amperes electronics
DP4240
Class D Compact Multi Channel Amplifier
DP4240 is a 4-channel 240W Class D amplifier with wide frequency response, compact 1U design, and built-in protections—ideal for efficient multi-zone PA systems.
Multi channel class D power amplifiers
Various protection features to ensure long lasting operation
Compact 1U design saves rack space
AC input and 24V DC backup
Introduction
DP4240 is a compact 4 × 240W Class D power amplifier designed for 100V line public address systems. Built in a slim 1U transformer-less chassis, it delivers powerful performance while saving valuable rack space—ideal for multi-zone installations.
Featuring high-efficiency Class D circuitry, DP4240 ensures energy-saving operation with a wide frequency response for clear music and voice reproduction. It also includes built-in protections against overload clipping, short circuits, and thermal overload, making it a reliable and space-efficient solution for modern PA system needs.
Packing information
Carton size : 605 (L) x 560 (W) x 125 (H) mm
Gross weight : 8.4 kg
1 unit(s) per carton
Introduction
DP4240 is a compact 4 × 240W Class D power amplifier designed for 100V line public address systems. Built in a slim 1U transformer-less chassis, it delivers powerful performance while saving valuable rack space—ideal for multi-zone installations.
Featuring high-efficiency Class D circuitry, DP4240 ensures energy-saving operation with a wide frequency response for clear music and voice reproduction. It also includes built-in protections against overload clipping, short circuits, and thermal overload, making it a reliable and space-efficient solution for modern PA system needs.
Packing information
Carton size : 605 (L) x 560 (W) x 125 (H) mm
Gross weight : 8.4 kg
1 unit(s) per carton
DP4240
Power requirements
Power rating (rms)
4 x 240W 100V line
Operating voltage
220 - 240V AC or 24V DC back up supply
Power consumption
1100VA (4.6A)
Current consumption
46A
Standby current
0.3 A
Input, output & protections
Input signal (sensitivity)
0.775 V (0 dBU) / 10k Ohm via phoenix connectors
Input gain controls
-40 to 4 dBU
Outputs
100V line and 4 - 16 Ohm
4 Ohm output voltage
38V
Output impedance (max load)
40 Ohm / Channel
Frequency response
20 - 20 kHz @ 1 kHz +/- 3 dB
S/N ratio
>80 dB @ 1 kHz, 1V
THD + N
<1%, 1 kHz
Protections
Thermal, short circuit, overload, fuse, in-rush current
Cut off temperature
75°C
Cooling system
Fan forced cooling
Indications
LED : Protect, input audio, output and power
Case
Dimensions (W x H x D)
482 x 44 x 420 mm
Weight
6.80 kg
Note: The specification parameters may be changed, added, or omitted without prior notice.
Works with wide AC input and 24V DC backup
Built-in protections: short circuit, overload, thermal, and DC
Individual balanced inputs with separate volume control
Class D switching power for high efficiency
Compact 1U design saves rack space
Bandpass filter reduces unwanted bass and high-pitched sounds
Available in 2×240W, 4×240W, and 2×500W 100V line outputs
Auto sleep mode when no signal detected to save energy
Wide frequency response from 20Hz to 20kHz
Lightweight and transformer-less for easy installation
Registered association members of
International recognitions
© 1999 - 2025 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
Amperes Asia Pte Ltd
Export Sales Office - Singapore
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094
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
Amperes Asia Pte Ltd
Export Sales Office - Singapore
(Co Reg: 201102253E)
1, North Bridge Road, #13-03, High Street Centre, Singapore 179094