Description
MDA2-140PAF(D)/MDA2-140PAF(T) is a highly flexible, powerful and intelligent 2-Channel power amplifier delivering up to a total of 2x140W @ 4ohms, or 1x280W to drive 70V/100V Constant Voltage Line in Direct Drive without using internal transformer. Designed to meet the most demanding portable and fixed installation sound systems, it provides a full set of value added features such as on board DSP, Wifi Connection, and optional extension of Dante , Ethernet and Bluetooth with aptX . MDA2-140PAF includes a highly efficient Switch Mode Power Supply, which provides power to the output stages. The 2 output stages use the Class D module-full bandwith PWM modulator obtaining ultra low distortion, high efficiency and also equipped with a full set of circuit protections. Furthermore the Clip/Limiter function provides output monitoring to prevent speaker damage with gentle gain reduction at clip threshold, in addition to the efficient heat dissipation system and Over-Heat protection which themselves ensure uncompromised reliability. MDA2-140PAF is more than an amplifier, but also a capable and sophisticated loudspeaker processor with its powerful MARANI® DSP running 48 kHz / 24 bit [ 96 bits precision for the internal intermediate processes] and high performance 24bit AD/DA Converters. It offers 2 channels of slope up to 48dB/Oct IIR HP/LP crossover filters, RMS compressor, parametric Eqs , alignment delay and white/pink noise internal generator, everything needed to optimize a loudspeaker system. Moreover, MDA2-140PAF supports sleep mode by setting time in the PC SW.
| Outstanding Performance | Excellent sonic performance with 24bit high end converters coupled with 48kHz sample rate High power output: 2x140W @ 4ohms; or 1x280W for the 70V/100V Direct DriveSwitched-Mode Power Supply with auto voltage sensing Class D Amp Module - full bandwith PWM modulator with ultra low distortion Full protection circuitry including Over-Current, Over/Under-Voltage, Output DC and Over-Temperature Supports DanteTM , Bluetooth with aptXTM , Ethernet up to user's preference |
| Top-grade DSP Engine | 5 band PEQ on input channel 7 band PEQ on output channel Each band can be switched to Bell, Lo/Hi-Shelving variable Q HP/LP filters with slopes from 6dB/Octave up to 24dB/ Octave including Butterworth, Bessel, Linkwitz-Riley Input channel includes Noise Gate, RMS compressors, while output channels features a precision Peak Limiter with selectable Attack/Release time and Threshold.Adjustable Delay time up to 164.998 ms for output |
| Network Connection & Control |
USB or Wifi connection for system setup, monitoring and control via manageable remote PC software Simultaneous control up to 32 units via PC software 3 Preset Selection |
| Power & Amplifier Sections | |
| Number of Channels | 2 |
| Max Output Power | 2x140W @ 4ohms; or 1x280W for the 70V/100V Direct Drive |
| Output Circuitry | Class D - full bandwith PWM modulator with ultra low distortion |
| THD+N | <0.003% |
| Signal To Noise Ratio | >105 dB (A-weighted, 20 Hz - 20 kHz, 8Ω load) |
| Frequency Response | 20 Hz - 20 kHz ± 0,15 dB (8Ω load, 1 dB below rated power) |
| Power Supply | Integrated power supply and auto voltage sensing |
| Operating Range | Universal Mains, 110-240 V |
| Consumption/Current draw and Thermal dissipation @230V | 8.8 W / 0.086 A/ 30BTU/H (Idle) 54.7 W/ 0.277 A/ 187 BTU/H (I/8 max. power@4ohm) 331 W / 1.54 A/ 1130 BTU/H (Full power) |
| Protections | Over-Current, Over/Under Voltage, Output DC and Over-Temperature |
| Maximum Input/Output Level | +12 dB |
| Audio | |
| Analog Input | 2 x electronically balanced, +12dB |
| Analog Output | 2 x electronically balanced，+12dB |
| AD & DA Converters | 24bit |
| DSP & Processing | |
| DSP Engine | MARANI® DSP |
| DSP Resolution | 24bit (data) x 24 bit (coeff.), 54 bit accumulation registers |
| 96 bit precision on intermediate processing data | |
| Input & Output Gain | -60 ~ +12 dB |
| Parametric Equalization | 5 filters per input channel; 7 filters per output channel |
| Filter Type | Bell, Hi/Lo-Shelving, HP/LP, Notch Filter |
| Filter Gain | From -15dBu up to +15dBu by 0.5dBu resolution steps |
| Center Frequency | Selectable with a 1Hz resolution step from 20Hz up to 20kHz |
| HPF/LPF Filter | HPF/LPF up to 48dB/Oct, selected as Butterworth, Bessel, Linkwitz Riley |
| Input Noise Gate |
threshold: -80 ~ -50dBu; Release time: 1~1000ms; Attack time:30~1000ms |
| Input Noise Generator | White/Pink Noise; Level: -40dBu ~ 0dBu |
| Input RMS Compressor | Threshold from -18dBu up to +12dBu; Attack time from 5ms up to 200ms; |
| Knee 0~100%; Ratio from 2:1 to 32:1;Release time from 0.1s up to 3s, with Make up -/+12dB | |
| Output Peak Limiter | Threshold from -18dBu up to +12dBu Release time 0.1 ~ 5ms; Attack time 1ms ~ 900ms; |
| Delay | -up to 164.998ms on output Channel |
| General | |
| Dimensions | 220x260x44（mm） |
| Weight, Net / Shipping | 4.41 lbs (2.0 Kg) / 5.51 lb (2.5 Kg) |
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