01 Introduction

LD4.8 uses advanced dual-core DSP technology and supports 64-bit floating-point operations. The ADC part uses a 768Khz/32-bit high-performance audio converter. All algorithms are processed by a pair of 500MHz high-performance DSPs. Digital processing includes: gain, polarity conversion, dynamic equalizer, graphic equalizer, parametric equalizer shelf filter, time delay, frequency division, compression and signal routing. All inputs and outputs use differential balanced amplification to improve the signal's anti-interference ability and signal integrity.

Using the latest FIR digital filter design, low-pass, high-pass, band-pass and band-stop filters can be designed, which can largely achieve the extraction of required signals and suppression of unnecessary signals.

All audio interfaces use standard XLR interfaces.


02 Parameters

LD4.8 can store up to 32 presets. It is convenient for users to save and call at any time.

LD4.8 input equalizer has 15-band parametric equalization; 5-band dynamic equalization; 31-band graphic equalizer, which can largely meet various tuning needs

◎Chinese and English high-definition LCD display, intuitive function operation interface

◎Built-in signal generator, convenient for on-site debugging and sound calibration

◎Input equipped with noise gate, output compressor function

◎Independent input and output channel level indication

◎Support panel lock and engineering lock function

◎Balanced input and output XLR speakers and dedicated PC control software