| Audio | |
| Input impedance | 20KΩ |
| Output impedance | 150Ω |
| A/D dynamic range | 123dB |
| D/A dynamic range | 129dB |
| Maximum input level | +22dBu |
| Maximum output level | +21.5dBu |
| Total harmonic distortion | <0.0015% (+21dBu 1KHz) |
| Frequency response | 20Hz~45kHz |
| Number of Dante channels | 4×4@48kHz 2×2@96kHz Ultimo/Brooklyn optional |
| Crosstalk | ≦-98dB |
| Signal-to-noise ratio | ≧116dB +20dBu 1KHz |
| Noise floor | ≦-96dB (A weighting) |
| Common Mode Rejection Ratio | 65dB |
| Number of analog input channels | 4 |
| Number of analog output channels | 8 |
| Rs485 control port | 2 |
| Network control port | 1 |
| DSP & Processing | |
| Input & output gain | -18 dB ~ +12 dB, 0.1dB step |
| Noise gate | Threshold range: -80dBu~-45dBu attack time: 1ms~1000ms; Release time: 1ms~1000ms |
| Dynamic loudness filter | Gain range: 0dB-10dB attack : fast/medium/slow |
| Parametric equalizer | Input channels up to 27 optional types of PEQ, output channels up to 8 optional types of PEQ |
| Optional types include | Bell, 1st order high Shelf filter, 2nd order high Shelf filter Variable Q, high Shelf filter, 1st order low Shelf filter, 2nd order low Shelf filter Variable Q low Shelf filter, 1st-order low-pass filter, 2nd-order low-pass filter Variable Q low pass filter, 1st order high pass filter, 2nd order high pass filter, Variable Q high pass filter, notch filter， 1st order all-pass filter, 2nd order all-pass filter with variable Q value |
| The center frequency | adjustable within the frequency range of 20Hz~20kHz with a 1Hz step |
| Q value/bandwidth | The Q value range of Bell filter is 0.4~128, the step is 0.01 The range of the Q value of the Chevron/high-pass/low-pass filter is: 0.1~5.1, and the step is 0.01 The value range of bandpass/notch filter Q is: 4~104, step is 1 |
| Equalizer gain range | -15dB～+15dB |
| IIR crossover 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 slope is 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 slope is 40/45/50/50/55/60/65/70/75dB per octave |
| FIR crossover 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: -10dBu~ +20dBu; attack time:0.1ms~1000ms; Release time: 10ms~15000ms Ratio range:2~32: 1 Soft knee: 0~100% Make up:Maximum 12dB |
| Peak limiter | Threshold range: -10dBu~ +20dBu attack time: 1ms~1000ms; Release time: 10ms~3000ms |
| Hard limiter | Threshold range: -10dBu~ +20dBu |
| Delay | The adjustable delay time of each input channel + output channel is 452ms, 0.0104ms (10.4us) Step |
| FIR filter | Each input channel and output channel can import 48kHz sampling rate 512 tap FIR filter currently, the FIR filter in the plug-in can be switched to 96kHz sampling rate, up to 4096Taps@48k/3600Taps@96k tap number to achieve full frequency linear phase. |
| General | |
| Dimensions | 482x44x253(mm) 1RU |
| Package size | 580x340x120(mm) |
| Weight, Net / Shipping | 3.3 Kg / 3.8Kg |
| Preset number | 50 |
MIR880F
Flagship MIR 8 IN 8 OUT Audio System Processor
The Mir-F family of digital processors are Marani’s new flagship system processors, including the MIR480I and MIR880F.The hardware adopts top AD/DA chips with excellent -96dBu background noise. It also has analog, digital AES/EBU, and Dante signal access capabilities, and has automatic switching function. Any signal can be set as the highest priority. As the core processor of the system, it has the redundancy and backup characteristics, and is suitable for government projects, high-end clubs, large mobile performances, theaters, radio and television and other places with higher requirements for signal processing.
From the input gain/delay/noise gate /EQ/ compression /FIR to the output gain/delay/polarity
/crossover/FIR/EQ/ compression/peak limiter, the parametric equalizer (PEQ) has up to 16 filter types to choose from. The output crossover filter has the classic Ringquitzrelli/Bessel/Butterworth, The NXF（Notched X-over Filter） and FIR filter with slope up to 120dB per octave are also available. The new MIR linear phase crossover filter makes it easier to engage the phase of the crossover point and produces lower latency. Everything we offer is for better sound.
With the addition of DSP plug-in, traditional processor architecture is usually fixed and unadjustable. Marani innovatively introduces the concept of plug-in, and uses powerful co-processor to complete dynamic processing that traditional processor is difficult to complete, such as dynamic balancing, linear phase multi-segment compression, feedback suppression and other functions. This feature is an open architecture, and the type and number of plug-ins will be updated from time to time.
The new design of Hard Limiter allows constant rate limiting of signals exceeding the threshold at any threshold, better protecting the speaker unit.
Each input/output channel provides a filter with a maximum of 512 tap FIR. You can use the built-in AutoEQ plus an external ASIO sound card to measure pulse and generate FIR coefficient or use third-party software to generate FIR coefficient as you need. For speaker preset, phase response can be improved and directivity can be controlled as required.
The new MIR linear phase crossover has the type and shape of the traditional IIR filter, but does not produce any phase distortion, and the delay generated is about 50% of the FIR filter.
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The newly designed Hard Limiter (Hard Limiter) allows a constant rate limit on signals exceeding the threshold at any threshold to better protect the speaker unit.
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The new design of Hard Limiter allows constant rate limiting of signals exceeding the threshold at any threshold, better protecting the speaker unit.
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The new MIR linear phase crossover has the type and shape of the traditional IIR filter, but does not produce any phase distortion, and the delay generated is about 50% of the FIR filter.
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