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PMM88A

PMM88A.jpg


★ Multifunctional digital processors with integrated gain, noise gate, matrix, automatic mixing, feedback suppression, equalization, voltage limiting, and delay

★ 8-channel analog audio balanced input, 8-channel independent analog audio balanced output

★ All inputs have MLS technology (Mic/Line input Switching Technology) to support various microphone signal inputs and music signal inputs. Each input setting can be manually adjusted by software or panel LCD display menu

★ Equipped with AEC adaptive acoustic echo cancellation function, 6-level tail length effect adjustment, suitable for interactive recording, remote conference, and teaching applications of various sizes, restoring clearer voice communication

★ Equipped with ANC adaptive active noise cancellation function, 4-level intensity adjustment, meeting the local recording and broadcasting needs of different scenes, improving the signal-to-noise ratio of recording and amplifying, and recording clearer voice signals;

★ All microphone inputs are equipped with 9-level sensitivity adjustment 0-35dB gain, and a 48V phantom power switch, which can match various types of microphones with different sensitivities;

★ Built in white noise, Pink noise and sine wave three different test signal sound sources, which can be used as various system detection sound sources;

★ All input bands have AFC technology (Active Feedback Cancellation Technology) active feedback suppression function, with two speed adjustment

★ Equipped with an AUTOMIX shared gain automatic mixer, with independent adjustment for each channel, with 10 priority levels, adjustable slope and response time, achieving automatic switching between microphones, between microphones and music signals, and between music signals. When turned on, it can also reduce noise, improve signal-to-noise ratio, and reduce whistling phenomenon;

★ Built in powerful matrix mixing function, fully open architecture, free setting, each mixing channel can also independently adjust the mixing amount, making matching gain more convenient, and intuitively viewing and debugging signal routing situation;

★ All input 31 segment PEQ, all output 10 segment PEQ are adjustable, with high and low frames and All-pass filter, input and output are equipped with 48 order high and low pass dividers, and the debugged parameters can be saved and copied to other channels independently, which is convenient to adjust the audio system in all directions

★ Equipped with video tracking control function, RS232/485 interface, supporting camera control PELCO-D/PELCO-P/VISCA and other protocols

★ Standard USB (TYPE-B) port, one port with three functions: support for automatic connection software debugging without drive; Built in USB flash drive function, storing software and instructions; Equipped with USB sound card. ★ Support for mobile app TCON software network control

★ Support 4-inch touch screen wire control

★ Support archive locking to avoid misoperation or human disturbance of processor parameters, and maintain system stability; Archive supports startup file settings, which can be set from


Technical indicators

1. DSP chip:

Signal processing: 32 bit floating point DSP 400MHz

Audio system delay:<2ms

Digital to analog conversion: 24 bit


2. Analog audio input and output:

Input channel: 8 balanced inputs Mic/line level in

Audio interface: 3.81 mm Phoenix socket, 12-pin

Input impedance: 11.5K Ω

Maximum input level: 12dBu/Line, -7dBu/Mic

Phantom power supply:+48VDC, 6.5mA, independently configured for each channel

Output channel: 8 balanced outputs, line level out

Output impedance: 150 Ω


3. Audio metrics:

Frequency response curve: 20Hz-20kHz (+-0.5dB)/Line

20Hz-20kHz (+-1.5dB)/Mic

THD+N: -90dB (@ 12dBu, 1kHz, A-wt)/Line

-86dB (@ -7dBu, 1kHz, A-wt)/Mic

Signal to noise ratio: 105dB (@ 12dBu, 1kHz, A-wt)/Line