Description
MDA8-750PS is a highly flexible, powerful and intelligent 8-Channel power amplifier delivering up to a total of 8x750W @4 ohm, and able to drive 70V/100V Constant Voltage Lines, in Direct Drive without using internal transformers. Moreover, output channels can become 4 setting in BTL mode pairs of channels, each one delivering up to 1500W @8ohm per channel. Designed to meet the most demanding portable and fixed installation sound systems, it provides a full set of high value features such as high output power, efficient cooling system, on board DSP and USB/Ethernet for monitoring and control via PC software.
MDA8-750PS includes a highly efficient Switch Mode Power Supply, which provides power to the output stages. The 8 (4 if set the BTL mode on pairs of channels) output stages use Class D Power Amplifier Module obtaining ultra low distortion, high efficiency and also equipped with a full set of circuit protections. Furthermore the Clip/Limiter function provides output monitoring to prevent speaker damage with gentle gain reduction at clip threshold, in addition to the efficient heat dissipation system which themselves ensure uncompromised reliability.
MDA8-750PS is more than just an amplifier. It is also a capable and sophisticated loudspeaker processor, thanks to its powerful pair of MARANI® DSP running 96kHz/24bit [96 bits precision for the internal intermediate processes] and high performance 24bit AD/DA Converters. It offers 8 channels of slope up to 48dB/Oct IIR HP/LP crossover filters, or up to 512 taps FIR filters [FIR Coefficients can be imported as .txt/.csv from external application], RMS compressor, parametric Eqs, alignment delay, white/pink noise internal generator, everything needed to optimize a loudspeaker system.
Moreover, MDA8-750PS allows a 12dB headroom on processes overflow. User can also set the parameters, select input source, load presets, etc with the extraordinary touchscreen LCD in front panel. Apart from regular analog and digital source input, DANTE is also optional.
| Outstanding Performance | High power output：8x750W@4ohm / 8x350W@8Ω BTL power output：4 x 1500W @ 8ohm(BTL) or 70V/100V Direct Drive Highly efficient Switch-Mode Power Supply Class D Amp module-full bandwidth PWM modulator with ultra low distortion Full protection circuitry including Over-Current, Over/Under-Voltage, Output DC and Over-Temperature Support DANTE™ audio (optional) Excellent sonic performance with 24bit high end converters coupled with 96kHz sample rate |
| Top-grade DSP Engine | 12 band parametric equalization per input channel 4 band parametric equalization per output channel Each band can be switched to Bell, Low/High Shelving variable Q Warm Backup is available, by setting source priority and activating "Auto switch" function in PC Sw FIR or IIR Filters for X-Over: The X-Over can be implemented both by FIR filters or IIR HP/LP,sortable in the dedicated PC software FIR: Crossover filter can be created by the user selecting from 256 up to 512 taps, the FIR type and the Out Band attenuation FIR Coefficients can be imported as .txt file from external applications IIR: Crossover filter with slopes from 6 ~ 48 dB/Octave, including Butterworth, Bessel, Linkwitz-Riley and customized configurations. Each output channel is equipped with a precious Peak Limiter with sortble ratio, attack/release time Adjustable Delay time up to 500.998ms for input channel, and 340.998ms for output channel Each input channel includes a Pink/White noise internal generator, noise gate function, RMS compressor with variable knee, and powerful 12-band PEQ |
| Direct PC/Network Connection & Control | Front panel USB connector for direct PC communications Ethernet interface and M-LAN connection for system setup, monitoring and control via manageable remote PC software Front panel interactive touchscreen LCD display for parametric setting, input source selection,preset loading (up to 50 Presets are available) and so on Simultaneous control up to 32 units via PC software |
Power & Amplifier section
| Number of Channels | 8 |
| Output Power | 8 x 750W @ 4ohm / 8 x 350W @8ohm BLT:4x1500W@8ohm or 70V/100V Direct Drive |
| Output Circuitry | Class D Amp Module- full bandwith PWM modulator with ultra low distortion |
| THD + N | 1% @ maximum output power |
| Frequency Response | >108 dB (A-weighted, AES-17 filter) |
| Power Supply | independent Switch mode Power Supply |
| Operating Range | 90 - 245 VAC (50/60Hz) |
| Protections | Thermal, Short-circuit/Overload, Clip Limiter, Permanent Signal Limiter, High Frequency |
| Maximum Input Level | +13dBu |
| Maximum Output Level | +6dBu |
| Analog Input | 8 x 3pin terminal electronically balanced, +13dBu |
| Frequency Response (DSP) | 20 Hz - 20 KHz; -0.5dBu at 20 Hz and 20 kHz |
DSP & Processing
| DSP Engines | 2 x MARANI® M716 DSPs |
| DSP Resolution | 24 bit (data) x 32bit (coeff.), 54 bit accumulation registers 96 bit precision on intermediate processing data |
| Parametric Equalization | 12 band parametric equatlization per input 4 band parametric equalization per output filter gain range from -15 to +15 dBu |
| FIR for Phase Correction | Asymmetrical 512 Taps, allowing also FIR latency Adjustment/reduction. Coefficients can be generated by Pc Sw embedded Wizard tool, imported by external third party applications,and exported to third parties applications |
| Filter Type | Bell, Shelving, HP/LP, Band Pass, Notch Filter, All Pass |
| Filter Gain | From -15dBu up to +15dBu by 0.5dBu resolution steps |
| Center Frequency | Sortable with a 0.5dBu resolution step from 20Hz up to 20kHz |
| Filter Q/BW | Bell: Q from 0.4 up to 128, steps: 100 Shelving: Q from 0.1 up to 5.1, steps: 100 Bandpass/Notch: Q from 4 up to 104, steps: 100 |
| Input&Output Gain | -12dB ~ +12dB, resolution: 0.1dBu |
| IIR Crossover section HPF/LPF | Butterworth 6/12/18/24/36/48dB per octave; Bessel 12/24dB per octave; Linkwitz-Riley 12/24/36/48dB per octave. |
| FIR Crossover section HPF/LPF | Hp/Lp/Bp filters, Taps from 256 up to 512, Attenuation up to -120dB, Window type as Rect / Sinc / Keiser / Hanning / Hamming / Blackman / Nuttal / Sine |
| Noise Generator | Type: White/Pink Noise; Level: -40dBu ~ 0dBu |
| Input RMS Compressor | Threshold from -16dBu up to +14dBu; Ratio: 2:1~32:1; Knee: 0~100%; Attack time from 5ms up to 200ms; Release time from 0.1sec up to 3sec |
| Output Peak Limiter | Threshold from -16dBu up to +14dBu; Attack time from 1ms up to 900ms; Release time from 0.1sec up to 5sec |
| Head room on Internal Overflow Process |
12dB Headroom |
| Delay | Each input has up to 500.998ms delay, each output has up to 340.998ms delay |
| Ground Noise | -86 dBu |
General
| Device Presets | 50 |
| Front Panel | LCD display with Touchscreen Function 1 x Blue LED (Power) 1 x Rotary encoder push button switches USB type B connector |
| Rear Panel | 2 x 12 pin Phoenix connector (Analog Input) 2 x 6 pin Phoenix connector (Digital Input) 8 x 2 pin Phoenix connector (Output) 2 x Ethernet 10/100 TCP-IP (Dante™ Audio Signal: optional) 1 x Ethernet 10/100 TCP-IP (ETHERNET PC Control) 1 x Locking PowerCON® 20A: AC Power Cord (Blue) 1 x 80*80 mm 24V FAN |
| Dimensions | 482X453X88（mm） 2RU |
| Package size | 640*600*160 mm |
| Weight, Net / Shipping | 11.50 Kg / 15.00 Kg |
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