amperes electronics
Professional Public Address (PA) System Manufacturer
DP2240 / DP2500
Compact Multi Channel Power Amplifier (Class D)
DP2240 (2x240W) and DP2500 (2x500W) is a 2-channel Class D amplifier with wide frequency response, compact 1U design, and built-in protections—ideal for efficient multi-zone PA systems.
High-efficiency Class D with switching power supply
Built-in protection against overload, short circuit, thermal and DC
Lightweight, transformer-less, and 1HU rack-mount design
Works with wide AC input and 24V DC backup
Introduction
DP2240 (2 × 240W) and DP2500 (2 × 500W) are compact, high-efficiency multi-channel Class D power amplifiers with switching power supply for 100V line PA systems. Both models provide wide frequency response for clear voice and music reproduction.
Also comes with built-in protection against overload, short circuit, and thermal issues and DC for long-term reliability. With low heat generation, they also reduce cooling requirements in PA racks. Their slim 1U transformer-less design saves rack space while delivering reliable performance in PA systems.
Packing information
Carton size : 605 (L) x 560 (W) x 125 (H) mm
Gross weight : DP2240: 6.85 kg / DP2500: 7.0 kg
Net weight : DP2240: 5.60 kg / DP2500: 5.80 kg
1 unit per carton for each model
Introduction
DP2240 (2 × 240W) and DP2500 (2 × 500W) are compact, high-efficiency multi-channel Class D power amplifiers with switching power supply for 100V line PA systems. Both models provide wide frequency response for clear voice and music reproduction.
Also comes with built-in protection against overload, short circuit, and thermal issues and DC for long-term reliability. With low heat generation, they also reduce cooling requirements in PA racks. Their slim 1U transformer-less design saves rack space while delivering reliable performance in PA systems.
Packing information
Carton size : 605 (L) x 560 (W) x 125 (H) mm
Gross weight : DP2240: 6.85 kg / DP2500: 7.0 kg
Net weight : DP2240: 5.60 kg / DP2500: 5.80 kg
1 unit per carton for each model
DP2240 / DP2500
Power Requirement / Models
DP2240
DP2500
Power rating
2 x 240W 100V line
2 x 500W 100V line
Operating voltage
220 - 240V AC or 24V DC back up supply
Current consumption (Load)
Load 240V AC: 550 VA (2.3A) Load 24V DC: 22A
Load 240V AC: 1100 VA (4.6A) Load 24V DC: 46A
Current consumption (Standby)
Standby 240V AC: 0.1A Standby 24V DC: 0.3A
Connections
Input (balanced audio)
2 inputs
Input signal (sensitivity)
0.775V rms (0 dBu) / 10k Ohm via Phoenix connectors
Outputs
100V line or 4-16 Ohm
4 Ohm output voltage
38V
Output impedance (max load)
40 Ohm / Channel
20 Ohm / Channel
S/N ratio
>80 dB @ 1 kHz, 1V
THD + Noise
<1% @ 1 kHz ± 3 dB
Frequency response
20 - 20 kHz @ 1 kHz ± 3 dB
Bandpass filter
70 - 10 kHz
Protections
Thermal, short circuit, overload, fuse, DC
Cut off temperature
75°C
Cooling system
Fan-forced cooling
Indications
LED: Protect, input audio, output and power
Physical Specifications
Dimensions (W x H x D)
482 x 44 x 420 mm
482 x 44 x 420 mm
Net weight
5.60 kg
5.80 kg
Note: The specification parameters may be changed, added, or omitted without prior notice. Last updated on 24 Apr 2026.
Available in 2×240W (DP2240), 2×500W (DP2500) and 4×240W (DP4240)
Supports 100V line and 4-16 Ohm outputs
High-efficiency Class D amplifier with switching power supply
Works with wide AC input and 24V DC backup
Protections such as short circuit, overload, thermal, and DC
Individual balanced inputs with separate volume control
Bandpass filter to reduce unwanted bass and high frequencies
Auto sleep mode to save energy when no signal is detected
Wide frequency response from 20 Hz to 20 kHz
Lightweight and transformer-less design for easy installation
1HU rack-mount design to save space
Registered association members of
International recognitions
© 1999 - 2026 Amperes Electronics Sdn Bhd. All Rights Reserved.
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