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DSP Marani MIR480A

Thương hiệu: Marani Pro Audio Mã sản phẩm: MIR480A
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MIR480A is a digital audio processor newly designed by Marani. It has extremely low noise floor, high dynamic range and powerful internal DSP to cover most of the usage scenarios. Whether in meeting rooms , theaters , touring performances, or even large-scale tours, you can use the A series processors. Advanced circuit design and original DSP algorithm are the core of pure and high-quality sound.

DSP Marani MIR480A

In the signal processing part of MIR480A, inside powerful MARANI DSP, DSP and AD/DA converters are running at 96KHz sampling rate, complete processing functions provide a complete speaker crossover solution.
From input gain/delay/noise gate/EQ/compression/FIR ,tooutputgain/delay/polarity/frequency pision/FIR/EQ/compression/compression, there are up to 13 types of parametric equalizer (PEQ) The filter type can be selected. The output crossover filter has the classic Linkwitz-Riley /Bessel/Butterworth, and there are also NXF horntype filters and FIR filters with a slope of up to 120dB per octave. The newly added MIR linear phase frequency pider filter can make the phase of the crossover point easier to join and produce a lower delay. Everything we provide is for better sound.

DSP Marani MIR480A

Added DSP plug-in, providing 96kHz FIR filter/highorder signal generator/RTA real-time spectrum analyzer, etc.
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.
Each input and output channel provides a maximum 512-tap FIR filter, which can be customized by third-partysoftwaretogeneratetheFIR convolution you need. It can be used for speaker presets to improve the phase response and control the directivity according to requirements.
The newly added MIR linear phase pider filter has the filter shape of the traditional IIR filter (Linkwitz-Riley 24+48/oct), but does not produce any phase shift, and the resulting delay is about 50% of the FIR filter.

Thông số kỹ thuật

Thông số kỹ thuật
Input impedance 20KΩ
Output impedance 100Ω
A/D dynamic range 118dB
D/A dynamic range 118dB
Maximum input level +20dBu
Maximum output level +18dBu
Total harmonic distortion ≦0.003%(+4dBu 1kHz)
Frequency response 20Hz~40kHz
Crosstalk ≦-95dB
SNR ≧113dB (A weighting)
Noise floor  ≦-94dBu (A weighting)
Common Mode Rejection Ratio 60dB
Number of analog input channels  4
Number of analog output channels 8
Rs485 control port 2
Network control port 1
DSP Processing 
Signal generatorwhite noise/pink noise, level range: -30dBu~+10dBu
input & output gain-18 dB ~ +12 dB, step  0.1dB
Noise gateThreshold range: -80dBu~-45dBu
Attack time: 1ms~1000ms; Release time: 1ms~1000ms
Dynamic loudness filter Gain range: 0dB-10dB Attack speed: fast/medium/slow
Parametric equalizerInput channels up to 31 optional types of PEQ
output channels up to 8 optional types of PEQ
Optional types include Bell filter, 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, band pass filter, notch filter 1st order allpass filter, 2nd order all-pass filter with variable Q value
The center frequencyadjustable within the frequency range of 20Hz~20kHz with a step accuracy of 1Hz
Q value/bandwidthThe 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 filterButterworth 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
MIR linear phase filterLinkwitz-Riley: 24/48dB per octave,NXF-40per octave
FIR crossover filtertype; 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 compressorStarting threshold range: -10dBu~ +20dBu;
Compression ratio range:2~32: 1;
Soft and hard knee: 0~100%
Attack time:0.1ms~1000ms; Release time: 10ms~15000ms
Gain compensation:Maximum 12dB
Peak limiter Threshold range: -10dBu~ +20dBu
Attack time: 1ms~1000ms; Release time: 10ms~3000ms
Hard limiterThreshold range: -10dBu~ +18dBu
Delay                            The adjustable delay time of each input channel + output channel is 452ms,
Step accuracy 0.0104ms (10.4us)
FIR filterEach input channel and output channel can import FIR filter with 48kHz sampling rate and 512 taps
size482x44x207mm 1RU
Net/Gross weight3.0 Kg / 3.5 Kg

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