Guangzhou DSPPA Audio Co., Ltd.
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Contact
Email: export@dsppa.com
Tel: 020-28346138
Fax: 020-81305947

DMA2500 Two-Channel Digital Mixer Amplifier

Features

● Features tactile mechanical control knobs, push buttons, and a heavy-duty rocker-type power switch.
● Two-channel amplifier where each channel can be independently DIP-switch configured for 100V/70V constant-voltage or 8Ω/4Ω constant-impedance outputs at full rated power.
● Six balanced input channels with individual volume control knobs and separate DIP switches for 48V phantom power on each channel.
● One set of RCA AUX2 inputs split into CH1 and CH2, featuring independent volume adjustments.
● One 3.5mm stereo input connector with dedicated, independent volume control for CH1 and CH2.
● Two RCA AMP IN1-2 power amplifier inputs, normalled to PRE OUT1-2 outputs by default.
● Two RCA PRE OUT1-2 preamplifier outputs controlled by CH1/CH2 volume; restricted to 1V output in 100V constant-voltage mode.
● 3.5mm stereo input and MIC1 can be configured as priority inputs, mixed together in any operating mode.
● Two RCA AUX2 OUT1-2 pass-through outputs for audio sources, bypassing CH1/CH2 volume and master level controls.
● Dedicated RJ45 port supporting up to six DMA30W remote touch control panels for adjusting CH1/CH2 volume, zone status, and EFFECT on/off.
● Customizable reverb depth and time with 3 presets and 1 user mode (L/M/S/OFF room sizes); MIC5-6 and OUTSIDE/ROOM zones can independently toggle EFFECT.
● Individual 3-band EQ controls for MIC1-6 inputs: LOW (80Hz ±12dB), MID (2.5kHz ±12dB), and HIGH (10kHz ±12dB).
● DIP-switch enabled standby mode automatically triggers after 10 minutes of audio inactivity (flashing SLEEP indicator) and wakes upon signal detection.
● Connects one DMA30N Remote Bus Network Decoding Terminal via RJ45 (providing audio, data, and power) for network decoding, offline scheduled playback, EMC dry contacts, and network AUX OUT.

  • Introduction
  • Specification

This Two-Channel Digital Mixer Amplifier is specifically tuned for mosque sound reinforcement while serving as a versatile solution for gyms, meeting rooms, retail stores, and standard PA systems. When paired with the DMA30N Remote Bus Network Decoding Terminal, it utilizes a single RJ45 audio-and-data bus shared with the DMA30W Remote Control Panel, enabling streamlined installation and centralized remote control.


Model

DMA2240

DMA2500

Input Sensitivity

AUX1

250±25mV


AUX2

250±25mV


MIC1-6 Max. Input Sensitivity

5±1mV (potentiometer fully clockwise)


MIC1-6 Min. Input Sensitivity

250±25mV (potentiometer fully clockwise)

AUX Frequency Response

80–16kHz (±3dB)

MIC Frequency Response

100–10kHz (±3dB)

Signal-to-Noise Ratio

≥76dB (all volumes at max)

Noise

≤8.5mV (all volumes at max)

Total Harmonic Distortion

≤1%

Line Output (CH1-2)

BUS OUT

1±0.1mV


REC OUT

1±0.1mV


PRE OUT

1±0.1mV (100V constant-voltage mode)

Overall Power Consumption

Idle Mode

44W

45W


Energy-Saving Mode

24W

25W


Rated Power Condition

100V

600W

1200W



70V

600W

1200W



600W

1200W



600W

1200W

Power Supply

AC220-240V/50Hz

Output Power

2×240 W

2×500W

Product Dimensions (D×W×H)

483×380×88mm

Package Dimensions (D×W×H)

585×535×155mm

Net Weight

6.3kg

Gross Weight

8.8kg


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  • Tel:+86 020 37166520
  • Email:export@dsppa.com
  • Address:No.1 Xiahe Rd, Jianggao Town, Baiyun District, Guangzhou, Guangdong, China
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