Marani MDA-KDM Series Manual

Digital power amplifier
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Digital Power Amplifier
MDA-KDM Series
Website: www.marani-proaudio.com
E-mail: info@marani-proaudio.com
MDA-KDM Series
Digital Power Amplifier
© MARANI Pro Audio. All rights reserved.

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  • Page 1 Digital Power Amplifier MDA-KDM Series MDA-KDM Series Digital Power Amplifier © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 2: Safety Instructions

    Do not attempt to disable this grounding connection by using an adapter or other methods. 1.2 This machine provides analog and digital balanced input card holder. Please connect to the correct signal source according to relevant regulations. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 3 ⑨ A/B/C/D output interface, A/C port is a combined output. +1/-1 is the A/C output channel and +2/-2 is the B/D output channel. ⑩ Power input interface and power switch, connected using PowerCON plug, connected to 90-240V 50/60Hz AC power. ⑪ Removable Front Panel Grid for dust filter replacement © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 4 Computer or Switch or Router.  The MDA-KDM series supports two IP addressing modes: STATIC addressing or DHCP mode (default). The amplifier addressing mode has to match the computer network settings. For DHCP mode connections, the IPv4 address option of the computer network adapter has to be Dynamic (Automatic);...
  • Page 5 Download link: https://www.marani-proaudio.com/dettprodotti-USB_Drivers_Download/178_133/eng/ DANTE Audio interface MDA-KDM series amplifiers feature Dual Dante ethernet port (labelled Primary and Secondary). When PRIMARY DANTE port is connected to the external DANTE source, the Secondary Dante port behaves as a standard switch port, allowing daisy-chaining through the amplifier to other audio devices as source.
  • Page 6 1. Base on Dante Brooklyn Card: Option 3: Dante Primary Option 4: Dante Secondary (Redundancy available) 2. Base on Dante Utlimo Card: Option 5: Dante to next Amplifier or other devices © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 7 Display screen management: The MDA-KDM series power amplifier has a 4.3 inchs capacitive touch screen, by which users can easily recall presets, switch input source, set input gain/mute as well as channels linkage or network settings, and monitor the main amplifier status information.
  • Page 8 After installed the setup, at the first start-up of the PC Software, the Firewall of PC ask to blocked some features of this app, is recommended to allow the access otherwise the amplifier connect via TCP/IP can't be automatically announced. Main page © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 9 Off-line/On-line switch Device Name Remove device IP address Open the edit window Double click to open the edit window Unique Id will be show when the device is on-line © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 10: Edit Window

    15. Page selector (R: routing page; L: Levels and meters page; A/B/C/D input channel pages,1/2/3/4 Output channel pages) 16. About (some info about the firmware and software version) 17. Standby button (red on, blue off) © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 11 (involving the front panel display, only English characters and Arabic numerals are supported). Max 16 characters for the device name are possible, Max 6 characters for the input and output names © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 12: Recall Mode

    Max Input (sensitivity): +15dBu or +21dBu Amp Gain (max gain of the amplifiers): MDA2-8KDM: 26dB, 32dB, 38dB MDA4-4KDM: 19dB, 25dB, 31dB MDA4-6KDM: 21dB, 27dB, 33dB MDA4-10KDM: 24dB, 30dB, 36dB © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 13 The administrator password is 111111 by default. Admin Admin: Here is possible change the Admin password (the User need to know the current Admin password) © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 14: Block-Scheme

    MDA4-6kDM MDA4-4kDM Source The MDA-KDM series power amplifiers support analog, digital, and Dante signal inputs. They also support the input source hot backup function, allowing users to specify backup signals for the primary source. When the AUTOSWITCH function is enabled (“ON”), the amplifier detects any signal loss on the primary (first) source, due for example to a cable disconnection, and automatically switches to one of the backup sources, following the priority set by the user.
  • Page 15: Status Bar

    Digital Power Amplifier MDA-KDM Series Routing The MDA-KDM series MDA4-X power amplifiers have a 4x4 input/output routing matrix, (the MDA2-8KDM, that has a 2x2 input/output routing matrix), Allowing users to mixing the signal, with a suitable level, any input signal into one or more output channels. The mixing level can be adjusted within the range (0...-30dB).
  • Page 16: Level Page

    - MASTER GAIN: gain acting on all the inputs channel (range -12dB~+12dB). - MASTER VOL: volume acting on all the output channel (range -80dB~0dB). - MASTER MUTE: mute all output channels © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 17: Input Page

    The dynamic loudness filter boosts the low and high frequencies of an adjustable amount when the sound pressure level is low, in accord to the human hearing curve. The boost effect automatically decreases when the signal level approaches the maximum value. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 18 In the plot view, it‟s also possible to Zoom In/Out the curves with the buttons, select the plot type (magnitude or phase) and import an impulse response data provided by third party software © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 19 AP represents the signal after channel process. Input channel polarity switch Delay adjustment in millisecond [ms] / meter [m]. Delay range: 0-300.989ms / 0-102.336m. Step fine: 0.01ms/0.003m. Input channel mute switch © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 20: Output Page

    To this end, Marani‟s proprietary MIR filters integrates advantages of both IIR and FIR based X-over, since they provide the same magnitude response of the IIR and a linear phase as the FIR, with a low latency value.
  • Page 21 -48dB/Oct BW Linkwitz-Riley, -48dB/Oct LR Bessel, -40dB NXF -45dB NXF NXF, -50dB NXF with slopes ranging from -6dB/Oct to -75dB/Oct -55dB NXF -60dB NXF -65dB NXF -70dB NXF <-75dB NXF © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 22 If the Speaker Drive is set as 70V or 100V then the value show are only in Vrms. If the speaker drive is set as 8/4/2 Ohm and the selected output unit is in Watt then the watt are referred to 8/4/2 Ohm © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com...
  • Page 23: Amplifier Calibration

    Amplifier Calibration The MDA-KDM series includes a powerfull calibration function, allowing to optimize the amplifier response depending on the current speaker connected to it. It processes a feedback signal at the output power connector and calibrate the amplifier settings to provide a flat magnitude and linear phase response.
  • Page 24 Select the speaker type (FULL-RANGE, WOOFER, MID-RANGE or TWEETER) and click the “VERIFY” button. ⑥ ⑤ When the verification process completes, the amplifier response is shown, both in magnitude and phase. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 25 MDA-KDM Series Preface MARANI AEQ (Auto EQ) is an application, developed by Marani Pro Audio in Italy, for performing Acoustic correction of loudspeaker and room responses using DSP based approaches. This tools allows to perform an impulse response measurement of speaker or room and then to design the optimal equalization filter.
  • Page 26 INFO: Information page, AEQ and introduction to use, switching modes IR: System impulse response measurement and import of external measurement data AEQ: Auto EQ parameter configuration LISTEN: listen to the comparison Recall/Saving: AEQ project Settings © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 27: Mode Selection

    Switching between the three configurations does not affect the algorithm, which only depends on the “selected “MODE”. The purpose of the three configurations is to give advice on the best setting for getting a successful result, given the specific measurement to proceed with. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 28 Click "PANEL" to quickly open the configuration program of the sound card "ASIO" When the sound card is connected correctly, need to select input and output channels © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 29: System Measurement

    If fast automatic calculation is required, after the measurement is completed, you only need to select the corresponding mode (FIR/IIR/FIR+IIR) in the "AEQ page-AEQ item", select the Magnitude and Phase to be processed, and then insert the device. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 30: Display Of Information

    In the upper left corner of each window, multiple types of adjustments are provided, and the window parameters can be zoomed for better observation.  Display of information In the upper right corner of each window, the position information of the current mouse position is prompted. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 31 Non-experienced users can consider, use the automatic windowing function, and turn on Auto Win "ENABLE" to enable the automatic windowing process. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 32 PLOT LAYOUT: RESET: restores the view layout TRACES COLOR: Freely set different curve colors RESET: restore curve color CLOSE: to close the page CANCEL: cancels the setting APPLY: apply settings © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 33 Flat: flat curve; Auto: automatic curve (the algorithm will target an “optimized” curve following the shape of the measured original one) new preset can be saved via function “Save”(E) © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 34 Target curve at the same time. SAVE: After the design is completed, the target curve can be saved, and the preset can be quickly selected and switched in "Segments". © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 35: Mode Switching

    Check MAGN + Phase: AEQ performs arithmetic processing on Magnitude and phase at the same time; Note: In IIR mode, only MAGN can be checked, and IIR can only process Magnitude. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 36 Open "SHOW", open the AEQ range line in the drawing area, you can drag to select IIR: FIR: Modify the number of PEQ segments and IIR data Modify FIR Taps or reduce FIR latency (operation delay) © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 37 Post EQ can join PEQ after FIR processing  AEQ: save & write Session:select/switch session Create a new session Presets are saved to the current session The current data is quickly written to the device © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 38 ASIO sound card settings, select the ASIO sound card and settings on “PANEL”, select MIC INPUT and LINE OUTPUT Measure IR, two options “DYNAMIC PROCESSES” and “IIR FILTERS”, select one, and click “START”, measuring the IR © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com...
  • Page 39 • Latency Link (Auto Adjust of outputs latency if used FIRs) • Temperature Led • USB 2.0 Type B port • Analog Inputs Link Amplifier Specifications (CEA-2006/490A) • AEQ © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 40: Add A Group

    (the group will be initialized with some parameters present on the first channel of the list) 5) Group filter: the user can choose the number of the filter used by group 6) Create a Group: see in next page… © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 41 Example of a single channel in a Group: If all filters are in bypass state then the group can use up to 12 bands PEQ filter Peq filter enable off (bypass=ON) Number filter Group max 12 © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 42 3 Channels added to the Group from 3 different devices 12 bands PEQ filter are selected Clicking on the ADD button, in the main window will be show the “LEFT” Group window © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 43: Settings Group

    User can not use these channels in other group, to use again the channel the User must reset the group from the settings page present on the Edit window of the device © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com...
  • Page 44 Orange: Some channel devices added to the group are muted and some are un-muted. Gray: All channel devices added to the group are un-muted Red: All channel devices added to the group are muted © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 45 When the specific device is removed from a Group, or when a Group is dismissed, then the input PEQ filters of the specific device will be again enabled and available © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 46 2024.01.01 with 4 hours recording, one file created 2024.01.10 with 3 hours recording one file created 2024.03.10 with 8 hours recording, then the plot can show all parameters from 2024.01.01 to 2024.03.10 in total 15 hours). © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 47 The position of the frame is important because the frame on the top decide the Y axis scale unit and the trace will be show in foreground Special traces (show only the status on/off) © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 48 Shift Y Zoom Preset Zoom Y - Shift X Zoom Y + Zoom X - Redo Zoom Y area Undo Zoom X + Zoom X area Autoscale X-Y Zoom Original © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 49 2. Push down and hold the mouse button on the plot 3. Move the mouse to up or down * Autoscale Y: show the Y axis with all parameter's trace inside the plot © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...
  • Page 50 User must every time to compare the trace of the protection with the trace of the Standby. On the picture above, the amplifier was not in protection because the protection and standby are together ON in the same time. © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com...
  • Page 51: Dante Setup

    Appendix 3 DANTE Setup All MARANI MDA-KDM Series amplifiers feature a Dante card which can be set up to send and receive audio on a Dante network. This type of connection utilities standard IP networks to transmit high-quality, uncompressed audio.
  • Page 52 MARANI MDA-KDM Series amplifiers connected to the Dante network will automatically obtain IP addresses by default, and in most circumstances, there is no need to change the address settings.
  • Page 53 Given in example MARANI DEVICE as unit to route.. Double click the MARANI DEVICE, Will show the window as below: you can see the small green speaker indicating that the signal from the MARANI DEVICE is entering the DANTE board.
  • Page 54 Digital Power Amplifier MDA-KDM Series © MARANI Pro Audio. All rights reserved. Website: www.marani-proaudio.com E-mail: info@marani-proaudio.com...

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