8x8 Digital Audio Processor with RS-232, TCP/IP and PC program control
and engineering support
Overview
The BG-AU88-MA is a powerful DANTE-equipped audio mixer equipped with 4 microphone input channels, 6 line input channels, 10 line output channels, and a DANTE output. Packed with useful features like full-band Adaptive Echo Cancellation (AEC), Adaptive Noise Suppression (ANS), Automatic Gain Control (AGC), and auto-mixing, this audio processor outputs clear, clean, and detailed audio with a high signal-to-noise ratio.
Connectivity & Features
The BG-AU88-MA is compliant with HDMI 2.0b and can process HDMI audio. It also features an HDMI loop-out and supports HDMI audio embedding and de-embedding. This device also has a 48V phantom power supply for the four microphone input channels. The inclusion of a DANTE port enables connectivity for networked audio distribution systems.
Thanks to dynamic adaptive noise reduction technology, noise can be reduced at signal levels up to 18 dB, ensuring that sound is clear with less background hum and fuzz. Combined with Automatic Gain Control and Adaptive Echo Cancellation, the BG-AU88-MA is able to achieve a high signal-to-noise ratio.
Control
Each of the analog I/O channels has a volume knob allowing operators to control volume independently for each channel. The auto-mixer function enables operators to set the priority order when multiple microphones are in use at the same time. The powerful suite of digital signal processing modules include a compressor, expander, equalizer, auto gain control, limiter, high pass filter, low pass filter, and delay for each channel of audio. Volume control, signal meter, and scene control functions round out this premium mixer’s robust set of features.
Operators also have the ability to switch to matrix routings when needed. The BG-AU88-MA is controlled using the included software supporting Windows systems via the LAN connection. RS-232 serial control is also supported.
Features
-
Audio MatrixRoute any input to any output -
Dante SupportConvert analog and HDMI audio sources to Dante -
High-Quality Audio24-bit ADC and DAC, 48KHz sampling -
DSPExpander, EQ, Compressor, Auto-Gain, Limiter, HPF, LPF, and Delay for each audio channel -
Phantom Power48V power for each mic input -
Control Software includedFull control of all parameters with a Windows 7/10 PC
- HDMI 2.0b compliant
- Provide 4-ch balanced MIC inputs, 6-ch balanced linear inputs and 10-ch balanced linear outputs
- Support HDMI audio signal input, loop out, audio embedding and de-embedding
- Provide a standard DANTE network audio interface
- Support adaptive feedback suppression function
- Support the full-band adaptive acoustic echo cancellation technology
- Dynamic adaptive noise reduction technology is provided to reduce noise with signal level up to 18dB
- Auto Mixer function is provided to set the order of priority when multiple microphones are input at one time
- Inclusive of Digital signal processing modules such as Expander, Equalizer, Compressor, Auto Gain Control, Limiter, High Pass Filter, Low Pass Filter and Delay
- Support volume control, meter, scene control, etc.
- Capable to switch matrix routings
- 48V phantom power supply for 4-ch MIC inputs
- 48 KHz sampling rate, 24-bit for A/D or D/A conversion
- Separated I/O volume knobs
- Support monitoring function
- Compatible to run on Win 7 and Win 10, with standard RJ45 interface control
- Support RS-232 serial commands control
Tech Specifications
| Technical | |
| HDMI Compliance | HDMI 2.0b |
| Amplitude-frequency (20Hz~20KHZ@+4dBu) |
MIC input: -0.5 / -0.5dB Linear input: -0.2 / -0.2dB |
| THD+N (1KHZ@+4dBu) | ≤ 0.01% |
| EIN (MIC input) | ≤ -125dBu |
| SNR (linear input) | ≥ 90dB |
| Dynamic Range | ≥ 100dB |
| Channel Level Difference | -0.5 / -0.5dB |
| Channel Isolation | ≥ 80dB |
| Channel Phase Difference | ≤ 0.5° |
| Max Input Level | 20dBu |
| Max MIC Gain | 40dB |
| Input Impedance | 20KΩ |
| Output Impedance | 300Ω |
| Sampling Frequency | 48KHZ |
| A/D and D/A Conversion | 24Bit |
| Phantom Power | +48 VDC |
| Connection | |
| Inputs | 4 x Balanced MIC [3-pin phoenix connector] 6 x Balanced LINE [3-pin phoenix connector] or 3 x Stereo Audio [3-pin phoenix connector] |
| Outputs | 10 x Balanced LINE [3-pin phoenix connector] or 5 x Stereo audio [3-pin phoenix connector] 1 x Stereo audio [3.5mm L/R] |
| Controls | 1 x LAN [RJ45] 1 x RS-232 [3-pin phoenix connector] |
| Digital Audio Interfaces | 1 x HDMI IN [Type A 19-pin female] 1 x HDMI OUT [Type A 19-pin female] 1 x Dante [RJ45] |
| Mechanical | |
| Housing | Metal Enclosure |
| Color | Black |
| Dimensions | 19"(W) x 9.8"(D) x 1.8"(H) [482mm (W) x 250mm (D) x 45mm (H)] |
| Weight | 6.39 lbs [2.9kg] |
| Power Supply | AC 100 - 240V 50/60Hz |
| Power Consumption | 11W(Max) |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Relative Humidity | 20~90% RH (non-condensing) |
Resources
PACKAGE CONTENTS
- 1 x Digital Audio Processor
- 1 x AC 100~240V 50/60Hz Power Cord
- 22 x Phoenix Connector (3-pin, 3.81mm)
- 1 x User Manual
Interfaces
- INPUT VOLUME: Knobs to control the volume of MIC and linear inputs. Use a screwdriver in the clockwise direction to turn up the volume; counterclockwisely to turn it down.
- Power LED: When the device is powered on, the red LED will light on.
- STATUS LED: When the device runs normally, the green STATUS LED will flash.
- HEADPHONE: 3.5mm headphone listening port.
Note: this listening port outputs the same audio as OUTPUT LINE 5. If you want to enable the listening function, you need to select the corresponding input channel in the AUTO MIXER module. - OUTPUT VOLUME: Knobs to control the volume of linear outputs. Use a screwdriver in the clockwise direction to turn up the volume; counterclockwisely to turn it down.
- INPUT: 4-ch MIC inputs and 6-ch balanced linear inputs, used for connecting audio source devices via phoenix connectors.
- OUTPUT: 10-ch balanced linear outputs, used for connecting Amplifier or Speaker via phoenix connectors.
- HDMI INPUT: HDMI signal input port, used for connecting HDMI source device via HDMI cable.
- HDMI OUTPUT: HDMI signal output port, used for connecting HDMI display device via HDMI cable.
- DANTE: Standard DANTE network audio transmission interface.
- RS-232: Used for connecting PC or control system via phoenix connector. RS-232 (1) is used for transmitting RS-232 control commands; RS-232 (2) for firmware upgrade.
- LAN: Standard RJ45 interface for network connection.
- BOOT 2-PIN DIP Switch: Used for firmware upgrade.
Note: it can only be used when the device is in factory. Both 2 pins should be switched to “1” when the device is in service; if not, the device won’t kick off. - DIP Switch: Function reserved.
- Power Switch & Power Port: Power switch and AC 100-240V power input port.
