Radio Design Labs RU-SM16D
4 Channel Audio Meter - Average/Peak/Hold

OUR PART #  RU-SM16D

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RDL's RU-SM16D is the ideal choice in most situations where multiple audio level metering is to be designed into a new system or added to existing equipment. It has 4 separate inputs, and each may be individually calibrated for unbalanced consumer, balanced professional, 8 Ohm speaker line, or constant voltage speaker lines (25 V, 70 V, or 100 V) with all connections made using detachable terminal blocks. A rear-panel switch selects variable or fixed calibration for 25V, 70V, 100V, and +4 dBu sources. In the "variable" position, front-panel multi-turn trimmers adjust the calibrated meter levels. Rear-panel switches let the installer set each meter individually for either peak or average audio level display. In monaural installations, it may be advantageous to feed the mono source to 2 meters, setting one meter for peak and the other meters for average. In either mode, the upper 3 LEDs (+10, +14, +18) remain in the PEAK HOLD mode. In stereo applications, each left and right channel, can display both peak and average values. Each of theRU-SM16D's 4 meters may be operated separately to monitor 4 different sources. The RU-SM16D uses bright LEDs for good visibility, and each input has a label area for easy identification of the metered source or function.

Recommended Power Supply (sold separately): PS-24AS

RDL RU-SM16D Features:

  • Precision Audio Level Metering
  • Digital 16 LED String Display Indication
  • (4) Mono Meters or Dual Stereo Metering
  • Line-Level, Speaker-Level or 25/70/100 V Audio Input
  • Selectable Fixed or Variable Calibration
  • Individual Channel Calibration Controls
  • Selectable Peak or Average Metering
  • Peak-Hold Display for +10, +14, +18 dB

RDL RU-SM16D Specifications:

  • Inputs (4): Line level or Amplified speaker level
  • Input Impedance: > 40 kO balanced or unbalanced
  • 0 dB Calibration: Fixed or Variable (switch-selectable)
  • Fixed Input Level:
    • +4 dBu (+4 switch settings, for 0 dB reading)
    • 25 V* (25 V switch settings, for 0 dB reading)
    • 70 V* (70 V switch settings, for 0 dB reading)
    • 100 V* (100 V switch settings, for 0 dB reading)
      *Constant-voltage or low-impedance (4 Ohms, 8 Ohms) amplifier output
  • Variable Input Level Range:
    • -24 dBu to +12 dBu (+4 switch settings, for 0 dB reading)
    • 2 V to 90 V* (25 V switch settings, for 0 dB reading)
    • 4 V to 90 V* (70 V switch settings, for 0 dB reading)
    • 5 V to 100 V* (100 V switch settings, for 0 dB reading)
      *Constant-voltage or low-impedance (4 Ohms, 8 Ohms) amplifier output
  • Metering Freq. Response: 20 Hz to 20 kHz
  • Indicators: 16 LEDs per channel: SIG, -20, -15, -12, -9, -6, -3, -2, -1, 0, +1.5, +3, +6, +10, +14, +18 (+10, +14, +18 are PEAK HOLD indicators only)
  • Metering Response:
    Each channel individually selectable PEAK or AVG (switch-selectable)
    • Rise Time (10% to 90%):
      • Peak Mode: 50 us
      • Average Mode: 130 ms
    • Rise Time (0% to 100%):
      • Peak Mode: 60 us
      • Average Mode: 300 ms (VU Characteristic)
    • Fall Time (90% to 10%):
      • Peak Mode: 65 us
      • Average Mode: 185 ms (VU Characteristic)
    • Fall Time (100% to 0%):
      • Peak Mode: 100 us
      • Average Mode: 300 ms (VU Characteristic)
    • Ambient Operating Environment: 0° C to 55° C
    • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 450 mA (Power supply #PS-24AS sold separately)
    • Package Dimensions: 6" x 6" x 2.625"
    • Shipping Weight: 1.325 lbs
    • WEEE weight: 1.09 lbs
    • Product Dimensions Illustration:

RU-SM16D

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Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
Mounting Bracket for RACK-UP Series
Radio Design Labs RU-BR1 Mounting Bracket for RACK-UP Series
The RU-BR1 mounts an RDL 'RACK-UP' module above or below a horizontal surface.
Usually ships in 7-14 business days.
Need it sooner? Call us!

Radio Design Labs RU-SM16D
4 Channel Audio Meter - Average/Peak/Hold

OUR PART #  RU-SM16D

Product Information:

RDL's RU-SM16D is the ideal choice in most situations where multiple audio level metering is to be designed into a new system or added to existing equipment. It has 4 separate inputs, and each may be individually calibrated for unbalanced consumer, balanced professional, 8 Ohm speaker line, or constant voltage speaker lines (25 V, 70 V, or 100 V) with all connections made using detachable terminal blocks. A rear-panel switch selects variable or fixed calibration for 25V, 70V, 100V, and +4 dBu sources. In the "variable" position, front-panel multi-turn trimmers adjust the calibrated meter levels. Rear-panel switches let the installer set each meter individually for either peak or average audio level display. In monaural installations, it may be advantageous to feed the mono source to 2 meters, setting one meter for peak and the other meters for average. In either mode, the upper 3 LEDs (+10, +14, +18) remain in the PEAK HOLD mode. In stereo applications, each left and right channel, can display both peak and average values. Each of theRU-SM16D's 4 meters may be operated separately to monitor 4 different sources. The RU-SM16D uses bright LEDs for good visibility, and each input has a label area for easy identification of the metered source or function.

Recommended Power Supply (sold separately): PS-24AS

RDL RU-SM16D Features:

  • Precision Audio Level Metering
  • Digital 16 LED String Display Indication
  • (4) Mono Meters or Dual Stereo Metering
  • Line-Level, Speaker-Level or 25/70/100 V Audio Input
  • Selectable Fixed or Variable Calibration
  • Individual Channel Calibration Controls
  • Selectable Peak or Average Metering
  • Peak-Hold Display for +10, +14, +18 dB

RDL RU-SM16D Specifications:

  • Inputs (4): Line level or Amplified speaker level
  • Input Impedance: > 40 kO balanced or unbalanced
  • 0 dB Calibration: Fixed or Variable (switch-selectable)
  • Fixed Input Level:
    • +4 dBu (+4 switch settings, for 0 dB reading)
    • 25 V* (25 V switch settings, for 0 dB reading)
    • 70 V* (70 V switch settings, for 0 dB reading)
    • 100 V* (100 V switch settings, for 0 dB reading)
      *Constant-voltage or low-impedance (4 Ohms, 8 Ohms) amplifier output
  • Variable Input Level Range:
    • -24 dBu to +12 dBu (+4 switch settings, for 0 dB reading)
    • 2 V to 90 V* (25 V switch settings, for 0 dB reading)
    • 4 V to 90 V* (70 V switch settings, for 0 dB reading)
    • 5 V to 100 V* (100 V switch settings, for 0 dB reading)
      *Constant-voltage or low-impedance (4 Ohms, 8 Ohms) amplifier output
  • Metering Freq. Response: 20 Hz to 20 kHz
  • Indicators: 16 LEDs per channel: SIG, -20, -15, -12, -9, -6, -3, -2, -1, 0, +1.5, +3, +6, +10, +14, +18 (+10, +14, +18 are PEAK HOLD indicators only)
  • Metering Response:
    Each channel individually selectable PEAK or AVG (switch-selectable)
    • Rise Time (10% to 90%):
      • Peak Mode: 50 us
      • Average Mode: 130 ms
    • Rise Time (0% to 100%):
      • Peak Mode: 60 us
      • Average Mode: 300 ms (VU Characteristic)
    • Fall Time (90% to 10%):
      • Peak Mode: 65 us
      • Average Mode: 185 ms (VU Characteristic)
    • Fall Time (100% to 0%):
      • Peak Mode: 100 us
      • Average Mode: 300 ms (VU Characteristic)
    • Ambient Operating Environment: 0° C to 55° C
    • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 450 mA (Power supply #PS-24AS sold separately)
    • Package Dimensions: 6" x 6" x 2.625"
    • Shipping Weight: 1.325 lbs
    • WEEE weight: 1.09 lbs
    • Product Dimensions Illustration:

RU-SM16D

Rack Adapter for (3) RACK-UP Series Modules
Radio Design Labs RU-RA3R Rack Adapter for (3) RACK-UP Series Modules
The RU-RA3R from RDL rack mounts (3) RACK-UP modules in fixed or mobile installations. Metal RACK-UP series products drop into the chassis, slide into position and are secured by tightening two screws provided with the RACK-UP product ...
24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
Mounting Bracket for RACK-UP Series
Radio Design Labs RU-BR1 Mounting Bracket for RACK-UP Series
The RU-BR1 mounts an RDL 'RACK-UP' module above or below a horizontal surface.
Usually ships in 7-14 business days.
Need it sooner? Call us!
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