SPECIFICATIONS
Power Output:
All values are expressed in watts at 1 KHz, with the exception of
frequency response (FTC) 20 Hz - 20 KHz.
Values were measured at sinusoidal line voltage.
All values are rounded to the nearest 25 watts.
Impulse average
Measured as two sine wave cycles at 1 KHz, load of 8:1.
Continuous measurements can require in excess of 15 ampere.
VC 2400
MONO MODE (WATTS)
LOAD AVERAGE OUTPUT IMPULSE AVERAGE PEAK IMPULSE OUTPUT FTC 20 HZ-20 KHZ
8 ohms 900 1250 3000 800
4 ohms 1500 2250 6000 1200
STEREO MODE (WATTS)
LOAD AVERAGE OUTPUT IMPULSE AVERAGE PEAK IMPULSE OUTPUT FTC 20 HZ-20 KHZ
8 ohms 750 1200 3000 650
4 ohms 1200 2175 6000 950
BRIDGED (WATTS)
LOAD AVERAGE OUTPUT IMPULSE AVERAGE PEAK IMPULSE OUTPUT FTC 20 HZ-20 KHZ
16 ohms 1500 2400 6000 1300
8 ohms 2400 4350 12000 1900
HARMONIC DISTORTION (MEASURED AT 1 DB BELOW RATED POWER, BW = 80 KHZ)
LOAD at 1 kHz at 20 kHz - 20 kHz
8 ohms < 0.003 % < 0.04 %
4 ohms < 0.004 % < 0.05 %
CROSS TALK: -75 dB, fully driven at 1 KHz -60 dB, fully driven, 20 Hz - 20 KHz
INPUT IMPEDANCE: 20 KOhm balanced, 10 KOhm unbalanced.
INPUT SENSITIVITY: 1.4 volt RMS sine wave = full power (36 dB amplification)
CONTROLS: GAIN rotary pot, MONO button, subsonic filter switch
DISPLAYS: 2 x CLIP, 2 x ACTIVITY, PROTECT, POWER ON (LEDs)
FREQUENCY RESPONSE: +/-1 dB, 20 Hz to 20 KHz (50 Hz increase when subsonic filter is
switched off).
SIGNAL TO NOISE: -105 dB at maximum output
DIRECT CURRENT COMPENSATION: Lower than 25 millivolts
PROTECTION CIRCUITRY: FULL PROTECTION, DIRECT CURRENT, OVERLOAD and THERMAL
COOLING: Interlocked cooling block with servo-controlled direct-current fan.
SLEW RATE: Power amp 30 V/µs , 60 V/µs in bridged mode.
(Slew rate limited to 18 V/µs by input filter.)
DAMPING: < 500, 20 Hz - 400 Hz at 8 ohms
MAX. OUTPUT AMPERAGE: 100 ampere at 10 milliseconds, effectively 50 ampere.
POWER-UP RATE: < 15 milliwatts/sec., 0.5 watts peak rate (at 1 sec. delay)
EFFICIENCY: Greater than 75% at full power and 4 ohms.
WEIGHT 17.75 kg/39 lbs.
DIMENSIONS: 3.5” x 19” x 15.75” (front panel to post bindings)
POWER SUPPLY: Toroidal transformer and a combination mains/overload switch.
POWER CONSUMPTION: Less than 13.5 ampere under realistic conditions.
VC 1200
MONO MODE (WATTS)
STANDARD CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 325 375 400
4 ohms 575 650 750
2 ohms 825 1050 1350
MIN: 4 OHM CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 425 500 525
4 ohms 750 950 1000
STEREO MODE (WATTS)
STANDARD CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 300 350 400
4 ohms 500 625 750
2 ohms 650 1025 1325
MIN. 4 OHMS CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 400 500 525
4 ohms 625 900 1000
BRIDGED (WATTS)
STANDARD CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 975 1250 1500
4 ohms 1300 2000 2600
MIN. 4 OHMS CONFIGURATION
LOAD AVERAGE OUTPUT 100 Hz SIGNAL 1 KHz SIGNAL
8 ohms 1275 1800 2000
CROSSTALK: -75 dB, fully driven at 1 KHz; -60 dB, fully driven, 20 Hz - 20 KHz
INPUT IMPEDANCE: 30 KOhm balanced, 20 KOhm unbalanced.
INPUT SENSITIVITY: 1.4 volt RMS sine wave = full power (33 dB amplification)
CMRR: (balanced input) Norm 66 dB, min. 54 dB (20 Hz - 20 KHz)
CONTROLS: GAIN rotary pot, MONO/STEREO/BRIDGE, FILTER and LIMITER switches
DISPLAYS: 2 x CLIP, 2 x ACTIVITY, PROTECT, POWER ON (LEDs)
FREQUENCY RESPONSE: +/- 1 dB, 20 Hz to 20 KHz (50 Hz increase
when subsonic filter is switched off).
SIGNAL TO NOISE: -103 dB at maximum output
DIRECT CURRENT COMPENSATION: Lower than 30 millivolts.
PROTECTION CIRCUITRY: FULL PROTECTION, DIRECT CURRENT, OVERLOAD and THERMAL
COOLING: Anodized aluminum, interlocked cooling block with
servo-controlled direct-current fan.
SLEW RATE: Power amp 25 V/µs, 50 V/µs in bridged mode. (Slew rate limited
to 18 V/µs by input filter.)
DAMPING: < 600, 20 Hz - 400 Hz at 8 ohms (more than adequate)
MAX. OUTPUT AMPERAGE: 60 ampere peak, effectively 30 ampere at ohm loads. 60 ampere
peak and 30 ampere for 20 mS peridiocally at 0 volt current when
driving out-of-phase loads.
POWER UP RATE: < 15 milliwatt/sec., 0.5 watts peak rate (at 1 sec. delay)
EFFICIENCY: Greater than 75% at full power and 4 ohms.
WEIGHT 15 kg/33 lbs.
DIMENSIONS: 3.5” x 19” x 15.75” (front panel to post bindings)
POWER SUPPLY: Toroidal transformer.
POWER CONSUMPTION: Less than 1,440 watts.
11
VC MANUAL
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