Installation Guide

VA Series Installation Guide V1.110
Technical Specications
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 lter 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
Fuse details 5 x 20 mm, time delay
230 V models 4 A
115 V models 8 A
Normal operating temperature
0 °C to 35 °C (Note: performance and specications 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).
Airow direction: front-to-back
Power Consumption
Idle
1
VA2120 14 W (20.8 VA)
VA4120 27.5 W (39.8 VA)
1/8
th
Power
2
VA2120 206 W (260 VA)
VA4120 418 W (525 VA)
1/3
rd
Power
3
VA2120 230 W (280 VA)
VA4120 562 W (685 VA)
Heat Loss
Idle
1
VA2120 50 KJ/hr (47.5 BTU/hr)
VA4120 99 KJ/hr (93.9 BTU/hr)
1/8
th
Power
2
VA2120 630 KJ/hr (598 BTU/hr)
VA4120 1,288 KJ/hr (1,221 BTU/hr)
1/3
rd
Power
3
VA2120 683 KJ/hr (648 BTU/hr)
VA4120 1,591 KJ/hr (1,508 BTU/hr)
Dimensions (W x H x D)
Net
VA2120
482.6 mm x 88 mm (2U) x 310 mm
19” x 3.5” x 12.2”
VA4120
482.6 mm x 88 mm (2U) x 408 mm
19” x 3.5” x 16.1”
Shipping (Gross)
VA2120
570 mm x 170 mm x 430 mm
22.5” x 6.7” x 16.9”
VA4120
580 mm x 170 mm x 545 mm
22.8” x 6.7” x 21.5”
Weights
Net
VA2120 10.9 kg (24.4 lbs)
VA4120 18.2 kg / 40.8 lbs
Shipping (Gross)
VA2120 13 kg (29.1 lbs)
VA4120 20.3 kg / 45.5 lbs
Notes re Power Consumption and Heat Loss measurements:
All measurements at 230 VAC 50 Hz power input
1. Idle: amplier active, but no audio output
2. 1/8th. Power: constant sound level at one-eighth maximum rated output per channel (audio mainly clean, only occasional clipping)
3. 1/3rd. Power: constant sound level at one-third maximum rated output per channel (audio beginning to become compressed, limited or heavily clipped)