MDA2-9000DP

2-Сhannel DSP Power Amplifier

Loudspeakers
—  DA VINCI —  DALI —  PICASSO —  RUBENS
Electronics
MDA2-9000DP 2-Сhannel DSP Power Amplifier

MDA2-9000DP

2-Сhannel DSP Power Amplifier

Title: MDA2-9000DP
Code: 00-58573
H×W×D (mm): 88 × 482 × 395
Weight (kg): 10

The entire amplification and processing part of the MASTERS amplifiers was developed by a design team led by Michele Marani and is manufactured at MARANI production facilities.

The DSP and power units used in MASTERS products have significant differences in technical capabilities and software solutions from serial MARANI products. Presets for the MASTERS speaker systems cannot be used for standard MARANI power amplifier and processor models, as they contain a number of unique settings that require special MASTERS plug-ins.

The MDA2-9000DP is a high-performance power amplifier with a built-in digital processor. It has a total output power of 2x3000 W (@ 8 Ohm) / 2x4000 W (@ 4 Ohm) / 2x4500 W (@ 2 Ohm). The 4.3 inch high-definition touch screen clearly displays the system status, and the sufficient power is equipped with a powerful built-in DSP with 2 input and 2 output processing channels to enable this power amplifier to work both in installed and portable sound reinforcement systems.

DSP and AD/DA converters both operate at 96 kHz sampling rate. A full set of processing functions provides a comprehensive solution for speaker systems. The automatic switching function with 3 priority levels enables to back up the input signal sources. The input section offers the following blocks: gain, delay, noise gate, EQ, compressor and FIR, the output section — gain, delay, polarity, X-over, FIR, EQ, RMS compressor and peak limiter. The PEQ has up to 17 filter types to choose from. The output crossover filters include classic Linkwitz-Riley, Bessel, Butterworth filters, the MARANI brand unique NXF (Notched X-over Filter), FIR filter, and newly added MIR linear phase filter which can make the phase of the crossover point easier to join while maintaining a very low delay.

Power & Amplifier Section
8 Ω Power  2x3000 W
4 Ω Power  2x4000 W
2 Ω Power  2x4500 W
Minimum Load 2 Ω
Input Impedance 20 KΩ
AD/DA Dynamic Range 118 dB
Maximum Input Level  +18 dBu
DSP Maximum Output Level +16 dBu
Total Harmonic Distortion 0.05% @ 1 W, 4 Ω
Frequency Response 20 Hz – 20 kHz, ±0.3 dB
Crosstalk −85 dB
Signal-To-Noise-Ratio >104 dB (A Weighting)
Analog Input 2х Electronically Balanced XLR
AES Input 1х Electronically Balanced XLR
Dante Input 2x (Optional)
Network Control  RJ45

DSP & Processing

Signal Generator 
White Noise/Pink Noise −40 dBu – 0 dBu

Input & Output Gain
Range −12 – +12 dB, 0.1 dB Step

Gate
Threshold Range: −85 dBu – −50 dBu
Attack time 1 ms – 1000 ms
Release Time 1 ms – 1000 ms

Dynamic Loudness Filter 
Lo-Boost: 0 – 100%
Hi-Boost: 0 – 100%

Parametric Equalizer (PEQ)
Band Quantity 12 for Each Input, 8 for Each Output
PEQ Filter Type Bell, 1st/2nd Order Lo-Shelving, 1st/2nd Order Hi-Shelving, Variable Q Lo/Hi-Shelving, 1st/2nd Order LPF, 1st/2nd Order HPF, Variable Q LPF/HPF,-Band-Pass Filter, Notch Filter, 1st/2nd Order All-Pass Filter.
Centre Frequency 20 Hz – 20 kHz, 1 Hz Step
Q Value Range of Bell Filter 0.4 – 128, 0.01 Step
Q Value Range of LPF/HPF and Lo/Hi-Shelving Filters 0.1 – 5.1, 0.01 Step
Q Value Range of Band-Pass and Notch Filters 4 – 104, 1 Step
EQ Gain −15 – +15 dB

IIR Crossover Filter
Butterworth Slope 06/12/18/24/36/48 dB per Octave
Bessel Slope 12/24 dB per Octave
Linkwitz-Riley Slope 12/24/36/48 dB per Octave
NXF (Notched X-over Filter) Slope 40/45/50/55/60/65/70/75 dB per Octave

MIR Linear Phase Crossover Filter
Butterworth Slope 06/12/18/24/36/48 dB per Octave
Bessel Slope 12/24 dB per Octave
Linkwitz-Riley Slope 12/24/36/48 dB per Octave
NXF (Notched X-over Filter) Slope 40/45/50/55/60/65/70/75 dB per Octave

FIR Crossover Filter
Filter Type High-Pass/Low-Pass/Band-Pass/External Import
Taps Range 256 – 512
Slope Range 21 – 120 dB per Octave
Time Window Type Rect/Sinc/Keiser/Hanning/Hamming/Blackman/Blackman-Harris/Blackman-Nuttal/Nuttal/Keiser-Bessel/Sine

Input/Output RMS Compressor
Threshold Range (Input) −17 dBu – +13 dBu
Threshold Range (Output) +18 dBu – +46 dBu
Ratio Range 2 – 32:1
Knee Point: 0 – 100%
Attack Time 0,1 ms – 1000 ms
Release Time 100 ms – 15,000 ms
Gain Compensation 0 – +12 dB

Peak Limiter
Threshold Range: +18 dBu – +46 dBu
Attack Time 1 ms – 1000 ms
Release Time 100 ms – 5000 ms

Delay
Input Channels 301 ms, 10,4 µs Step
Output Channels 151 ms, 10,4 µs Step

FIR Filter
Input/Output Channels Import of FIR Filter with 512 Taps

General
Preset Quantity 50
Dimensions 482x88x392 mm, 2 RU
Net/Shipping Weight 9.5 Kg / 12 Kg
  • 2x3000 W (@ 8 Ohm) / 2x4000 W (@ 4 Ohm) / 2x4500 W (@ 2 Ohm) output power, independent power supply for each channel, 2 channels can output maximum power at the same time regardless of whether they are connected to full-range or sub-low speakers.
  • The built-in MARANI DSP runs at 96 kHz sampling rate. The brand-new circuit design of MDA2-9000DP has such advantages as soft sound, powerful self-protection function, low noise and high efficiency.
  • Automatic source priority switching function. The device is equipped with 2 analog input interfaces, 2 independent AES digital input interfaces and 2 Dante network interfaces (optional). Each input channel can be set to 3 priority levels to effectively ensure the reliability of system signal transmission during major events.
  • A "zero attack time" hard limiter to better protect the speaker unit.
  • AEQ (Auto Equalization Tool) that supports automatic measurement and generation of FIR coefficients, as well as the import of FIR coefficients generated by a third-party software.
  • A new MIR linear phase filter is added to the output crossover filter, which can avoid the phase distortion caused by the traditional IIR filter.
  • The built-in dynamic loudness filter, the working principle is to self-adaptively boost the ultra-low and ultra-high frequency bands according to the equal loudness curve of the human ear, and the boost ratio is determined by the magnitude of the signal amplitude, which significantly improves the overall hearing of the small and medium-sized speaker system.
  • The network control port is independent of the dual Dante network port, and the control network system and the audio network system are structurally separated. Thus, the system structure is simpler and clearer and the error rate of the network part is lower. Even if the control network fails, it will not affect the Dante audio network connection. With simple and intuitive management software, the success rate of one-time connection is extremely high.