Description
Product Overview
The DPA880AMT is a high performance 8 input x 8 output digital Matrix mixer. Designed for conference systems, it maintains the same characteristics as the DPA880T in addition to the Automixing function and Ducking process. It includes 8 independently switchable Line/Mic inputs with Phantom power supply, 8 Line outputs, managed by a powerful MARANI® DSP Engine, in addition to high performance 24 Bit AD/DA converters. The DPA880AMT supports a full matrix mixing mode where inputs may be routed/mixed in any ratio to any output. Each Mic/Line input channel provides Low/High-Pass 1st order filters, 3-band Parametric EQ, Noise Gate function and Gain control. In addition microphone inputs include a Feedback Eliminator function, based on a powerful “Pitch Shifting” algorithm, particularly suitable for voice applications. Automixing function automatically adjusts input level to make operating easier using either NOM (Number of Open Mics) attenuation function or Gain Sharing algorithm. In addition Ducking process enforces a “priority order” of open microphones in order that high priority inputs attenuate lower-priority inputs. Each output offers up to 5-band of parametric equalization, crossover filters, RMS compressor, Peak Limiter and configurable Delay. For remote configuration and control the DPA880AMT can be connected via Ethernet, USB or RS485 by using the control remote PC software. In addition, it can be managed by an Apple iPad® device, using the dedicated DPA880xT software setting all parameters and showing real time levels. For complex systems, 8 digital IN/OUT ports are provided for GPIO Integration. Furthermore the DPA880AMT can be connected via RS485 to the optional CP4 Wall Panel control that allows selection of 4 assigned presets and master volume control.
Technical Specifications
Audio
| Analog Input | 8 electronically balanced |
| Analog Output | 8 electronically balanced |
| Maximum Input Level | Line: +18dBu; Mic: -18dBu |
| Maximum Output Level | +18dBu |
| THD+N | 0.005% at 1kHz 0dBu |
| S/N | >104dBA |
| Frequency Response | 20Hz – 20kHz +/-1dB |
| AD & DA Converters | 24bit |
DSP & Processing
| DSP Engine | MARANI® DSP, 24bit (data) x 96 bit (coeff.) |
| DSP Resolution | 24×32 bit for filtering process 96 bits resolution on intermediate computation results |
| Input Equalization | 3-band parametric selected as Peaking or Low/High Shelving with variable Q per input channel Low/High Pass 1St order filter per input channel |
| Output Equalization | 5-band parametric EQ selected as Peaking or Low/High Shelving with variable Q per output channel |
| Filter Gain | From -12dBu up to +12dBu by 0.5dBu resolution steps |
| Center Frequency | Selectable with a 1/24th of octave resolution step from 20Hz up to 20kHz |
| Filter Q/BW | Q from 0.4 up to 10 by 0.1 resolution steps |
| Crossover Section HPF/LPF | Butterworth 6/12/18/24dB per octave Bessel, Linkwitz-Riley and custom 12/24dB per octave Filter resolution 1/24th of octave |
| RMS Compressor and Peak Limiter | Threshold from 18dBu up to -30dBu Attack time from 5ms up to 200ms (1ms resolution up to 20ms, 10ms resolution up to 100ms and 20ms resolution up to 200ms) Release time from 0.1 sec up to 3 sec (0.1sec resolution) Ratio from 1:1 to 32:1 (Compressor only) Adjustable Soft or Hard Knee (Compressor only) |
| Delay | 848,998 ms 21us increment/decrement steps per channel |
| Feedback Eliminator | Pitch Shifting algorithm only for Mic input channels |
| Automixing Functions | NOM attenuation, Gain Sharing algorithm and Priority Ducking processing |
General
| Device Presets | 6 User Presets + 4 by using S1-S4 digital input ports |
| Front Panel | 2×24 character LCD display with white/blue LED backlight 6-LED status indicators per channel (Line, Mic, FBK, Signal, Clip, Limiter) 1-LED indicator Phantom Power 6 x preset selection push button switch USB type B connector |
| Rear Panel | 2 x 12 pin Phoenix connector (Mic/Line Inputs) 2 x 12 pin Phoenix connector (Line Outputs) 2 x 4 pin Phoenix connector (S1-S4 digital input ports – TTL level 0-5V) 2 x 4 pin Phoenix connector (S1-S4 digital output ports – TTL level 0-5V) 2 x RJ45 for RS485 In/Out connection 1 x RJ45 connector with activity LEDs for Ethernet connection (10/100 TCP-IP) IEC C13 16A connector; Power on /off switch |
| Optional Device | Marani® CP4 Wall Panel control |
| Main AC | 90-240VAC (50/60Hz) – 40W |
| Dimensions | 19”x 1.75”x 9” (483x44x229mm) 1RU |
| Weight, Net / Shipping | 7.71 lbs (3.5 Kg) / 8.82 lb (4 Kg) |
