amplifiers - line amplifiers
PA2120 / 2240 / 2360 / 2480 - 120/240/360/480 W 100V Line Power Amplifiers
Introduction
PA2000 series of 100V line power amplifiers had been the workhorse of many installations and are available in power ratings of 120 to 480W 70 / 100V line output. Various features had been added throughout the years since its inception and these had enhanced their performance and reliability.
Amperes AS4000 / AX700 can be used alongside with PA series to form an automatic amplifier fault changeover setup or to be much simpler, Amperes AX3700 is recommended to serve the purpose.
Features
- Available in various ratings; 120W to 480W 70/100V line
- 4 Ohm speaker connection available with 25V output
- Thermal protection by muting input signal ( typically 85 deg at heat sink )
- Momentary short circuit protection
- Temperature dependent dual speed cooling system
- Manual reset circuit breaker for AC mains and DC input
- Balanced input signal with gain control and selectable grounding option
- AC and DC operation for uninterrupted operation during power failure
Technical Specifications
| PA2120 | PA2240 | PA2360 | PA2480 |
|
Rating |
120W | 240W | 360W | 480W |
Operating voltage |
230 - 240V ac / 24V DC backup | |||
24V DC requirement |
8A | 19A | 23A | 29A |
Load consumption at ac mains |
1.4A | 3A | 3.4A | 4.5A |
Standby consumption at ac mains |
0.4A | |||
Input sensitivity |
1V / 10 K Ohm | |||
Input gain control |
-15 dB to 0 dB | |||
Input connection |
XLR balanced line input | |||
Output voltage ( 4 Ohm ) V rms |
22 | 31 | 38 | 44 |
Output impedance ( 70 V line ) |
42 | 21 | 13 | 10.2 |
( 100V line ) |
83 | 42 | 27.8 | 20.8 |
Frequency response |
180 - 17 KHz (+/- 3dB at 1 KHz) with low cut | |||
S/N ratio |
> 60 dB | |||
Protections |
Thermal, momentary output short circuit, | |||
| AC and DC circuit breaker, input signal clip | ||||
Indicators |
AC mains, Clip, Protect, Input level | |||
Cooling system |
Dual speed fan with heat sensing | |||
Dimensions ( WxHxD ) mm |
PA2120 : 482 x 88 x 300 mm | |||
| PA2240 / 2360 / 2480 : 482 x 133 x 300 mm | ||||
Weight ( kg ) |
11.0 | 20.5 | 21.2 | 25.1 |
Front view of PA2120
rear view ( PA2240 / 2360 / 2480 )
