Beskrivning
MDA 4-7000DM is a high-performance and high-power touring-grade digital power amplifier. It has a total power output of 4x1300W under a 4-channel 8Ω load. Built-in powerful digital processor with 4 inputs and 4 outputs. 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 to enable this power amplifier to take into account both the fixed installation and the mobile performance market.
MDA4-7000DM adopts powerful Marani DSP, including 4 input and 4 output processing channels. Both DSP and AD/DA run at 96KHz sampling rate. The complete processing function provides a complete crossover solution for the speaker. With signal hot backup automatic switching function, 3 levels of priority can easily back up the input source.
From input gain/delay/noise gate/EQ/compression
/FIR /to output gain/delay/polarity/X-over/FIR/EQ/RMS compressor/Peak limiter, there are up to 13 PEQ types to choose, The output crossover filter includes the classic Linkwitz-Riley/Bessel/Butterworth, and the MARANI brand unique NXF（Northed X-over Filter）, built-in FIR filter, and newly added MIR linear phase filter can make the phase of the crossover point easier to join while maintaining a very low delay. All the functions we provide are designed to help you better restore the sound.
| Power & Amplifier Sections | |
| Input impedance | 20KΩ |
| A/D dynamic range | 118dB |
| D/A dynamic range | 118dB |
| Maximum input level | +21dBu (when input gain is -8dB) |
| DSP maximum output level | +12 dBu |
| Total harmonic distortion | 0.03%@ 1W 4Ω |
| Frequency response | 20Hz ~ 40kHz |
| Crosstalk | 85dB |
| Signal-to-noise ratio | >113dB (A weighting) |
| Voltage gain | 26 dB /32dB |
| 4Ω power | 4x1600W |
| 8Ω power | 4x1300W |
| Minimum load | 4Ω |
| analog input | 4 XLR electronic balance |
| AES input | 4 XLR 110Ω impedance Transformer balance |
| Dante input | 4 Redundant/AES67 (optional) |
| Network control | RJ45 |
| DSP & Processing | |
| Signal generator | white noise/pink noise level range: -40dBu~0dBu |
| Input & output gain | -18 dB ~ +12 dB, 0.1dB step |
| Noise gate | Threshold range: -85dBu~-50dBu Start-up time: 1ms~1000ms; Release time: 1ms ~1000ms |
| Dynamic loudness filter | Gain range: 0dB-10dB |
| Parametric Equalizer | Each input channel can have up to 12 optional types of PEQ, and each output channel have up to 8 optional types of PEQ |
| Type of PEQ include | Bell, 1st order/2th order high shelf, variable Q high Shelf filter , 1st order/2th order low Shelf filter, Variable Q low Shelf filter, 1st order/2nd order low pass filter, Variable Q low pass filter, 1st order/2 order high pass filter, Variable Q high-pass filter, band-pass filter, notch filter, 1st-order all-pass filter, 2nd-order all-pass filter with variable Q The center frequency is adjustable within the frequency range of 20Hz~20kHz with a step accuracy of 1Hz |
| Q value bandwidth | The Q value range of the Bell filter is: 0.4~128, with a step of 0.01, The Q value range of the F/high-pass/low-pass filter is: 0.1~5.1, the step is 0.01, and the Q value range of the band-pass/notch filter is: 4~104, the step is 1 |
| Equalizer gain range | -15dB～+15dB |
| IIR crossover filter | Butterworth slope: 6/12/18/24/36/48dB per octave, bay Searle slope: 12/24dB per octave, Linkwitz-Riley slope: 12/24/36/48dB per octave, NXF horn filter slope: 40/45/50/50/ 55/60/65/70/75dB per octave |
| MIR linear phase filter | Butterworth slope: 6/12/18/24/36/48dB per octave, Bessel Slope: 12/24dB per octave, Linkwitz-Riley slope: 12/24/36/48dB per octave, NXF horn filter slope is 40/45/50/50/55/60 /65/70/75dB per octave |
| FIR Crossover filter | filter type; high-pass/low-pass/band-pass/external import, Taps range: 256 ～ 512, slope Range 21～120dB per octave, time window type: Rect / Sinc / Keiser / Hanning / Hamming / Blackman /Blackman-Harris/ Blackman-Nuttal / Nuttal/ Keiser-Bessel/Sine. |
| RMS compressor | Threshold range: -15dBu~ +12dBu; compression ratio range: 2~32: 1; soft and hard Inflection point: 0~100% Start-up time: 0.1ms~1000ms; Release time: 100ms~15000ms Gain compensation: -12dB~+12dB |
| Peak limiter | Threshold range: -15dBu~ +12dBu Start-up time: 1ms~1000ms; Release time: 100ms~5000ms |
| Delay | The adjustable delay time of each input channel + output channel is 452ms, and the step accuracy is 10.4us; |
| FIR filter | Each input channel and output channel can choose to import a FIR filter with 512 taps. |
| General | |
| Dimensions | 482x88x470(mm) 2RU |
| Weight, Net / Shipping | 14.5 Kg / 16Kg |
| Preset number | 50 |
