M
W
V
V
V
V
D
W
P
A
C
C
C
B
B
B
S
V
*
P
C
C
B
B
VX Manual 1.2
5 Technical Specifications
Classification: Switched-mode power supply power amp with limiters
All level indications refer to 0 dBV (1 V RMS).
Inputs
A, B Input
Sockets: XLR (1 = ground; 2 = +; 3 = --) and stereo 1/4" (tip = +; ring = --; sleeve = ground)
Type: Parallel electronically balanced 1/4" and XLR jacks
Input impedance: 20 kOhms balanced, 10 kOhms unbalanced (VX 800: 22 kOhms balanced, 12 kOhms unba-
lanced)
Outputs
Channel A, B
Speakon
®
NL4 jacks and binding posts
Pin assignments: binding posts red = +; black = -- / Speakon
®
: 1+ = +; 1-- = -- ; 2+ and 2-- unconnected
Biamp/Bridge
Both power amp outputs routed to one Speakon
®
NL4 socket
Pin assignments: 1+ = Channel A+; 1-- = Channel A--; / 2+ = Channel B+; 2-- = Channel B-
A special Speakon
®
cable must be used in bridge mode! Pin assignments for the bridge cable: 1+ amp = 1+
speaker; 2+ amp= 1-speaker, the other two contacts must remain open or unconnected!
General
Controls: Master Power Switch, Input Sensitivity Knob, Operating Mode Switch, Internal Limiters, Ground-Lift.
Displays: On, Protect, Signal And Clipping LEDs.
Protective Circuits: Full DC fault, thermal and short-circuit protection
Cooling: Aluminum cooling element in ventilation channel, servo-controlled ventilator (air flow from front to
back)
Electrical Specifications
Frequency response: 20 Hz to 20000 Hz (±1 dB)
Crosstalk
-75 dB at peak level and 1 kHz (except VX 800: -80 dB)
-60 dB at peak level and 20–20000 Hz (except VX 800: -75 dB)
Signal to noise ratio: -103 dB at peak level (except VX800: -101 dB)
Damping factor: >600, 20–400 Hz with an 8-Ohm load
Rise time: 25 V/ms, 50 V/ms in Bridge Mode (except VX800: 20 V/ms / 40 V/ms)
CMRR @60 Hz: minimum of 48 dB, typically 56 dB (except VX 800: 54 dB/ 66 dB)
Power consumption
VX 800/1200: 1440 watts (IEC 60 065)
VX 2400/2402: 1800 watts (IEC 60 065)
VX_BDA_1_2a 21.08.2003 10:41 Uhr Seite 8 (Schwarz Bogen)
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