29/11/2025
LAB-GREEN DSP PROCESSOR DSM48+
The LC series digital audio processor is a high-performance digital DSP processor that supports multi-channel analog signal routing. Users can connect the machine through USB or intranet IP for host computer control. The simple and friendly PC software interface is more intuitive and easy to use. Present it to users in an understandable way.
The input channel has 5-band DEQ, 31-band GEQ, and 15-band PEQ. The output channel has 15-band PEQ and FIR functions. The channel is equipped with an adjustable compressor and noise gate. The built-in 30 factory presets are suitable for one-click layout of most audio systems. , users can also customize the save and call. The PC software is equipped with a signal generator to facilitate on-site speaker debugging and calibration.
The CPU adopts the ADSP-21571 digital audio processing chip of the American ADI Company, a dual-core SHARC+DSP processor based on the Arm Cortex-A5 high-performance floating-point core architecture, supporting 64-bit floating-point optimized FIR and IIR algorithms; A/D part Using the AK5552 analog-to-digital conversion chip, it supports 32-bit 768Khz sampling rate, and the differential filter circuit input design effectively ensures the high resolution and noise filtering of the input signal. It also has a professional-level 118dB signal-to-noise ratio, which effectively suppresses the inherent nature of the digital audio processing circuit. Noise floor problem
, the DAC decoding part uses the AD1955 chip, 24bit, 192KHz master-level audio format output, 120dB high signal-to-noise ratio, which can meet the current use of various mainstream audio source playback.
Frequency response (20Hz-20kHz@+4dBu): +0/-0.3dB
Total harmonic distortion (20Hz-20kHz@+4dBu): 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 frequency: 500Mhz
DSP bit width: 32/40/64-bit floating point dual-core SHARC+ ARMCortex-A5TM core
Power consumption: 220V 22 watts