1–2 • Introduction
MB-651 User Manual (Iss. 04)
Overview
Each MB-651 is a compact 3G/HD/SD SDI embedded audio monitoring system designed to
extract up to 16 channels of embedded audio from an SDI signal for visual and aural monitoring.
The MB-651 features an intuitive user interface to allow for easy access to the signals and
information you need to monitor.
A large vacuum fluorescent display on the front panel reports VU/PPM information, LKFS
ITU1770-3/1771 loudness measurements, and true peak measurement. Input signal format data
and mode selection information is also displayed.
Located directly beneath the display are 12 illuminated push-buttons to provide intuitive channel
source and mode selection.
Also located on the front panel is a push to mute rotary shaft encoder for volume control and a
1/4” long-frame jack for headset monitoring.
One 3G/HD/SD SDI signal can be connected to the BNC on the rear panel while a reclocked
output is available. Two 3-pin terminal block connectors also provide a stereo monitor output.
Features
The following features come standard on the MB-651:
• One 3G/HD/SD SDI input
• One reclocked SDI output
• One stereo monitor output
• Left, Right, SUM, Left Total/Right Total (Lt/Rt) downmix modes
• Push to Mute rotary shaft encoder
• High quality 1/4” long-frame headset jack
• 16 VU/PPM bar graph meters
• Provides ITU 1770-3/1771 LKFS measurements
• Provides parametric equalizer adjustment
• Class D power amplifier