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Operation Manual

I-Tech HD DriveCore Series Power Amplifiers

page 66

I-Tech HD DriveCore Series Power Amplifiers

Operation Manual

page 67

Crown amplifiers are quality units that rarely require 

ser vicing. Before returning your unit for service, please 

con tact Crown Technical Support to verify the need for 

servicing.
This unit has very sophisticated circuitry which should only 

be serviced by a fully trained technician. This is one reason 

why each unit bears the following label:

CAUTION: To prevent electric shock, do not remove 

covers. No user serviceable parts inside. Refer 

servicing to a qualified technician.

Complete the Service Return Request form, in the back of 

this manual, when returning a Crown product to the factory 

or authorized service center. The form must be included with 

your product inside the box or in a packing slip envelope 

securely attached to the outside of the shipping carton. Do 

not send this form separately.

*Warranty is only valid within the United States of America. 

For information on Warranty outside of the U.S.A, please 

contact your local distributor.

17.1 International and Canada Service

Service may be obtained from an authorized service cen ter. 

(Contact your local Crown/Amcron representative or our 

office for a list of authorized service centers.) To obtain 

service, simply present the bill of sale as proof of purchase 

along with the defective unit to an authorized service center. 

They will handle the necessary paperwork and repair.
Remember to transport your unit in the original factory pack. 

17.2 US Service

Service may be obtained in one of two ways: from an 

authorized service center or from the factory. You may 

choose either. It is important that you have your copy of the 

bill of sale as your proof of purchase.

17.2.1 Service at a US Service Center

This method usually saves the most time and effort. Sim ply 

present your bill of sale along with the defective unit to an 

authorized service center to obtain service. They will handle 

the necessary paperwork and repair. 

Remem ber to transport the unit in the original factory 

pack. A list of authorized service centers in your area can 

be obtained from Crown Factory Service, or online from  

www.crownaudio.com.

17.2.2 Factory Service

Crown accepts no responsibility for non-serviceable 

product that is sent to us for factory repair. It is the 

owner’s responsibility to ensure that their product is 

ser viceable prior to sending it to the factory.  

For more information, please contact us direct.
A Service Return Authorization (SRA) is required for prod-

uct being sent to the factory for repair. An SRA can be 

completed online at www.crownaudio.com. If you do not 

have access to the web, please call Crown’s Customer 

Service at 574.294.8200 or 800.342.6939 extension 

8205.
For warranty service, we will pay for ground shipping both 

ways in the United States. Contact Crown Customer 

Service to obtain prepaid shipping labels prior to send ing 

the unit. Or, if you prefer, you may prepay the cost of 

shipping, and Crown will reimburse you. Send copies of 

the shipping receipts to Crown to receive reimbursement. 

Your repaired unit will be returned via UPS ground. 

Please contact us if other arrangements are required.

17.2.3 Factory Service Shipping Instruc-

tions:

1.  Service Return Authorization (SRA) is required for 

product being sent to the factory for service. Please 

complete the SRA by going to  

www.crownaudio.com. If you do not have access to 

our website, call 1.800.342.6939, extension 8205 

and we’ll create the SRA for you.

2.  See packing instructions that follow.
3.  Ship product to:  

CROWN AUDIO FACTORY SERVICE 

1718 W MISHAWKA RD.  

 ELKHART, IN 46517

4.  Use a bold black marker and write the SRA number 

on three sides of the box.

5.  Record the SRA number for future reference. The 

SRA number can be used to check the repair status.

17.2.4 Packing Instructions

Important:

 These instructions must be followed. If they 

are not followed, Crown Audio, Inc. assumes no 
respon sibility for damaged goods and/or accessories that 
are sent with your unit.  

1.  Fill out and include the Service Return Request form 

in the back of this manual or at www.crownaudio.

com.

2.  Do not ship any accessories (manuals, cords, 

hard ware, etc.) with your unit. These items are not 

needed to service your product. We will not be 

responsibility for these items.

3.  When shipping your Crown product, it is important 

that it has adequate protection. We recommend you 

use the original pack material when returning the 

product for repair. If you do not have the original box, 

please call Crown at 800.342.6939 or 574.294.8210 

and order new pack material. See instructions for 

“foam-in-place” shipping pack. (Do not ship your 

unit in a wood or metal cabinet.)

4.  If you provide your own shipping pack, the mini mum 

recommended requirements for materials are as 

follows:

 a.  275 P.S.I. burst test, Double-Wall carton that allows 

for 2-inch solid Styrofoam on all six sides of unit or 3 

inches of plastic bubble wrap on all six sides of unit.

b.  Securely seal the package with an adequate carton 

sealing tape.

c.    Do not use light boxes or “peanuts”. Damage caused 

by poor packaging will not be covered under 

war ranty.

Using your ‘foam-in-place’ shipping pack

Note: The foam-in-place packing is molded so that there 
is only one correct position for your product. 

  1.  Open carton and lift center cushion leaving both 

end-cushions in place.

17 Service

2.  Carefully place your product with the product’s front 

panel facing the same direction as arrows indicate.

3.  Reset center cushion down over top of product’s 

chassis. The foam-in-place packing was molded to 

accommodate different chassis depth sizes. If your 

product’s chassis does not completely fill the 

foam-in-place cavity, you may use a soft but solid 

packing material (such as paper or bubble wrap) 

behind the chassis.

4.  Enclose the completed Crown Audio Factory Service 

Information form (or securely attach it to the outside 

of carton) and re-seal the shipping pack with a sturdy 

carton sealing tape.

17.2.5 Estimate Approval

Approval of estimate must be given within 30 days after 
being notified by Crown Audio Inc. Units still in the 
pos session of Crown after 30 days of the estimate will 
become the property of Crown Audio Inc.

17.2.6 Payment of Non-Warranty Repairs

Payment on out-of-waranty repairs must be received 
within 30 days of the repair date. Units unclaimed after 30 
days become the property of Crown Audio Inc. 

If you have any questions, please contact Crown Factory 

Service.

Crown Factory Service 

 1718 W. Mishawaka Rd.,  

Elkhart, Indiana 46517 U.S.A.

Telephone:

  

574.294.8200 

800.342.6939 (North America,  

Puerto Rico, and Virgin Islands only)

Facsimile:  

574.294.8301 (Technical Support) 

574.294.8124 (Factory Service)

Internet:  

www.crownaudio.com

18 Warranty

SUMMARY OF WARRANTY

Crown International, 1718 West Mishawaka Road, 

Elkhart, Indiana 46517-4095 U.S.A. warrants to 

you, the ORIGINAL PURCHASER and ANY 

SUB SEQUENT OWNER of each NEW Crown 

product, for a period of five (5) years from the date 

of purchase by the original purchaser (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 this 

War ranty.

*Warranty is only valid within the United States of 

America. For information on Warranty outside of 

the U.S.A, please contact your local distributor.

ITEMS EXCLUDED FROM THIS 

CROWN WARRANTY

This Crown Warranty is in effect only for failure of 

a new Crown product which occurred within the 

Warranty Period. It does not cover any product 

which has been damaged because of any 

inten tional misuse, accident, negligence, or loss 

which is covered under any of your insurance 

contracts. This Crown Warranty also does not 

extend to the new Crown product if the serial 

number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DO

We will remedy any defect, regardless of the 

rea son for failure (except as excluded), by repair, 

replacement, or refund. We may not elect refund 

unless you agree, or unless we are unable to 

pro vide replacement, and repair is not practical or 

cannot be timely made. If a refund is elected, then 

you must make the defective or malfunctioning 

product available to us free and clear of all liens or 

other encumbrances. The refund will be equal to 

the actual purchase price, not including inter est, 

insurance, closing costs, and other finance 

charges less a reasonable depreciation on the 

product from the date of original purchase. 

War ranty work can only be performed at our 

autho rized service centers or at the factory. 

Warranty work for some products can only be 

performed at our factory. We will remedy the 

defect and ship the product from the service center 

or our factory within a reasonable time after 

receipt of the defec tive product at our authorized 

service center or our factory. All expenses in 

remedying the defect, including surface shipping 

costs in the United States, will be borne by us. 

(You must bear the expense of shipping the 

product between any for eign country and the port 

of entry in the United States including the return 

shipment, and all taxes, duties, and other customs 

fees for such for eign shipments.)

HOW TO OBTAIN WARRANTY  

SERVICE

You must notify us of your need for warranty 

ser vice within 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 

reason able 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, notify us or our 

autho rized service center immediately.

DISCLAIMER OF CONSEQUENTIAL 

AND INCIDENTAL DAMAGES

YOU ARE NOT ENTITLED TO RECOVER FROM US 

ANY INCIDENTAL DAMAGES RESULTING FROM 

ANY DEFECT IN THE NEW CROWN PRODUCT. 

THIS INCLUDES ANY DAMAGE TO ANOTHER 

PRODUCT OR PRODUCTS RESULT ING FROM 

SUCH A DEFECT. SOME STATES DO NOT 

ALLOW THE EXCLUSION OR LIMITATIONS OF 

INCIDENTAL OR CONSEQUENTIAL DAM AGES, 

SO THE ABOVE LIMITATION OR EXCLU SION 

MAY NOT APPLY TO YOU.

WARRANTY ALTERATIONS

No person has the authority to enlarge, amend, or 

modify this Crown Warranty. This Crown War ranty 

is not extended by the length of time which you are 

deprived of the use of the new Crown product. 

Repairs and replacement parts provided under the 

terms of this Crown Warranty shall carry only the 

unexpired portion of this Crown Warranty.

DESIGN CHANGES

We reserve the right to change the design of any 

product from time to time without notice and with 

no obligation to make corresponding changes in 

products previously manufactured.

LEGAL REMEDIES OF PURCHASER

THIS CROWN WARRANTY GIVES YOU SPECIFIC 

LEGAL RIGHTS, YOU MAY ALSO HAVE OTHER 

RIGHTS WHICH VARY FROM STATE TO STATE. 

No action to enforce this Crown Warranty shall be 

commenced after expiration of the warranty 

period.
THIS STATEMENT OF WARRANTY SUPERSEDES 

ANY OTHERS CONTAINED IN THIS MANUAL 

FOR CROWN PRODUCTS.                 5/11

UNITED STATES & CANADA

YEAR

5

Содержание I-Tech 4x3500 HD

Страница 1: ...arise during installation operation or maintenance The information provided in this manual was deemed accurate as of the publication date However updates to this information may have occurred To obtai...

Страница 2: ...te nance ATENCION CON ESTOS S MBOLOS El tri ngulo con el s mbolo de rayo el ctrico es usado para alertar al usuario de el riesgo de un choque el ctrico El tri ngulo con el signo de admiraci n es usado...

Страница 3: ...up and operate your amplifier It does not cover every aspect of installation setup or operation that might occur under every condition For addi tional information please consult the online help in Sys...

Страница 4: ...way from the amplifier 2 2 Connecting to AC Mains WARNING The third ground prong of the supplied AC power cord connector is a required safety feature Do not attempt to disable this ground connection b...

Страница 5: ...l voltages exist at the output connectors when the amplifier is turned on and is passing a signal Using the guidelines below select the appropriate size of wire based on the distance from amplifier to...

Страница 6: ...governments businesses and individuals everywhere Reducing energy consumption is fundamental to the reduction of greenhouse gas emissions and is likely to impact various elements of our lifestyle Main...

Страница 7: ...fast recovery on peak transients accurate reproduction of low level detail and precise tracking of low frequencies at high power levels for maximum subwoofer output Figure 4 1 I Tech HD 2 Channel Fron...

Страница 8: ...stantly flashing 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy and loudspeaker damage may result 8 Do n...

Страница 9: ...THE RISK OF ELECTRIC SHOCK GROUNDING MUST BE MAINTAINED OUTPUTS CH1 CH2 CH3 CH4 CLASS 2 OUTPUT WIRING REG U S PAT OFF 5 657 219 6 504 348 6 909 321 7 283 379 7 557 622 7 919 998 7 778 324 7 521 936 7...

Страница 10: ...reach the desired channel then press the encoder wheel to select that channel and turn the Encoder Attenuation changes 0 5 dB per detent when you turn the Encoder slowly and more when you turn the En...

Страница 11: ...ator Link You can set the attenudators to be independent or linked Turn an Encoder knob to choose one of those options then press the knob to save your choice AES Input Trim Turn the Encoder knob to v...

Страница 12: ...the encoder wheel to select a channel icon to turn speaker load monitoring on or off for a channel When load monitoring is on the load connected to the amplifier output is displayed The text below th...

Страница 13: ...A line voltage error occurs if the line voltage falls outside the values set with the High Low Limits slider on the Line Voltage Page of the Control Panel When an error occurs the count displayed in...

Страница 14: ...he drive levels frequency bands delays and limiting for your particular speakers EQ filtering compression and much more System Architect software lets you adjust the DSP settings such as filter slope...

Страница 15: ...4 channels of digital audio using a standard CAT5 cable 7 6 Networking the Amplifier If you need help understanding network concepts please see Appendix A on Network and CobraNet Basics Please check...

Страница 16: ...2 3 and 4 Level Controls set the input signal level of each channel Each channel can be muted and both faders can be linked with the Link button Input Signal Level Meter green The measure ment range...

Страница 17: ...gnal Detect Threshold that the user defines the input switches to the analog signal As long as the analog signal level exceeds the threshold or as long as its level falls below threshold for a user de...

Страница 18: ...fined as the time it takes the compressor to attenuate the signal gain by 20 dB The range is from 1 millisecond to 0 1 second Release Time Sets the release time of the compressor The release time is d...

Страница 19: ...ed in various configurations In Duplicate mode the same settings are used on both channels allowing two FIR filters per bandpass In Unique mode the FIR filters are limited to one per bandpass However...

Страница 20: ...h amplifier LCD screens to lock so they can t be changed 7 Advanced Operation 7 7 13 Amplifier Settings The Amplifier Output Enable button turns each channel on or off Error Reporting The I Tech ampli...

Страница 21: ...green LED After blackout mode is enabled an Encoder press turn will reactivate the display If no button is pressed turned for over 5 seconds the display will return to blackout mode Front Panel Displ...

Страница 22: ...at the same time 7 Advanced Operation Maximum analog input Low 21 dBu 0 dB High 15 dBu 6 dB Analog input AES input Cobranet input Analog input sensitivity Source select AES input trim Cobranet input t...

Страница 23: ...input Check gain staging and output levels of the mixer or preamp 8 Troubleshooting CONDITION No sound even though the amp has power Power LED is on with out flashing and the amp is receiving an inpu...

Страница 24: ...6 kHz Cirrus Logic Digital Input AES EBU 24 bit 32 96 kHz Onboard sample rate converter Network Onboard HiQnet and TCP IQ compatible with standard 100Mb Ethernet hardware DSP 24 bit conversion with 32...

Страница 25: ...fiers page 48 I Tech HD DriveCore Series Power Amplifiers Operation Manual page 49 Figure 9 1 Typical Frequency Response 1W Figure 9 2 Typical Crosstalk vs Frequency 9 Specifications Charts Figure 9 3...

Страница 26: ...50 60 Hz Crown s Switching Power Supply minimizes the amplifier s weight Typical non switching power supplies require large heavy transformers in order to produce the required power at the output stag...

Страница 27: ...etwork has its own unique MAC address The MAC address is printed on a label outside the component It is shown in hexadecimal format as 6 two byte octets such as 00 0A 40 00 DC 2F HiQnet Address When y...

Страница 28: ...ailable Figure 12 3 Star Topology Figure 12 4 Multi Star Topology In System Architect you create audio connections between sending devices transmitters and receiving devices receivers For example a mi...

Страница 29: ...14 4 Peak Limiter Release sec In Auto mode the peak limiter release time is determined by the high pass frequency defined in the XOVER block For Advanced and Manual modes the peak limiter release time...

Страница 30: ...Slope Kp Ki Look Ahead 15 Appendix B Table of Parameters Modified by Each Mode with LevelMAX Limiter Suite Enabled Parameter Auto Increment Peak Threshold See Below 1 400V 1V Peak Release 0 1ms 10s 1m...

Страница 31: ...f Rates Yes but with phase distortion Yes without phase distortion Implement Complex Filters No Yes Stability Conditionally Naturally Stable Computational Complexity Few CPU cycles Massive CPU cycles...

Страница 32: ...way system measured here has a woofer and tweeter that are separated by about 5 5 which creates an off axis polar null at about 25 at the 3 kHz crossover frequency Fig 16 4 Magnitude left and phase ri...

Страница 33: ...er and the resultant summed 1m on axis response Note the extremely sharp filter rolloffs in the left magnitude graph Note also that the right on axis response is essentially identical to the previous...

Страница 34: ...the product s front panel facing the same direction as arrows indicate 3 Reset center cushion down over top of product s chassis The foam in place packing was molded to accommodate different chassis...

Страница 35: ...ration Manual I Tech HD DriveCore Series PowerAmplifiers page 68 I Tech HD DriveCore Series Power Amplifiers Operation Manual page 69 THIS PAGE INTENTIONALLY LEFT BLANK THIS PAGE INTENTIONALLY LEFT BL...

Страница 36: ...__________________________________________________________________________________________________________________________________ _____________________________________________________________________...

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