FIR Amplifiers Module

With the "Magic Series" of plate amplifiers for active speakers, MARANI wanted to change the standard way of powering active systems.
Not just DSP processing on the signal and Class D modules for powering it, but something much more integrated: a system considering the power, its control and the signal processing a single entity, where the Processes on Signal were considering the Power status and Vice versa.
All in all, a system where Power and DSP processing are working in Sync and Syntony in order to optimize the performances of the overall sound reproduction process.
From this point of view, the Magic Series is embedding a dedicated DSP within the Class D modules, taking care both of Signal Processing and Power control.
This approach creates an intimate relation between the processed signal and the delivered power, allowing to get in both cases the best results for the overall system efficiency in terms of power delivery and protection of the power stage itself, so as keeping the integrity of the processed signal.
The all DSP processes are coming from the long experience of MARANI Engineers in developing proprietary algorithms with top features in terms of filtering (IIR/FIR) and Dynamic processes with very low distortion.    To complete the architecture of the Magic Series, an advanced networking has been made available to the users, including double ports Ethernet and DANTE interfaces.
The Class D modules, DSP controlled, have been developed in order to fit most of the customers' requirements for their speakers, supporting with a large amount of signal processes and with an embedded tool for the Automatic Calculation of IIR/FIR filters coefficients for the speaker automatic response adjustment: AEQ.
 

Magic Series: PDAxx Symmetrical Modules and PDAxx for SUB
Two types of plate amplifiers are available, one is a Symmetrical Topology one, with a range of powers matching the most common requirements in terms of 2-ways medium power systems and a single or 2-ways high power solutions for satisfying the high power and dynamics required by the SUBs
Symmetrical Series: the powers available in this series are originally Symmetrically distributed to two channels.
Nevertheless, the power can be differently distributed on the two channels in Asymmetrical way, with the use of Sw limiting on one of the two and increasing the power on one of them;        the total power is partially shared indeed among the two channels.
SUB series: this series see at the moment two plate, one for Lower size woofers, delivering 2.4kW/4Ohm on a single channel and a second module, 2 channels, thought for powering the high power requirements of double 18" solutions or equivalent.       The all models of the Magic series Plate amplifiers have been thought for giving to the user the maximum in terms of processes, networking and flexibility in use,particularly
* Advanced MIR/FIR filtering: MIR are MARANI specific IIR Linear Phase filters, shaped as the Classic Linkwitz 24/48dB/Oct;  extensive use of FIR which is provided together with a complete set of classic IIR filters.
* Power Limiters: advanced dynamic processes are there for power limiting purposes, operating together with hidden ones working automatically on the base of the signal analysis.
* AEQ: this tool is an embedded system measurement working with an external ASIO card and a microphone, for the system IR measurement and automatic calculation of IIR/FIR filters available into the Filters' set of the Plates themselves.
* Fw update by remote: the Fw can be easily updated by remote via Pc sw control.
* Sleep Mode: is allowing to set a time after the one, if no input signal detected, the plate set in Mute the outputs.  Once signal is back, automatically and soon the outputs are unmounted.
* Standby Mode: this mode allows the plate amplifier to set in Mute the outputs and set in low power the power stage, discharging the rails voltages....        entering the power save condition.        Also here the use can set a time after the while, if not detected input signal, the system enters the Standby mode.        To exit from this mode, need the operator's action.
* Advanced networking: the all plates can be controlled by a single sw shell and can be interconnected via double port Tcp/Ip port or DANTE for daisy chain connections.
* Powercon Mains link.