PVA240 front PVA480 front PVA2240 front PVA2480 front PVA4120 front PVA4240 front
PVA240 back PVA480 back PVA2240 back PVA2480 back PVA4120 back PVA4240 back
PVA Series SPECIFICATION CONFIGURATION

This series of amplifiers are designed to work with a 100V line especially for sound systems installed in office blocks, shopping centres, supermarkets, bars, public buildings etc. The main advantage of a 100V system is the reduced thickness of the speaker cables compared to low voltage amplifiers. This is because the higher output voltage allows a much lower current flow for the same power. Another advantage of the high output voltage is the amplifier's ability to cope more easily with voltage-drop when using long speaker cables. On all PVA series amplifiers, the output stage is powered by a low voltage allowing not only use with mains voltage, but also 24VDC (or 18VDC). Voltage switching is automatic and completely silent. The output stage utilises a specially wound transformer to allow full acoustic operation at high frequencies. A modified push-pull configuration is used for the output stage. This has the advantage of working in a similar way to a bridge configuration allowing a decrease of the filtering volume by as much as a half. In contrast to conventional push-pull configurations, our output stage is fully complementary, giving, amongst other advantages, lower distortion, without losing the advantages of a push-pull configuration.

The output stage circuitry is protected with the same devices used in stage-amplifiers. This includes: thermal protection, input and output transformer protection, short circuit and overload protection, return limiter and soft switching (soft start). Thanks to these features, it can be used in far more demanding conditions and gives greater fire and safety protection.

The amplifiers are equipped with priority inputs, switched automatically as soon as additional signals are detected. The PVA series also has test inputs for connection of an ultrasonic remote control to test the efficiency of connections. Balanced inputs allow the use of long cables without the risk of humming or mains distortion.

Subsonic filters protect the speakers which are, in this kind of installation, relatively low quality. This also protects the amplifier from saturation of the output transformer.

The forced-cooling fan constantly adjusts its speed according to the temperature of the heat sink. The result of this is that when the amplifier operates at low volume, the fan works at minimum speed or stops altogether, minimising dust intrusion and increasing the amplifier's life.

FEATURES:
  • Output stage in modified push-pull configuration
  • Emergency 24V power option
  • Test and priority inputs
  • Limiter
  • Subsonic filter
  • Variable speed forced cooling.
PVA Series
Technical Data
Model PVA 240 PVA 480 PVA 2240 PVA 2480 PVA 4120 PVA 4240
Response frequency 32Hz-42kHz 32Hz-30kHz 32Hz-42kHz 32Hz-30kHz 32Hz-42kHz 32Hz-42kHz
Output power RMS
1% THD 240W 480W 2x240W 2x480W 4x120W 4x240W
Distortion (THD) 1kHz,100V OUT
(80% rated power)
< 0,2%
Dynamics > 90dB
Voltage gain 81 (38dB)
Input sensitivity (V RMS) +4dB 1,23V
Input impedance
unbalanced
balanced
10kΩ
20kΩ
Subsonic filter -3dB 32Hz, 24dB/oct
LED indicators Ready, Protect, Signal, Clip
Regulations, Switches
front
back
signal, vol
priority vol, priority 240Hz, priority mode (auto/manual)
Power supply 230V AC, +10/-15%
Idle current draw (230V AC) < 160mA < 170mA < 270mA < 420mA < 550mA
Supply current at 1/8 rated power, pink noise 1,1A 2,1A 2,2A 4,5A 2,2A 4,7A
Supply current at 1/3 rated power, pink noise 1,6A 3,1A 3,2A 6,3A 3,2A 6,5A
Filter storage 20000µF 40000µF 40000µF 80000µF 40000µF 80000µF
Max output voltage 120-130V
Max power dissipation 600W 1200W 1200W 2400W 1200W 2400W
Socket
input
output
signal in, priority in
priority, control
Slew rate 25V/µs 20V/µs 25V/µs 20V/µs 25V/µs 25V/µs
Dimensions (WxHxD) 482x88x340 mm 482x88x430 mm
Weight 12kg 16kg 16,5kg 25kg 21kg 28kg
Possible configuration
PVA 240 1x43,8V 240W / 8Ω
1x70V 240W / 20,4Ω
1x100V 240W / 41,7Ω
PVA 480 1x62V 480W / 8Ω
1x70V 480W / 10,2Ω
1x100V 480W / 20,8Ω
PVA 2240 2x43,8V 240W / 8Ω
2x70V 240W / 10,2Ω
2x100V 240W / 20,8Ω
PVA 2480 2x62V 480W / 8Ω
2x70V 480W / 10,2Ω
2x100V 480W / 20,8Ω
PVA 4120 4x31V 120W / 8Ω
4x70V 120W / 10,2Ω
4x100V 120W / 20,8Ω
PVA 4240 4x43,8V 240W / 8Ω
4x70V 240W / 10,2Ω
4x100V 240W / 20,8Ω
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