amperes electronics
Professional Public Address (PA) System Manufacturer
PA2000 Series
Conventional Power Amplifier (Class AB)
PA2000 Series are conventional Class AB power amplifiers with 120W (PA2120), 240W (PA2240), 360W (PA2360), 480W (PA2480) and 600W (PA2600) 100V line.
AC/DC operation for backup use during power failure
Temperature-controlled dual-speed cooling fan
Built-in protections against short circuit and thermal
Supports 70V, 100V line, and 4 Ohm speaker outputs
Introduction
PA2000 Series is a long-standing and trusted range of single channel conventional Class AB power amplifiers, known for their reliability and solid performance in public address installations for over a decade. Now expanded with a 600W model (PA2600), the series also includes 120W (PA2120), 240W (PA2240), 360W (PA2360), and 480W (PA2480) models—all operating on a 100V line.
Built with upgraded protection circuitry and and thermal protection, this series ensures greater durability and reliability for long-term operation. Its compact 2U design also helps save valuable rack space, making it a cost-effective solution for professional installations.
Series model variants:
PA2120: 120W 100V line
PA2240: 240W 100V line
PA2360: 360W 100V line
PA2480: 480W 100V line
PA2600: 600W 100V line
Packing information
Carton size : 550 (L) x 465 (W) x 180 (H) mm
Gross weight : PA2120: 13.10 kg / PA2240: 13.85 kg / PA2360: 17.40 kg / PA2480: 19.65 kg / PA2600: 21.30 kg
1 unit per carton for each model
Introduction
PA2000 Series is a long-standing and trusted range of single channel conventional Class AB power amplifiers, known for their reliability and solid performance in public address installations for over a decade. Now expanded with a 600W model (PA2600), the series also includes 120W (PA2120), 240W (PA2240), 360W (PA2360), and 480W (PA2480) models—all operating on a 100V line.
Built with upgraded protection circuitry and and thermal protection, this series ensures greater durability and reliability for long-term operation. Its compact 2U design also helps save valuable rack space, making it a cost-effective solution for professional installations.
Series model variants:
PA2120: 120W 100V line
PA2240: 240W 100V line
PA2360: 360W 100V line
PA2480: 480W 100V line
PA2600: 600W 100V line
Packing information
Carton size : 550 (L) x 465 (W) x 180 (H) mm
Gross weight : PA2120: 13.10 kg / PA2240: 13.85 kg / PA2360: 17.40 kg / PA2480: 19.65 kg / PA2600: 21.30 kg
1 unit per carton for each model
PA2000 Series
Power Requirements / Models
PA2120
PA2120
PA2360
PA2480
PA2600
Power rating (rms)
120W 100V line
240W 100V line
360W 100V line
480W 100V line
600W 100V line
Operating voltage
220 - 240V AC or 24V DC back up supply
Power consumption
255VA (0.1A)
497VA (1.9A)
731VA (2.8A)
996VA (3.8A)
1069VA (4.1A)
Current consumption
6.1A
10.6A
16.3A
22.3A
23.1A
Standby current
0.2A
0.2A
0.3A
0.4A
0.4 A
Connections & Protections
Input signal (sensitivity)
1V rms (±4 dBu) / 10k Ohm via Phoenix connectors
Input gain controls
-40 to 40 dBU
Output
70V / 100V line or 4 Ohm
4 Ohm output voltage
22V
31V
38V
43.8V
48V
Output impedance (max load)
83 Ohm
42 Ohm
27 Ohm
20 Ohm
16.6 Ohm
Frequency response
70 - 15 kHz @ 1 kHz +/- 3 dB
S/N ratio
>70 dB @ 1 kHz, 1V
THD + Noise
< 1%
Protections
Thermal, short circuit, overload, fuse, inrush current limiter
Cut off temperature
75°C
Cooling system
Temperature-controlled dual-speed cooling fan
LED indicators
Power, Signals level
Physical Specifications
Dimensions (W x H x D)
482 x 88 x 335 mm
Net weight
11.40 kg
12.35 kg
16.20 kg
17.95 kg
19.60 kg
Note: The specification parameters may be changed, added, or omitted without prior notice. Last updated on 23 Apr 2026.
Available in 120W, 240W, 360W, 480W, 600W (100V line)
Conventional Class AB power amplifier
Supports 70V, 100V line, and 4 Ohm speaker outputs (25V - 48V output range)
AC/DC operation for uninterrupted performance during power failure
Balanced input signal with gain control and selectable grounding
Inrush current limiter to protect power circuits
Protections such as Sshort circuit and thermal (input muting at high temperature, typically 75°C at heat sink)
Temperature-controlled dual-speed cooling fan
Compact 2HU rack-mount design
Registered association members of
International recognitions
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Payment
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Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Perindustrian Pusat Bandar Puchong,
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong
47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094
Amperes Electronics Sdn Bhd
SSM Registration No: 200001006420 (509025-X)
Your Trusted PA System Manufacturer since 1999
Sales Office (Malaysia)
70, Jalan Industri PBP 3,
Taman Industri Pusat Bandar Puchong
47100 Puchong, Selangor, Malaysia.
Tel: +603-5882 7757 / 7758
Production Factory (Malaysia)
2, Jalan Meranti Puchong D25@Meranti Puchong 47120 Puchong, Selangor, Malaysia
Export Sales Office (Singapore)
Amperes Asia Pte Ltd
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094