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