phisticated and totally automatic protection systems so your amplifier will keep working long after other amplifiers have shut down It s part of our philosophy Your show must go on This manual will help you correctly set up and use your new amplifier we strongly recomme...

Страница 12: ...Page 12 K Series Balanced Current Amplifier Fig 1 2 The Big Picture Controls Indicators Connectors ...

Страница 13: ...ge 13 K Series Balanced Current Amplifier Note K1 amplifier and CE European versions of both amplifiers feature identical front and back panel layouts except for product nameplates and fuse specifications ...

Страница 14: ...s designed to be mounted in a standard 19 inch 48 3 cm equipment rack It has been furnished with a convenient 3 foot long AC power cord To meet system compliance this cord must be plugged into a local rack mounted commercial grade electrical outlet box Extension cords are not to be used The amp has a unique front panel design which provides exceptional air circulation between K Series amps which m...

Страница 15: ...tem from the K Series amp Turn the Y input switch to ON if you want both inputs to be connected in parallel Use this configuration if you want a common audio signal to feed out to two channels each having its own level control You might use this setup if you re running to a monitor speaker on one chan nel and a main speaker stack on the other channel You may also want to configure your system to t...

Страница 16: ...eld or a high density braid are superior Cables with a stranded spiral shield although very flexible will break down over time and cause noise problems 2 Try to avoid using unbalanced lines with professional equip ment If you have no choice keep the cables as short as pos sible Refer to the section Balancing the Line on page 28 3 To minimize hum and crosstalk avoid running low level input high lev...

Страница 17: ...ud speakers If the Bridge Output switch is turned OFF con nect the positive and negative leads of each loudspeaker to the appropriate Channel 1 and Channel 2 output connectors as shown in Figure 2 5 Output Wiring Tips 1 To prevent possible short circuits wrap or otherwise insu late exposed loudspeaker cable connectors 2 Do not use connectors that might accidentally tie conduc tors together when ma...

Страница 18: ...ver short or parallel the output channels of a K Se ries amplifier to itself or to any other amplifier Detailed diagrams of the four possible input to output configurations stereo bridged mono Y mono and Y input to bridged mono are shown on the following pages 7 Turn on all equipment ahead of the amplifier such as the mixer or preamplifier Adjust their signal levels to their optimum signal to nois...

Страница 19: ...19 K Series Balanced Current Amplifier 2 1 Fig 2 7 Stereo Hookup two stacks one amp stereo in stereo out Fig 2 8 Bridged Mono Output Hookup mono or stereo In mono out great for subs or when you want it LOUD ...

Страница 20: ...Y Mono Input Hookup Great for when you want independent level controls for monitors and main stacks Fig 2 10 Y Mono Input to Bridged Mono Output Hookup When you want plenty of power such as running a sub bass and you need to daisy chain the input signal ...

Страница 21: ...tors gradually turn brighter as the TLC protection becomes greater Clip The orange Clip indicators turn on when distortion of any type becomes audible in the amplifier output For the first time in its 50 year history Crown has added clip lights to an amplifier We had resisted this feature in the past because our IOC system was more sensitive than clip indica tors We know that having good informati...

Страница 22: ... brief two second delay while the amplifier performs a quick start up test Then the Enable indi cator will turn on to its full brightness If no signal is present the Enable indicator will switch to a dimmer green Controls Level You can adjust each channel s output using the cali brated level control on the front of the amplifier To turn down the level rotate the control counter clockwise To turn u...

Страница 23: ...ange InputSensitivity Theinputsensitivitysettingdeterminestheover all gain of the amplifier Although you might me tempted to config ure your amp to get as much gain as possible after all you just paid lots of money for this little beauty you should instead look at your operating conditions and adjust the input sensitivity accordingly First check to make sure your mixer or console is being operated...

Страница 24: ...the output if so set it to the 4 dB position 2 Turn the amplifier level controls all the way down counter clockwise Then move the sensitivity switch to the 1 4 V position This will increase the gain of the am plifier 5 5 dB for the K1 and 7 dB for the K2 Now care fully turn the amplifier level controls up clockwise to the desired level loudness Take care when you are adjusting the level controls a...

Страница 25: ...trol will work Y Input This on off switch combines the two amplifier input channels by Y ing or paralleling them together When the Y Input switch is turned on a signal fed into either input channel will be fed to both outputs and the individual level controls of each channel will continue to work independently Fuses A fuse is provided to protect the power supplies from excess cur rent It is locate...

Страница 26: ...anel controls and indicators from inadvert ent abuse Until now all professional audio systems had either internal or ex ternal auxiliary air systems facilitating the cooling of the electron ics WiththeK Series wehavemadefansunnecessaryfornormal operation If you are operating the K Series amp in very high ambient tem peratures or if you notice theTLC indicators starting to illuminate do not despair...

Страница 27: ... no steps are taken to reduce the input signal or attempts made to improve air circulation The amplifier will not shut down you ll still be rockin with plenty of distortion free decibility If you can t or don t want to change the preceding conditions two possible alternatives are available to add the necessary air movement First you can add fans to direct air onto any surface of the amplifier Seco...

Страница 28: ...re susceptible to noise and is not usually used in professional applications For the cleanest signal without unwanted hum and buzz bal anced line is always recommended It is especially helpful if you have a long cable run over 10 feet 3 m since noise is easily introduced into long unbalanced lines Getting Rid Of Dr Hum and Mr Buzz If you have noticeable hum or buzz in your system you may want to c...

Страница 29: ...essful so far 5 NEVER use a ground lift adapter to lift the power ground on a 3 wire AC cord this is not its intended purpose It is better to have it SAFE than SILENT Look for the true source of the noise 6 Even when interfacing to an unbalanced load it is preferable to use two conductor shielded cable 7 Get rid of the lighting company Check Figure 4 2 to see if your cable has been wired with the ...

Страница 30: ...Page 30 K Series Balanced Current Amplifier Fig 4 3 Unbalanced Input Wiring A couple more wiring diagrams ...

Страница 31: ...l to Noise A weighted 100 dB below rated power Voltage Gain 1 4 VRMS or a fixed voltage gain of 26 dB back panel switchable Damping Factor GREAT 3 000 from 10 to 400 Hz See Figure 5 2 LineVoltage Requirements Universal power sup ply can be configured to operate with 100 120 200 220 230 240 250 VAC at 50 or 60 Hz Adapters are acquired through an Authorized Service Center Controls How To Turn It On ...

Страница 32: ...A green LED for each channel which flashes dimly when a very low level signal as low as 10 mW is present in the output They flash brightly when a louder signal at least 1 watt is present at the output Enable A green LED that turns on when the amplifier has been turned on and has power When first turned on there will be a brief two second delay while the amplifier performs a quick turn on diagnosti...

Страница 33: ...ection circuitry protects the amplifier from excessive heat by subtly and dynamically reducing the gain only when necessary to reduce heat levels Transformer overheating an extremely unlikely event will result in a temporary shutdown when it has cooled to a safe temperature the transformer will automatically reset itself Controlled slew rate voltage amplifi ers prevent RF burnouts and input overlo...

Страница 34: ...th durable black finish Cooling High performance passive convection cooling sys tem allows the amplifier to drive 2 ohm loads to high music sound levels 6 dB into clip in a 40 C 104 F ambient envi ronment Dimensions Standard 19 inch 48 3 cm rack mount width EIA RS 310 B 3 5 inch 8 9 cm height and 16 inch 40 6 cm depth behind front mounting surface Weight The K2 weighs a mere 38 pounds 17 3 kg The ...

Страница 35: ...cy Amplitude Response Fig 5 2 Superior Damping Factor Provides Best Bass Control in the Industry Test of K2 Amp Serial Number 106390 0 0 6 0 dB 10 0 20 0 10 100 1 K 10 K 100 K FREQUENCY Hz DAMPING 10 100 1000 100 1 000 10 000 100 000 FREQUENCY Hz K2 MA 2400 Brand X 001 ...

Страница 36: ...ice Service may be obtained in one of two ways from an autho rized service center or from the factory but not your local quick lube center You may choose either It is important that you have your copy of the bill of sale as your proof of pur chase Service at a North American Service Center This method usually saves the most time and effort Simply present your bill of sale along with the defective ...

Страница 37: ... or wooden crates any other packing material will not be sufficient to withstand the stress of shipping Do not use loose small size packing materials 3 Do not ship the unit in any kind of cabinet wood or metal Ignoring this warning may result in extensive damage to the unit and the cabinet Accessories are not needed do not send cables and other hardware Do not send this instruction manual if we fo...

Страница 38: ...not later than ninety 90 days after expiration of the warranty period All components must be shipped in a factory pack which if needed may be obtained from us free of charge Corrective action will be taken within a reasonable time of the date of receipt of the defective product by us or our authorized service center If the repairs made by us or our authorized service center are not satisfactory no...

Страница 39: ...t from the date of original purchase Warranty work can only be performed at our authorized service centers We will remedy the defect and ship the product from the service center within a reasonable time after receipt of the defective product at our authorized service center HOW TO OBTAIN WARRANTY SERVICE You must notify us of your need for warranty service not later than ninety 90 days after expir...

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