Product Overview
The MA-1851 is an audio decoder that supports MPEG-4 AAC audio input.
HDMI×1 MPEG-4 AAC 22.2ch/5.1ch/2ch audio signals can be decoded and output through HDMI×3 or MADI×1.
Makes it easy to construct a 22.2 Ch acoustic system.
Features
●Can decode MPEG-4 AAC 22.2ch/5.1ch/2ch
●Automatically tracks the input audio mode
●Supports ARC/eARC input
●Supports HDMI(8ch)×3 output and MADI (24ch)×1 output
●Audio output delay function
●Displays input status and an audio level meter
Connection Example
Specifications
| HDMI Input | ||
|---|---|---|
| Number of Systems | 1 system | |
| Video | Connector | Compatible with HDMI Type A |
| Compliant Standard | HDMI 1.4（1920×1080 60p/59.94p） | |
| Color Format | RGB 4:4:4 8bit | |
| Audio | Compliant Standard | MPEG-4 AAC |
| Sampling Frequency | 48 kHz/96 kHz | |
| Audio Mode | 22.2-channel, 5.1-channel, stereo | |
| Other | EDID function not supported, HDCP not supported | |
| HDMI Output | ||
|---|---|---|
| Number of Systems | 4 systems (One channel supports 22.2 channels, 5.1 channels, and stereo ARC/eARC.) | |
| Video | Connector | Compatible with HDMI Type A |
| Compliant Standard | HDMI 1.4（1920×1080 60p/59.94p） | |
| Color Format | RGB 4:4:4 8bit *Fixed pattern output | |
| Audio | Compliant Standard | Linear PCM |
| Sampling Frequency | 48 kHz | |
| Number of Audio Channels | 8ch | |
| Other | HDCP not supported | |
| MADI Output | |
|---|---|
| Number of Systems | 1 system |
| Connector | BNC 75Ω |
| Format | AES10-2008 |
| Data Length | 24 bit |
| Sampling Frequency | 48 kHz |
| Number of Audio Channels | 24 channels |
| Delay Amount | |
|---|---|
| Delay Amount | Device delay 40ms + Delay Time Set value 0-100 ms |
| General Specifications | |
|---|---|
| Power-Supply Voltage | AC100-240V（50/60Hz） |
| Power Consumption | 35W MAX |
| Operating Temperature Range | 5～40℃ |
| Operating Humidity Range | 20 to 80% (No condensation) |
| External Dimensions | 430（W）×44（H）×250（D）mm (excluding protrusions) |
| Weight | 2.5㎏ |
