Marani MIR480I Instruction manual

Import
FI R
FIR
IIR
96
kHz
8IN
8OUT
Quick Start
Manual
MIR480I/MIR880F
Audio system processor
iFIR & AEQ
POWERFUL
MARANIDSP
2021-11 V1.0
Peak
RMS

INTRODUCTION
MIR Series– MIR880F/MIR480I
The MIR-F series of digital processors are the flagship system processors newly launched by
Marani, including two models: MIR480I and MIR880F.The hardware adopts the top AD/DA chip,
the background noise is as low as -96dBu, and it has analog, digital AES/EBU, Dante three signal
access capabilities, and has the automatic switching function. Any signal can be set to the highest
priority. As the core processor of the system, it also has backup features, suitable for government
projects, high-end clubs, large-scale mobile performances, theaters, radio and television and other
places that have higher requirements for signal processing.
In the signal processing part, the powerful M ARANI D SP, DS P and AD/DA converters are all
running at 96KHz sampling rate, and the complete processing functions provide a complete
speaker x-over/protect solution.
From the input gain/delay/noise gate /P EQ/compressor FIR to the output
gain/delay/polarity/crossover/F IR/PEQ/compressor/peak limit, the parametric equalizer (PEQ)
has up to 13 filter types to choose from. The output crossover filter has the classic Linkwitz-
Riley/Bessel/Butterworth, The NXF (North X-over Filter)and FIR filter with slope up to 120dB per
octave are also available. The new M IR 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.

FIR 计算软件
FIR
reP hase
FIRd
rePhase
FI R Capture
FI R Designer
FIR.txt
Cur rent F IR - 153 6FIR
频响 [dB /H z]
30.0
20.0
10.0
0.0
-10.0
-20.0
-30.0
20Hz 50Hz 100Hz 500Hz 1 kHz 5kHz 10kHz 20kHz 30kHz 4 0kHz
30.0
20.0
10.0
0.0
-10.0
-20.0
输出
通道指 派
RTA
1 2 3 4
4096 S ample s
窗长 度
平均 数 值
1
增益 [ dB]
0
-30 - 20 -1 0 0 10 20
15d Bu Cl ip
25.0
15.0
5.0
-5.0
-15.0
-25. 0
-35. 0
20Hz 50Hz 100Hz 500H z 1kHz 5kHz 10kHz 2 0kHz
25.0
15.0
5.0
-5.0
-15.0
-25. 0
-35. 0
● Newly added DSP plug-in, providing additional practical plug-ins such as high-order FIR filter
and feedback suppressor, including 96kHz FIR filter/dynamic EQ/ high order signal
generator/RTA( real-time spectrum analyzer), etc.
● The newly designed Hard Limiter allows constant rate limiting of signals exceeding the threshold
at any threshold value, which better protects the driver.
● Each input and output channel provides a 512-tap FIR filter, which can be customized by third-
party software to generate the F IR 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 crossover filter has the filter shape of the traditional IIR filter
(4th/8th order Linkwitz-Riley), but does not produce any phase shift, and the resulting delay is
about 50% of the FIR filter.

Front panel overview
320*96 high score LCD screen
Rotary Encoder (can be rotated / up, down, left, and right)
Function selection
Input level meter: Display the pre-fader signal, the mute does not affect the level
display. When the Mute light is on, it means that the current channel is muted. When the SIG
light is on, it means that the input signal reaches -40dBu; -12dBu, 0dBu, +6dBu, and +12dBu
represent the actual RMS value of the signal. When the Clip/Over light is on, the signal is
close to the maximum value before analog to digital conversion. The Limit light lights up
when the channel compressor/peak limiter/hard limiter is activated.
The output level meter displays the post-fader signal, when the output channel mute meter
does not display any value. Mute light on means the current channel is muted, SIG light on
means that the input signal reaches -40dBu; -12dBu, OdBu, +6 dBu, +12 dBu represent the
actual RMS value of the signal, Over light on means the signal reaches the Hard limiter
threshold, The Limit light lights up when the channel compressor/peak limiter/hard limiter is
activated
Input channel selection/mute: press this key to edit the processing of the current input channel,
including channel name, gain /polarity/delay/parametric equalization/compressor. Hold for
three seconds to mute the current channel.
Output channel selection/mute: press this key to edit the processing of the current output
channel; including input channel matrix routing, high pass and low pass, slope, filter type; also
include gain/polarity/delay/parameters Equalization/RMS compressor/peak limiter/hard
limiter and other parameters. Hold for three seconds to mute the current channel.
1
2
3
4
5
6
7
123 4 5
67

AC power input, standard C13 interface, please ensure that the power grounding pin is well
grounded, otherwise electric shock may occur.
Ship type power switch.
The fuse box contains a spare fuse, which can be replaced in case of emergencies. The fuse
specification is 220V0.8A
Ethernet control interface, support TC P/UDP protocol, the default IP address is DHCP , The
port below can be changed to an RS485 loopout port.
Rs485 protocol interface, which can be used for connection software, and can also be used for
central control protocol transmission,The wiring is defined as:
Analog signal input interface, which can be switched to digital AES/EBU signal input,
processor audio signal input, maximum input level +20dBu, input impedance 20KΩ.
Analog signal output interface, processor audio signal output, maximum output level +20dBu,
minimum load 1000.
FU SE
1
23 4 567
XLR Balanced：
Signal(in phase+）
Signal(out of phase-）
Ground,shielding
1
2
3
12
3
12
3
2
XLR Unbalanced：
Signal
Ground,shielding
1 3
Rear panel overview
1
2
3
4
5
6
7
RS485-
RS485+

When using a network interface to connect, use a Cat 5/6 cable to connect the
ETHERNET port of the processor to the network adapter interface of the PC, and
adjust the IPV4 address option of the corresponding network adapter in the
Windows network settings to automatically obtain DHCP, and then open the
software Then the current processor can be found automatically.
HOW TO QUICKLY CONNECT TO THE SOFTWARE
The MIR-F/I series provides 3 kinds of control interfaces, namely
USB/RS485/ETHER NET, the connection switching of the three modes does not need to
be set.
1
Cat5ecable
Pop-up diagram
在线 ？
MIR880F
USB 输入
输出
LAN发现设备
找到MI R880F@169.254.247.152(UD ID:3D73A C348D7B)
您希 望继 续 吗？
是（Y） 否（N）

Traditional PC will provide DB9 serial port, which needs to use DB9 to RJ45
conversion line to adapt to the high-level and low-level signals of RS485
protocol usually at pin 2 and pin 3, and pin 5 is grounded.
Usually now common PC models do not provide serial ports,so a US B-to-serial
converter is required. Marani provides a USB-to-RJ45 serial converter (USB-
485-RJ)
To use RS485 often requires a converter
①
②
RS485-
RS485+
USB-to- R J45
2

The interface conversion diagram of US B to XLR converter is as follows
After the hardware is successfully connected, the interface prompt will
automatically pop up when using the network method, RS485 or USB need to
manually add the corresponding device, and then choose to read or write
③
RS-485ID=01
？
USB
？
OFF-LINE
OFF-LINE
INP
OUT
INP
OUT
MIR880F
MIR880F

SOFTWARE MAIN INTERFACE
1
2
3
4
5
6
7
8
9

Use Save to save the current preset to the PC, and use Import to import the preset
that has been saved in the PC to the processor. Use Recall to recall the preset stored
in the processor, and click Save to store the preset in the processor's preset library.
The channel name and processor name can be changed arbitrarily;
After entering the administrator password, you have the highest authority of the
machine, and you can freely lock some or all of the parameters of the output
channels.
1
2
Load Save
Recall Store

Input processing part, including gain, delay, polarity, noise gate, maximum 27-band
parametric equalization, or use F IR filter and 13-band PEQ, dynamic processor part
includes compressor and dynamic loudness booster, the input part is All open and
unlocked by default
The administrator has the highest authority of the machine. After the administrator
account is logged in, some or all of the output processing modules can be locked.
The locked part can be hidden or not hidden. The output part is completely invisible
after being hidden.
3
4

Overall preset saving and restoration, suitable for machine migration or OE M
customers writing data in multiple machines
Provides many plug-ins, currently including 48kHz sampling rate FIR filter and
96kHz extended bandwidth FI R filter, the default is 48kHz sampling rate, 1024Taps
per channel; when a high number of taps is required, multiple channels can be
aggregated into one channel to achieve the highest 4096Taps FIR filter, enough to
cover the whole frequency band processing
5
6
The output part, including gain, polarity, delay, IIR high and low pass filters, can be
switched to MIR linear phase filter, or FIR filter can be used. Contains three dynamic
processing modules: 8-band PE Q, RMS compressor, peak limiter, and hard limiter.
7
Backup Restore

Signal source selection, AB/CD channel can be selected as analog signal or
AES digital signal input in two groups
8

Matrix routing design, completely free signal transmission design
In the input part, the adjacent physical input channels can be combined and sent to
one input processing channel;
9
From the input processing channel to the plug-in channel, 8×8 matrix transmission
can be performed;
The plug-in channel to the output processing channel can also be sent in 8×8 matrix
The output processing channel to the physical output channel can be superimposed
on adjacent channels.

Via Vittorio Veneto N.11
I-42022 BORETTO RE
www.marani-proaudio.com
[e-mail]
SEED Guangzhou Electronic LTD.
4F/5F, Building B, NO.885, Shenzhou Road
Scientific City, Guangzhou, China
www.marani-proaudio.com
[e-mail]
Tel: [phone]
China Facotry
Marani Proaudio Srl