MDA3-700M is highly flexible and intelligent digital audio 3 Channels Class D power amplifier delivering up to a total of 2.1kW@4/8Ω or able to rive 70v/100v Constant Voltage Lines, in Direct Drive, without using internal transformers. To guarantee maximum reliability, for the 3 powered channels, the MDA3-700M includes one MARAN I SMPS and 3 highly efficient Class D Power Stages, each one working in BTL (Bridge Mode). The 3 output stages are very low noise and low distortion with efficiency up to 90% @ full load and also equipped with a full set of circuit protections. Designed to meet the most demanding residential application sound systems, it provides a basic set of features such as a matrix mixing mode where inputs may be routed/mixed in any ratio to any output.

The MDA3-700M includes a set of sophisticated processes for loudspeaker, implemented by the powerful MARANI® DSP running 48kHz/24bit [96 bits precision for the internal intermediate processes] and high performance 24bit AD/DA Converters. Processes as Noise Gate, dB/Oct IIR Hp/Lp filters for X-Over, parametric EQs per input and output sections, RMS compressor, alignment delay and Notch, Variable Q Hi/Lo Shelving and Hi/Lo Pass filters are available, all in all everything needed to optimize powered loudspeaker.

Moreover, a Overflow/Limiter function per channel provides internal processes monitoring to prevent Overflow Clipping to occur, in order to avoid feeding Class D amps with clipped waves and finally, jointly with a powerful embedded Clip Limiter, to avoid speaker damage with gain reduction at clip threshold. In addition, efficient heat dissipation system and Over-Heat protection are implemented, which themselves ensure reliability without compromises.

Furthermore the MDA3-700M is also equipped with a Dynamic Loudness function and an useful Pink/White noise generator. All setup parameters for input/output processes, DSP features are accessible by using the remote PC software.

Outstanding Performance	High power output: 3 x1000W @ 4Ohm, 3x650W@8ohm or 70v/100v Direct Drive. 1 x Switched-Mode Power Supply  + 3 x Class D output stages with Efficiency up to 90% @ full load Full protection circuitry including Over-Current, Over/Under-Voltage, Output DC and Over-Temperature One more processed output for use in driving additional power amplifiers Excellent sonic performance with 24bit high end converters running as 48kHz sample rate, 2+1 ( L/ R + SUB) outputs with full matrix mixing and extended Sound Processes set
Top-grade DSP Engine	12 bands PEQ filters per input channel 5 bands PEQ filters per output channel Each band can be selected as Bell, Lo/Hi-shelving, HP/LP and Notch Filter Crossover filters with slopes from 6dB/Octave up to 24dB/Octave including Butterworth, Bessel, Linkwitz- Riley. Gain Control, Noise Gate, RMS Compressor  Adjustable Delay time up to 961 ms per input channel and 541ms per output channel.
Direct PC/Network Connection & Control	Front Panel USB Ethernet interface for system setup, monitoring and control via manageable remote PC software Simultaneous control up to 32 units via PC software 16 Preset Selection

Power & Amplifier section

Number of Channels	3 Powered output: L/R/S
Max Output Power @ 8 ohms	3 x1000W @ 4Ohm, 3x650W@8ohm, or 70V/100V Direct Drive
Output Circuitry	Class D Amplifier Module, supplied by independent SMPS
THD @ Rated Power 4ohm (1kHz)	0.02%(1W), 0.05%(60W), 0.08%(100W)
Dynamic Range	118dB (A-weighted, AES-17 filter)
Frequency Response	20Hz - 35kHz, ±3 dB (1W 4ohm – 8ohm Load)
Power Supply	1 Independent Linear Power Supplies
Consumption/Current draw and Thermal dissipation @230V	9.6 W / 0.18 A / 2.8 BTU/h (Standby) 1083 W / 7.94 A / 317 BTU/h (I/8 max. power@8ohm)
Protections	Over-Current, Over/Under Voltage, Output DC and Over-Temperature
Analog Input	4 x RCA A/B Unbalanced, Max Input=12dBu
Digital Input	1 x Stereo Coaxial 1 x Stereo Optical

DSP & Processing

DSP Engine	1 x MARANI M704
DSP Resolution	24 bit (data) x 24 bit (coeff.), 54 bit accumulation registers 96 bit precision on intermediate processing data
Input Type Selection	Analog Inputs, Digital Inputs, Pink/White Noise Inputs [Level: -40dBV to 0dBV]
Noise Gate	Threshold from -90dBV up to -60dBV, 5dBV Steps Attack time from 1ms up to 1000ms; Release time from 10ms up to 1000ms
Input 12-band PEQ  Output 5-band PEQ	Bell, Q from 0.4 up to 128, Gain +/-15dB, Center Freq from 20 to 20kHz Variable Q Hi/Lo Shelving, Q from 0.1 up to 5.1, Gain +/-15dB, Center Freq from 20 to 20kHz Variable Q Hi/Lo Pass, Q from 0.1 up to 5.1, Cutting Freq from 20 to 20kHz Notch, Q from 4 up to 104, Center Freq from 20 to 20kHz
Input RMS Compressor	Threshold from -18dBV up to 12dBV; Make Up from 0 to +12dB Knee 0~100%; Ratio from 2:1 to 32:1； Release time from 100ms up to 3s (100ms resolution); Attack time from 5ms up to 200ms
Output HPF/LPF section	Butterworth 6/12/18/24dB per octave Bessel, Linkwitz-Riley 12/24dB per octave, Filter frequency resolution 1Hz
Output Peak Limiter	Threshold: -18dBV ~ +12dBV, Attack time: 1ms ~ 900ms, Release time: 100ms ~ 5sec
Delay	Each input channel’s selectable delay is up to 961ms, each output channel’s up to 541ms
Load per Output Channel	4 - 8 Ohm/70v 16 Ohm/100v

General

Front Panel	1 x rotary encoder, to load or select presets 1 x Type B USB 1 x Standby button 1 x 2*16 LCD screen 1 x Power Switch 3 x Green-Red LED, indicating distortion and signal for each channel: red indicates distortion and clip , while green signal
Rear Panel	8 x RCA Connectors (Analog Input & Output) 2 x S/PDIF (Digital Input & Output) 2 x Optical connector (Digital Input & Output) 6 x Binding Post (Amplifier Output) 1 x 110V/220V Voltage Switch 1 x Ethernet RJ45 Connector (Control) 1 x 4pin Phoenix Connector, 7.62mm spacing (Amplifier Output) 1 x Locking PowerCON® 20A: AC Power Cord (Blue)
Dimensions	482 x 360 x 88 mm
Package size	550x550x140mm
Weight, Net / Shipping	9.2 kg/ 12.0 kg