Audio Research VT80 Foundation Series Power Amplifier


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Etiketler: Audio Research VT80 Foundation Series Power Amplifier

POWER OUTPUT  
75 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 75 watts, below 0.05% at 1 watt. (Note that actual power output is dependent upon both line voltage and ‘condition’ i. e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)

POWER BANDWIDTH
(-3dB points) 7Hz to 60kHz.

FREQUENCY RESPONSE
(-3dB points at 1 watt) 0.7Hz to 80kHz.

INPUT SENSITIVITY
1.4V RMS BAL for rated output. (25dB Bal gain into 8 ohms.)

INPUT IMPEDANCE
300K ohms Balanced (150K ohms SE)

OUTPUT POLARITY
Non-inverting. Balanced input pin 2+ (IEC-268)

OUTPUT TAPS
8 ohms, 4 ohms

OUTPUT REGULATION 
Approximately 1.0dB 8 OHM LOAD TO OPEN CIRCUIT (Damping factor approximately 8)
OVERALL NEGATIVE FEEDBACK
15dB

SLEW RATE
10 volts/microsecond

RISE TIME
4.0 microseconds 

CHANNEL SEPARATION
112dB

HUM & NOISE
–112dBV no signal, input shorted

SIGNAL TO NOISE
115dB

CONTROLS
Power on/off, auto shut-off on/defeat, Input BAL/SE, RS232, 12V trigger

AMBIENT AIR TEMPERATURE
30° C (86° F) maximum ambient air temperature

POWER SUPPLY ENERGY STORAGE
Approximately 350 joules

POWER REQUIREMENTS
100-125VAC 60Hz (200-250VAC 50Hz) 410 watts at rated output, 500 watts maximum, 230 watts idle. Sleep power < 1 watt

TUBES REQUIRED
2 – Matched pair KT120 – Power Output; 2 – 6H30 Driver

DIMENSION
width    19” (48.3 cm)
height    10.33” (26.2 cm)
depth    18.45” (46.8 cm) to chassis , 19.40” (49.3 cm) to terminals

WEIGHT
45.7lbs. (20.7 kg) Net; 60.5 lbs. (27.4 kg)

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