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SPECIFICATIONS
X1 X2 X3 X4
Output Power EIA:
1kHz @ 1% THD, Wrms
Both Channels Driven 8Ω 85 140 200 200
Both Channels Driven 4Ω 110 200 300 300
Mono Bridge 8Ω 220 400 600 600
Dynamic Headroom, dB:
At8Ω 1.4 1.5 1.6 1.6
At4Ω 1.9 2.0 2.2 2.2
Frequency Response ....................................................... 30 Hz - 50 kHz
Total Harmonic Distortion ......... Iess than 0.05%, typical 0.02% at 1 kHz
Signal to Noise ratio .......................... 100 dB below rated power @ 8Ω
Damping factor.................................................... greater than 200 @ 8Ω
Slew rate ..................................................................................... 20 V/µS
Voltage gain, dB 28 30 32 32
Input Sensitivity (for rated power at 8 Ω) .................................... 1 Vrms
Input Impedance Unbalanced .......................................................... 10 kΩ
Input Impedance Balanced ..............................................................20 kΩ
Power consumption, W 500 800 1200 1200
(at rated power at 4Ω,
both channels driven)
AC Power Requirements ...... 110-120 V / 60 Hz and 220-240 V / 50 Hz
Indicators ............................................................................. 1 Power LED
1 Protect LED
1 Signal LED per Channel (for X1, X2, X3)
1VU-meter per Channel (for X4)
Cooling ......................................................Fan, Front-to-Rear Forced Air
Protection ........................................... Short Circuit, DC, Thermal Cut-off,
Sub/Ultrasonic Frequency Filters,
Turn-on Delay, Main Fuse, Secondary DC Fuses
Connectors:
Balanced/ Unbalanced lnputs.................................................... 1/4" Jack
Speaker Outputs ..................................................... 5-way Binding Posts
Dimensions:
X1, X2, X3 ........................19"W x 10.75"D x 3.5"H (483 x 273 x 89 mm)
X4 .................................19"W x 10.75"D x 5.25"H (483 x 273 x 133 mm)
Weight 16.3 Ibs 17.8 Ibs 20.2 Ibs 21.6 Ibs
7.4 kg 8.1 kg 9.2 kg 9.8 kg
*Specifications and design are subject to change without notice for
purpose of improvement