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Radio Design Labs RU-SM16A
Dual Channel Audio Meter

OUR PART #  RUSM16A

Our Price: $250.55
List Price: $335.16
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The RU-SM16A is the ideal choice in most applications where audio level metering is to be designed into a system or added to existing equipment. The RU-SM16A has two separate inputs. Each input 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). All connections are made using detachable terminal blocks.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

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 allow the installer to set each meter individually for either peak or average audio level display. In stereo applications, either peak or average is typically selected. In monaural installations, it may be advantageous to feed the mono source to both meters, setting one for peak and the other for average. In either mode the upper three LEDs (+10, +14, +18) remain in the PEAK HOLD mode.

The RU-SM16A uses bright LEDs for good visibility. Each channel input has a label area for identification of the source or function being metered.

Features:

  • Precision audio level metering
  • Digital 16 LED string display indication
  • Two mono meters or stereo metering
  • Selectable fixed or variable calibration
  • Individual channel calibration controls
  • Selectable peak or average metering
  • Peak-hold display for +10, +14, +18 dB
  • Line-level, speaker-level or 25/70/100 V audio input

Specifications:

  • Input Impedance: > 40 kOhm balanced or unbalanced
    0 dB Calibration: Fixed or Variable(switch-selectable)
  • Fixed Input Level:
    +4 dBu (+4 switch settings, for 0 dB reading)
    25V* (25 V switch settings, for 0 dB reading)
    70 V* (70 V switch settings,for 0 dB reading)
    100 V* (100 V switchsettings, for 0 dB reading)
  • Variable Input Level Range:
    -24 dBu to +12 dBu (+4 switch settings, for0 dB reading)
    2 V to 90 V* (25 V switch settings, for 0 dB reading)
    4 Vto 90 V* (70 V switch settings, for 0 dB reading)
    5 V to 100 V* (100 Vswitch 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: 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 individuallyselectable PEAK or AVG (switch-selectable)
  • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 250 mA
  • Ambient Operating Environment: 0° C to 50° C

Click to download

Radio Design Labs RU-SM16A
Dual Channel Audio Meter

OUR PART #  RUSM16A

Product Videos:

Product Information:

The RU-SM16A is the ideal choice in most applications where audio level metering is to be designed into a system or added to existing equipment. The RU-SM16A has two separate inputs. Each input 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). All connections are made using detachable terminal blocks.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

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 allow the installer to set each meter individually for either peak or average audio level display. In stereo applications, either peak or average is typically selected. In monaural installations, it may be advantageous to feed the mono source to both meters, setting one for peak and the other for average. In either mode the upper three LEDs (+10, +14, +18) remain in the PEAK HOLD mode.

The RU-SM16A uses bright LEDs for good visibility. Each channel input has a label area for identification of the source or function being metered.

Features:

  • Precision audio level metering
  • Digital 16 LED string display indication
  • Two mono meters or stereo metering
  • Selectable fixed or variable calibration
  • Individual channel calibration controls
  • Selectable peak or average metering
  • Peak-hold display for +10, +14, +18 dB
  • Line-level, speaker-level or 25/70/100 V audio input

Specifications:

  • Input Impedance: > 40 kOhm balanced or unbalanced
    0 dB Calibration: Fixed or Variable(switch-selectable)
  • Fixed Input Level:
    +4 dBu (+4 switch settings, for 0 dB reading)
    25V* (25 V switch settings, for 0 dB reading)
    70 V* (70 V switch settings,for 0 dB reading)
    100 V* (100 V switchsettings, for 0 dB reading)
  • Variable Input Level Range:
    -24 dBu to +12 dBu (+4 switch settings, for0 dB reading)
    2 V to 90 V* (25 V switch settings, for 0 dB reading)
    4 Vto 90 V* (70 V switch settings, for 0 dB reading)
    5 V to 100 V* (100 Vswitch 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: 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 individuallyselectable PEAK or AVG (switch-selectable)
  • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 250 mA
  • Ambient Operating Environment: 0° C to 50° C

Click to download

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