RU-SM16D

RDL RU-SM16D - 4-Channel Audio Level Meter

The RDL RU-SM16D is a professional 4-channel audio level meter designed for AV installations, sound reinforcement systems, and environments requiring real-time signal monitoring. It supports line-level, speaker-level, and 25/70/100V audio signals, making it a versatile tool for AV integrators and system installers.

Each of the four inputs can be individually calibrated to accommodate unbalanced consumer signals, balanced professional sources, or constant voltage speaker lines. Rear-panel switches allow selection between fixed and variable calibration modes. In variable mode, front-panel multi-turn trimmers provide precise level adjustment.

The RU-SM16D features bright 16-segment LED indicators per channel for excellent visibility. The top three LEDs (+10, +14, +18 dBoperate in PEAK HOLD mode regardless of the selected metering type. Each meter can be configured for peak or average level display, and stereo sources can be monitored with both peak and average values simultaneously.

Functionality

• Real-time audio level metering
• Supports line-level, speaker-level, and 25/70/100V signals
• Independent calibration per channel
• Selectable peak or average metering
• PEAK HOLD mode for high-level indicators
• Mono or stereo operation

Features

• Device type: audio level meter
• Number of channels: 4 (mono) or 2 (stereo)
• Input types: line-level, speaker-level, 25V / 70V / 100V
• Calibration: variable (trimmers) or fixed (switch)
• Metering modes: peak / average
• Indicators: 16-segment LED per channel
• PEAK HOLD for +10, +14, +18dB
• Connectors: detachable terminal blocks
• Channel labeling area

The RDL RU-SM16D delivers reliable and precise audio level monitoring for professional AV systems, offering flexible configuration and high visibility in all environments.