Description The VRack Amplification System Rack  from Crown Audio  is comprised of a rugged touring rack fitted with three IT4X35000HD 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 network connections as well as AES/EBU and analog XLR connections. The front-mounted power panel includes a 5-pin Hubbell Twist-Lock connector and a 5-pin CEE-Form connector.
Crown Audio VRACKHD4FX Specs
Key Specs
Number of Channels 12
Amplifier Power Rating 115 VAC, 2 Ohms: 3x 3500 W
Load Impedance / Voltage Stereo: 2 / 4 / 8 / 16 OhmsBridged: 2 / 4 / 8 OhmsBridged/Stereo: 70 / 100 V
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DSP 32-Bit Floating Point DSP
Analog Audio I/O 2x XLR 3-Pin Female Balanced Input 2x XLR 3-Pin Male Balanced Output
Digital I/O 2x XLR AES3 Input 2x XLR AES3 Output 2x etherCON CobraNet Input/Output
Amplifier
Number of Channels 12
Amplifier Power Rating 115 VAC, 2 Ohms: 3x 3500 W
Load Impedance / Voltage Stereo: 2 / 4 / 8 / 16 OhmsBridged: 2 / 4 / 8 OhmsBridged/Stereo: 70 / 100 V
Performance
Frequency Response 20 Hz to 20 kHz
Damping Factor > 5000
Input Sensitivity 1.28 V to 8 V
Input Impedance 20 Kilohms (Balanced) 10 Kilohms (Unbalanced)
Max Gain 222 dB (at 8 Ohms)
Max Input Level +21 dBu
SNR > -108 dB
THD < 0.35% (at Rated Power)
Intermodulation Distortion < 0.06%
Crosstalk > 80 dB (20 Hz to 1 kHz, Below Rated Power)
Common Mode Rejection Ratio (CMRR) > 55 dB
Signal Processing
Sample Rate Up to 96 kHz
AD/DA Conversion A/D: 24-BitD/A: 24-Bit
DSP 32-Bit Floating Point DSP
Latency At 96 kHz: 1.1 ms
Crossover Yes
Limiting Yes
Connectivity
Analog Audio I/O 2x XLR 3-Pin Female Balanced Input 2x XLR 3-Pin Male Balanced Output
Digital I/O 2x XLR AES3 Input 2x XLR AES3 Output 2x etherCON CobraNet Input/Output
Power
AC Input Power 120 to 208 VAC, 50 / 60 Hz
AC Power Connector 1x Hubbell (Locking)
Physical
Dimensions 23.5 x 31.3 x 22.5″ / 59.7 x 79.4 x 57.2 cm
Weight 187 lb / 84.8 kg
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