4-input 8-output with fir filter function digital processor audio

4-input 8-output with fir filter function digital processor audio

Model: LA448

Item specifics

Number of Channels: 4 input 8 output

Voltage: AC90V-AC250V

function: FIR filter function

Output equalization: 16 segments per channel

Review

Description

Specifications	Parameter
Frequency response	±0.2dB10Hz-25kHz
THD+N	<0.005%@10Hz-25KHz
SNR	>118dB at 1% THD+N 10Hz-25KHz
Maximum input level	+20dBu /7.775Vrms
Maximum output level	+20dBu /7.775Vrms
Gain range	- 80dB to + 12dB per channel
Input impedance	>10K ohm. XLR input
Output impedance	< 60 ohms. XLR output
test signal	Independent sine wave / white noise / pink noise for each channel is optional.
Input equalization	12 sections (parameter / high / low rack / all pass) + 3 sections dynamic equalization
Extender	Threshold / ratio / start time / recovery time adjustable
High pass type	Ningke / Bessel / Bart 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48
Low pass type	Ningke / Bessel / Bart 6 / 12 / 18 / 24 / 30 / 36 / 42 / 48
Adjustable delay	1200ms / accuracy 0.01ms for each channel
Group delay	2.8ms@96KHz / 1.2ms@192KHZ
Output equalization	16 segments per channel, supporting parameters / high / low frame / all pass filter
Output FIR	Low pass / high pass / band pass direct setting, coefficient support import / export
DRC dynamic control	Clipping (peak or RMS value) + compression
Volume / mute control	Direct panel knob, total volume and mute control
Phase control	Input / output: 0 / 180 degree flip per channel
Online control	Three online modes of USB / WiFi / RS485 central control
Level meter	Dynamic indication of display level
Power range	85V-260V 50Hz-60Hz
weight	Net weight: 3.6kg, gross weight: 5.2kg
Overall dimensions	(46 x 482 x 250mm), excluding interface

FEATURE：

A. 96KHz / 192Khz sampling rate switching, with both functions, brings more application scenarios. B. Dynamic equalizer is automatically optimized for large signal or small signal. C. FIR filter can perfectly correct the phase distortion caused by system parameter adjustment. D. The delay of each channel is up to 1200ms, and the precision is optimized to 0.01ms with the fine adjustment of sound field or phase. E. 4-way input and 8-way output, complete routing assignment, can be set to multiple working modes. F. Color LCD display, real-time dynamic level display, Chinese and English interface optional. G. One key mute and global total volume control. H. Equipped with WiFi / RS485 central control and drive free USB control interface, which can be adjusted by the control software at the PC.