MDA88F is a powerful digital audio matrix with 8 class D amplification channels capable of delivering a power up to a total of 2000W @ 4o. To ensure maximum reliability, it includes two switching power supplies with highly efficient PFCs that individually provide adhesive energy 4 output channels. The 8 output stages use the class D circuitry that allows to obtain low distortion, high efficiency all equipped with a complete set of circuit protection. Designed specifically for applications in audio conference systems, MDA88F offers a complete set of value-added features such as 8 individually switchable inputs such as line or mic with phantom power and 8 line outputs, all managed by a powerful DSP together with 24bit to high converters prestazioni.Inotre MDA88F supports "Routing" mode in which the inputs can be routed / mixed in any output. Each MIC / LINE input channel provides pass filters-high and pass-bass 1° Order, 3-band parametric equalizer, Noise gate function and gain control. Furthermore, the microphone inputs include the Feedback Eliminator function, based on a powerful "pitch shifting" algorithm, particularly suitable for "voice" applications. Automixing function automatically adjusts the input level, to make the management easier thanks to both the nom (open microphone number) function, and to the gain sharing algorithm. In addition, the "Ducker Priority" function imposes a "priority order" to open microphones, so that the high priority inputs attenuate those inputs at low priority. Each output offers up to 5 parametric equalization bands, crossover filters, RMS compressor, Peak Limiter and programmable delay. MDA88F can be connected via USB, Ethernet or RS485 for remote and control configuration, using the dedicated PC software that also allows the setting of all the parameters and viewing all levels in real time. Additionally, the amplifier can also be managed by the Apple iPad® device, using DPA880XT dedicated software that allows you to intervene on all control and management parameters. For application in complex systems, MDA88F also provides 8 digital in / out (GPIO) ports for integration with other devices. Finally, it can be connected through the RS485 connection to the optional CP4 wall remote control panel that allows the selection of 4 assigned presets and master volume control.

Features

• Outstanding Performance: High Power Output: - 8 x 250 w @ 4OOHM 4 x 500W @ 8ohm (Bridge mode)- 2 Switched-Mode with active PFC and Voltage Sensing cars- Class D, Full PWM modulator bandwidth with ultra low distortion- Complete protection circuits with over-Current, Over / Under-Voltage, DC output and over-temperature- 8 processed outputs destined to drive additional poweramplifiers- Excellent sound performance with 24bit high-end converters coupled with 48khz sampling frequency- 8 MIC / LINE inputs, 8 outputs with complete matrix mixing
• Top-Grade DSP Engine:- 3 Parametric equalization bands for each input channel- 5 Parametric equalization bands for each output channel- Each band can be switched to Peaking, Low / High Shelving with Variable Q Response- Crossover filters with 6 dB / octave slopes up to 48dB / octave including Butterworth, Bessel, Linkwitz-Riley and customizable topologies- Gain Control, Noise Gate, Eliminator Feedback (MIC Input Only) for Input Channel- Peak and RMS compressor limiter with selectable and variable knee ratio for output channel- Automiscular functions include nom (number of open microphones) attenuation and gain sharing algorithm- Adjustable delay time up to 850 ms for each entry and output channel
• Direct PC / Network Connection:- USB connector on the front panel for direct connections to the PC- RS485 Ethernet interface for system configuration, monitoring and control via completely manageable remote PC software
• Controls: - Front interactive LCD display control panel for local access and configuration - - 4 digital inputs for a further 4 default selections with priority configuration- 4 digital output ports for the activation of external devices- DPA880XT software for Apple iPad ® device allows simultaneous control up to 32 units, setting all parameters and showing levels in real time- Optional Remote Control Marani CP4 Wall Panel Allow the selection of 4 assigned presets and control of the main volume

Technical specifications

• // Power & Amplifier Section // Number of channels: 8
• Max Output Power @ 8ohm: 8 x 125w 4 x 250W (Bridge)
• I826i
• Output circuit: Class D - Full PWM modulator bandwidth with ultra low distortion
• OUTPUT VOLTAGE: 70 VP / 140 VPP (unloaded) / Bridged 140 VP / 280 VPP (unloaded)
• THD @ rated power 4ohm (1khz): <0.05% (20 Hz - 20 kHz, (8ohm load, 3DB Below Rated Power)
• Noise signal ratio:> 120 db (weighted, 20 hz - 20 kHz, load of 8ohm)
• Frequency response: 20 Hz - 20 kHz ± 0.15 dB (8ohm loading, 1 DB Rated power below) Damping factor:> 1000 (8ohm load, 1khz and below)
• Power supply: two independent switching power supplies with PFC (Power Factor Correction)
• Ray of action: universal network, 85-265v
• Consumption / current absorption and 230V thermal dissipation: - 22.4W / -A / 76.6 BTU / H (IDLE)- 346W / -A / 286.8 BTU / H (I / 8 max. Power @ 4ohm)
• Protections: Over-Current, Over / Under Voltage, Output DC and Over-Temperatures
• Analog Input: 8 electronically balanced; Max Input Level: Line + 18DBU; Mic -18dbu
• Analog Output: 8 Electronicly Balanced; Max Output Level: + 18DBU
• // DSP & Processing // AD & DA Converters: 1x AK5385B 24bit, 2x AK4358 24bit
• DSP Engine: Dream Sam3716, 24bit (date) x 96 Bit (coeff.)
• Resolution DSP: 24 × 32 bits for the filtering process; 96 bit resolution on intermediate calculation results