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Operation Manual

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page 5

Operation Manual

Features

....................................................................................................................................................................................5

Setup

 .......................................................................................................................................................................................12

I-Tech HD Amplifier Specifications

 ...................................................................................................................................12

Front & Back Panel Features

 .............................................................................................................................................13

Input Panel

 .............................................................................................................................................................................15

Input Wiring Schematic

.......................................................................................................................................................17

Input Wiring Modes

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VDrive

 .....................................................................................................................................................................................21

HiQnet™ Software

 ................................................................................................................................................................36

System Diagrams

 .................................................................................................................................................................42

Crown Audio Factory Service Information

 ......................................................................................................................46

Product Registration

 ............................................................................................................................................................47

Table of Contents

Welcome

The VRack is comprised of a rugged touring rack fitted with three Crown IT4X3500HD DriveCore Series amplifiers, a power 

input panel, and a custom engineered input panel. The input panel is mounted at the top rear and supplies CobraNet(TM) 

network connections as well as AES3, VDrive and analog XLR connections. The output connections utilize the two NL4 and 

one NL8 output connector per amplifier. The front-mounted power panel includes a 5-pin Hubbell Twist-Lock connector and a 

5-pin CEE-Form connector. 

Because the VRack is supplied with all components installed and internally connected, there is no need for laborious 

rack building; no chance that a component might be improperly connected; this results in  a dramatically lower chance of 

connection failure.

The VRack is best thought of not as just an amp rack, but as a building block for your system. Every time you add 1 VRack into 

a system, you are adding 1 block that powers your system to optimal performance, and seamlessly integrates into your system 

via analog or digital connections. 

Each IT4X3500HD has 4 channels, each one capable of 1900 watts into 8 ohms and 2400 watts into 4 ohms. The input panel 

is engineered by Crown to give the VRack user optimum flexibility when deploying a VRack system for powering VerTec 

fullsize (VT4889), midsize (VT4888), compact (VT4887A), or subcompact (VT4886) models and their companion subwoofers 

(VT4880, VT4880A, VT4881A, VT4882, VT4883) as well as the JBL VTX Series and STX Series Loudspeakers.

The input panel buffers AES signals internally, reducing or eliminating the need for additional digital AES3 distribution 

amplifiers. Through VDrive (pg.27), the user is able to run Ethernet control and AES digital audio over a single Cat5 which 

jumps from rack to rack. 

VRack is manufactured and tested to a single meticulous standard, and then shipped around the world. This means that any 

time you supply or cross-rent a VRack it is the same as every other VRack in the world.

• 3 IT4X3500HD DriveCore Series amplifiers

• Fully assembled package from one source

• Worldwide power distribution with both L21-30 and 32A CEE-Form connections

• Flexible input panel with Analog, AES, and VDrive

• Fail-over AES and network connection

• VDrive AES digital distribution over CAT5

• Built-in network control

• Built-in captive suspension 

• Shock-mounted rack

• Removable dolly board

• Side-storing rack doors

• Entire package is UL/CSA/ETL

• HiQnet™ control – System Architect, JBL Performance Manager, Powered by Crown and HiQnet Motion Control

Welcome

Features

Содержание Vrack 4x3500

Страница 1: ...information provided in this manual was deemed accurate as of the publication date however updates to this information may have occurred To obtain the latest version of this manual please visit the Cr...

Страница 2: ...EQUIPMENT FROM THE AC MAINS DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE WATCH FOR THESE SYMBOLS The lightning bol...

Страница 3: ...tegrates into your system via analog or digital connections Each IT4X3500HD has 4 channels each one capable of 1900 watts into 8 ohms and 2400 watts into 4 ohms The input panel is engineered by Crown...

Страница 4: ...l components are used within their rated workload before the array is suspended Never exceed maximum recommended load ratings Before suspending any speaker system or power amplifier rack always inspec...

Страница 5: ...k products is noted on the appropriate VRack Array Frame If interested in suspending your VRacks contact your local Crown representative for information on ordering VRack Suspension Frame Setup IEC 30...

Страница 6: ...system send 3 phase 120VAC power to the X Y and Z pin of the Cee Form connector and the VRack will operate in 208VAC operation mode Each I Tech HD amplifier will see a dedicated line to line connecti...

Страница 7: ...2 kHz SHARC A D and D A converters advanced IIR filters and linear phase FIR filters Pushbutton presets simplify setup custom presets for various loudspeakers can be downloaded or created AES3 digital...

Страница 8: ...tion the AES3 signal that is connected to AES 1 2 or AES 3 4 XLR is buffered then sent to the amplifiers via VDrive and also buffered and sent to the Network Link Out VDrive through Ethernet only When...

Страница 9: ...e any time AES3 is patched directly to the input panel VDrive must be enabled via the software or front panel display of the amplifier for the AES3 signal to be seen by the amplifier see page 21 for m...

Страница 10: ...og Mono 2 Analog Stereo AES Mono 1 AES Mono 2 AES Mono 3 AES Mono 4 AES Stereo 1 2 AES Stereo 3 4 AES Mono 1 2 AES Mono 3 4 Input Wiring Modes AES Stereo 3 4 AES Mono 1 2 Analog Mono 1 Analog Mono 2 A...

Страница 11: ...a VDrive The AES3 signal that utilizes the input panel s AES XLR connectors as an input is buffered and then sent to the amplifiers via VDrive If you are using the VDrive input on the input panel the...

Страница 12: ...iTechHD amplifiers good balance between systemwide headroom and increased array coverage Economy Power An Economy Power Econ system has the following characteristics 2 1 Ratio of Tops to Subs or no su...

Страница 13: ...2 3 3 VT4888 1 2 3 3 VTX V25 1 2 3 3 Operation Manual page 24 page 25 Operation Manual Output Wiring Modes 3 Way Mode Per Amplifier Output Wiring Modes 2 Way Mode HP Nom Econ Max VT4887A 2 3 4 4 VT48...

Страница 14: ...al Output Wiring Modes 1 Way Mode HP Nom Econ Max VT4886 2 3 4 6 Per Amplifier Output Wiring Modes Sub Mode HP Nom Econ Max VT4880A 1 1 1 1 VT4880 1 1 2 2 VTX S28 1 1 1 1 VTX G28 1 1 1 1 VT4881A 2 2 3...

Страница 15: ...Per Amplifier 3 Way Outputs 2 Way Outputs Operation Manual page 28 page 29 Operation Manual Output Wiring Modes 3 Way Sub Mode HP Nom Econ Max VT4880A 1 1 1 1 VT4880 1 1 2 2 VTX S28 1 1 1 1 VTX G28 1...

Страница 16: ...anual Output Wiring Modes 3 Way 1 Way Mode HP Nom Econ Max VT4886 2 3 4 6 Per Amplifier Output Wiring Modes 2 Way Sub Mode 2 Way Outputs HP Nom Econ Max VT4887A 2 3 4 4 VT4887 2 3 4 4 Per Amplifier HP...

Страница 17: ...er Amplifier 2 Way Outputs HP Nom Econ Max VT4887A 2 3 4 4 VT4887 2 3 4 4 Per Amplifier Output Wiring Modes 1 Way Sub Mode HP Nom Econ Max VT4880A 1 1 1 1 VT4880 1 1 2 2 VTX S28 1 1 1 1 VTX G28 1 1 1...

Страница 18: ...1 1 2 2 VTX S28 1 1 1 1 VTX G28 1 1 1 1 VT4881A 2 2 3 3 VT4882 1 1 2 2 VT4883 1 1 2 2 Per Amplifier Each NL8 output Output Wiring Modes Sub 1 Way Mode HP Nom Econ Max VT4886 A Switch 2 3 4 4 VT4886 B...

Страница 19: ...Now with a single click an entire rack setting can be recalled For most sound companies this means that with an initial investment of some time in the shop single click entire rack settings can be co...

Страница 20: ...ual representation of how to connect the VRack input panel will be shown Master Input Compressor Control Compressor Enable Disable Channel Dependent Compressor Selector Compressor Link VRack Input EQ...

Страница 21: ...fic presets by preset numbers Below is an example of how to set up a 3 Way VTX V25 preset Step 1 Select output mode for the application This example is 3 way done using OEM JBL Pro factory presets Ava...

Страница 22: ...Amplifier 3 Way 6 x VT4889 System Diagrams LMH B LMH A S1 S2 LMH B LMH A S1 S2 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 3 Way 6 x VTX V 25 System Diagrams LMH B LMH A S1 S2 LMH B LMH A S1 S2 1...

Страница 23: ...LMH S1 S2 LMH LMH S1 S2 LMH LMH VTX V25 VTX S28 VTX S28 No Section Load Channel 2 HF 4 ohm CH 4 2 MF 4 ohm CH 3 2 x 2 LF 4 ohm CH 2 CH 1 2 S1 4 ohm CH 1 2 S2 4 ohm CH 2 No Section Load Channels 3 LMH...

Страница 24: ...of the card This number is required to process the charge to your account If you do not want to provide it at this time we will call you to obtain this number when the repair of your unit is complete...

Страница 25: ......

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