PLL-Series processor

PLL-3060

PLL-4080

Product introduction:

This device is a high-performance digital audio processor with a sampling rate of 48K. It uses a 32-bit ADC/24-bit DAC analog-to-digital/digital-to-analog conversion chip and a high-speed processing DSP chip to collect and process audio. It supports 4 analog inputs and 8 analog outputs. Each input and output channel supports 11-band parametric equalizers, equipped with high-pass and low-pass filters, all-pass filters, signal generators, noise gates, gain control, input compression, output limiting, scene presets, and adjustable delays of up to 2000ms per channel. It is equipped with a 100M network port and RS-232 for fast configuration and debugging. It performs a series of optimizations and adjustments for high-quality sound reinforcement systems.

Features:

●32-bit DSP chip processing, sampling rate 48KHz, 32-bit ADC and 24-bit DAC;

●Input processing includes: port input, noise gate, gain control, mute, phase, 11-band equalization, frequency division, input compression, 2000ms input delay and linkage adjustment and other processing functions;

●Output processing includes: 11-band equalization, 2000ms output delay, gain control, mute, phase, Frequency division, output limiting, port output and linkage adjustment and other processing functions;

● All inputs and outputs can be freely routed, and the name of each input and output channel can be changed;

● All input and output channels have independent phase curve adjustment function;

● All input and output channel parameter settings can be freely copied;

● All input and output channels can be automatically EQed by importing channel parameters;

● Equalization types include: peak, notch, first-order all-pass, second-order all-pass, high shelf and low shelf;

● All input and output channels have high and low pass filters, the types of frequency dividers are: Butterworth, Bessel, Link-Rayleigh, and the slopes are: 6/12/18/24/30/36/42/48dB/Oct optional;

● All input compression includes: threshold, ratio, attack time, recovery time and compensation gain Adjustable gain;

● All output limiters include: adjustable threshold and recovery time; brick wall limiter, start time is 0, absolute limiter;

● All input and output channels have adjustable delays up to 2000ms;

● Built-in test signal generator, input mode optional pink noise, white noise, sweep frequency and 20Hz-20kHz sine wave adjustable, signal amplitude adjustable;

● The front panel has input and output level indicators, function buttons, the rear panel has RS232 control port and 100M network port connection, ● One-button connection makes user operation easier and faster;

● Support 32 scene saving, the entire scene algorithm and each preset can be stored and called separately, and it also has permission management function to make the device safer;

● Application occasions: professional performances, bars, conference rooms, courts, auditoriums, multi-function halls and other scenes

Technical parameters:

Model: PLL-3060/PLL-4080

Sampling rate: 48KHz

Analog input/analog output: 3 in 6 out/4 in 8 out

Input impedance: 10KΩ balanced/20KΩ unbalanced

Output impedance: 50Ω balanced/100Ω unbalanced

Frequency response: 20Hz – 20KHz±0.1dB

Default output level: 0dBu

Maximum input/output level: 18dBu

THD+N distortion: ≤0.002% @ 4dBu20Hz-20KHz

System delay: ≤1.7ms

Maximum noise floor: -92dBu

Dynamic range: ≥110dB

S/N signal-to-noise ratio: ≥110dB

Input/output equalization: 11 segments

AD & DA conversion: 32-bit ADC/24-bit DAC

All-pass filter: Yes

DSP processing: Using TI's OMAP-L138 high-performance DSP, the computing power is up to 3648 MIPS and 2746 MFLOPS has multiple built-in audio algorithms, with a sampling rate of 48KHz

Parametric equalizer: input and output channels support up to 11 bands of equalization

6 filter types: peak, notch, first-order all-pass, second-order all-pass, high shelf, low shelf

Filter gain range: -30dB ~ +30dB, step accuracy: 0.1dB

Input/output gain range: -72dB ~ +12dB, step accuracy: 0.1dB

Center frequency: adjustable in 1Hz step accuracy within the frequency band of 20Hz~20kHz

Filter Q value/bandwidth: peak, notch, second-order all-pass, Q value: 0.18 ~ 144.27

High and low pass filter: Butterworth slope: 6/12/18/24/30/36/42/48dB/Oct,

Bessel slope: 6/12/18/24/30/36/42/48dB/Oct,

Linkwich-Rayleigh slope: 12/24/36/48dB/Oct

Input noise gate: Threshold range: -100dBFS ~ 0dBFS

Attack time: 1ms ~ 1000ms;

Recovery time: 1ms ~ 1000ms

Input compression: Threshold range: -84dBFS ~ 0dBFS

Ratio: 1 ~ 20,

Attack time: 1ms ~ 1000ms

Recovery time