Crown VRack VRACKHD4FX is a complete, high-performance amplifier solution designed for professional touring and large-scale live sound applications. It features three preinstalled Crown I-Tech 4x3500HD DriveCore Series amplifiers housed in a rugged, shock-mounted touring rack with built-in casters, removable side doors, and a dolly board for convenient transportation.

Each Crown I-Tech 4x3500HD amplifier provides four independent channels, delivering up to 4,000W per channel at 4 ohms and 2,100W at 8 ohms. Crown's DriveCore technology enhances power efficiency, while integrated OMNIDRIVEHD digital signal processing provides LevelMax limiters, FIR filters, and advanced power management.

The Crown VRack 4x3500HD offers comprehensive connectivity through CobraNet, AES3, VDrive, analog XLR, and network inputs. Its built-in AES and network failover capabilities help maintain signal distribution, while HiQnet control enables monitoring and adjustment through compatible software, including System Architect and JBL Performance Manager.

Key Features

• Includes three Crown I-Tech VRACKHD4FX amplifiers in a rugged touring rack.
• Delivers up to 4,000W per channel at 4 ohms.
• Supports CobraNet, AES3, VDrive, and analog XLR inputs.
• Features six NL4 and three NL8 Speakon speaker outputs.

Ideal For

• Professional touring sound systems.
• Large-scale concerts and live music events.
• Arenas, stadiums, and outdoor festivals.
• JBL VerTec and VTX loudspeaker systems.
• STX subwoofer configurations.
• Professional audio rental and production companies.
• Touring engineers requiring advanced DSP and system control.
• Large venues requiring high-output sound reinforcement.

What's in the Box

• Crown Audio VRack Amplification System Rack on Wheels with Three I-Tech 4X35000HD Amplifiers

Inputs & Outputs

• CobraNet network audio inputs.
• AES3 digital audio inputs.
• VDrive digital audio connectivity.
• Analog XLR audio inputs.
• Ethernet connectivity for network control and audio distribution.
• Six NL4 Speakon speaker output connectors.
• Three NL8 Speakon speaker output connectors.
• 5-pin CEE-Form and 5-pin Hubbell Twist-Lock power connectors.

Frequently Asked Questions

How many amplifiers are included in the Crown VRack 4x3500HD?

It includes three preinstalled Crown I-Tech 4x3500HD DriveCore Series amplifiers.

How much power does each amplifier deliver?

Each channel delivers up to 4,000W at 4 ohms and 2,100W at 8 ohms.

Which audio inputs does the VRack 4x3500HD support?

It supports CobraNet, AES3, VDrive, analog XLR, and network audio connectivity.

Which loudspeaker systems is it compatible with?

It is designed for compatible JBL VerTec and VTX Series loudspeakers and STX subwoofers.

Full Technical Specifications

Audio Performance

Brand	Crown
Model	VRACKHD4FX
Product Type	Professional Amplifier Rack System
Amplifiers Included	3 × Crown I-Tech 4x3500HD
Total Amplifier Channels	12
Channels per Amplifier	4
Output Power at 2 Ohms	3,500W per channel
Output Power at 2.7 Ohms	3,800W per channel
Output Power at 4 Ohms	4,000W per channel
Output Power at 8 Ohms	2,100W per channel
DSP	Crown OMNIDRIVEHD
Signal Processing	LevelMax limiters and FIR filters
Amplifier Technology	DriveCore
Audio Inputs	AES3, VDrive, Analog, CobraNet, Network
Speaker Outputs	6 × NL4 and 3 × NL8 Speakon
Network Failover	Built-in AES and network failover

Connectors

NL4 Speakon	6
NL8 Speakon	3
5-pin CEE-Form	1 type
5-pin Hubbell Twist-Lock	1 type
NL4 Speakon	6
NL8 Speakon	3

Power & Operation

Amplifiers	3 × Crown I-Tech 4x3500HD
Total Amplifier Channels	12
Output Power at 2 Ohms	3,500W per channel
Output Power at 2.7 Ohms	3,800W per channel
Output Power at 4 Ohms	4,000W per channel
Output Power at 8 Ohms	2,100W per channel
Amplifier Technology	DriveCore
Digital Signal Processing	OMNIDRIVEHD
Signal Processing Features	LevelMax limiters and FIR filters
Power Factor Correction	Yes
US Power Configuration	120V or 208V AC
International Power Configuration	220–240V AC

Dimensions & Weight

Dimensions:	(L × W × H): 22.5"× 23.5"" × 31.25"
Weight	184 lbs