Product Specifications
Line Inputs
Frequency Response:  20 Hz to 20 kHz, ±1 dB
Input impedance:  47 kohms
Headroom:  16 dB
Noise:  <-85 dB (22 kHz bandwidth)
Speaker Output
Output Power (1 kHz continuous sine wave)
VA2120:  2 x 120 watts
VA4120:  4 x 120 watts
Minimum load
Low-Z output:  4 ohms
High-Z output:
25 V-line 5.2 ohms
70 V-line 41 ohms
100 V-line 83 ohms
Frequency response:
Low-Z output:  20 Hz to 20 kHz, ±1 dB
High-Z output:  20 Hz to 20 kHz, ±1 dB (hi-pass filter off)
THD + N:  < 0.05% @ 1 kHz
Protection:  Fixed level signal limiter: DC, over-current and over-temperature protection
General
Power input: Selectable 115 VAC or 230 VAC, ±10%; 45 – 65 Hz
Normal operating temperature:  0 °C to 35 °C (Note: performance and specifications cannot be guaranteed outside of this range)
Cooling
Forced air cooling: 1 x 80 mm dia. fan (VA2120); 2 x 80 mm dia. fans (VA4120).
Airflow direction: front-to-back