Processeur audio numérique Paulkitson LD448 avec contrôleur de haut-parleurs professionnel 32 bits et 4 entrées/8 sorties

Paulkitson Professional Digital Audio Processor Driverack LD448 High-Performance Digital Dsp Processo With Fir Loudspeaker Control System This is a high-performance digital DSP processor, supporting multiple analog signal routing, users can connectthe machine through UsB or intranet IP and other ways to control the upper computer, simple and friendly PCsoftware interface is more intuitive, easy to understand the way presented to the user operation. The CPU uses the ADSP-21571 digital audio processing chip from ADl Corporation of the United States. a dual.core SHARC+DSP processor based on Arm Cortex-A5 high-performance floating point core architecture, andsupports 64-bit floating-point optimization FlR and lR algorithms. The A/D part uses Ak5552 analog-to-digitalconversion chip, which supports 32-bit 768Khz sampling rate and differential filter circuit input designeffectively ensuring the high resolution and noise filtering of the input signal, and has a professional-grade118dB siana-to-noise ratio, which effectively inhibits the background noise of the dicital audio processing circuit FUNCTIONAL CHARACTERISTICS Maximum support 4 input, 8 output 15-segment parametric equalizer 31-segment graphic equalizer 5-segment dynamic equalizer ◆512-order FlR filter Support includes: gain/phase/mute, channel level indication, delay, pressure limiter, noise gate, channel routingFlR filter, marshalling, channel replication, noise/signal generatorSupport RS232 serial port protocol external control Can be connected to PC host software via USB or RJ45 LAN for control TECHNICAL PARAMETERS Frequency response (20Hz-20kHz@+4dBu): +0/-0.3dB Total harmonic distortion (20Hz-20kHz@+4dBu): <0.003% Signal-to-noise ratio: 110dB A-weighted Noise floor: <-90dBu Dynamic range (20Hz-20kHz, 0dB): >116 dB Maximum gain (input to output): 48dB Maximum delay (input to output): 750ms Channel separation (between channels@1kHz): >80dB Common mode rejection ratio: 60Hz>100dB@+20dBu Input impedance (balanced/unbalanced): Bal:20K / Unbal:10K Output impedance (balanced/unbalanced): Bal:100ohm / Unbal:50ohm Maximum input level: +20dBu Maximum output level: +20dBu Input gain range (adjustable) ：-80dB ~ +12dB Output gain range (adjustable) ：-80dB ~ +12dB A/D chip: AK5552 A/D sampling rate: 768kHz A/D converter bit width: 32bit D/A chip: AD1955 D/A sampling rate: 192kHz D/A converter bit width: 24bit DSP chip: ADSP-21571 DSP main frequency: 500Mhz DSP bit width: 32/40/64-bit floating point dual-core SHARC+ ARMCortex-A5TM core Power consumption: 220V 22 watts/ 110V 11 watts