Dorrough 20-A Analog Loudness Meter

Dorrough 20-A Analog Loudness Meter

The 20-A is a 1 RU straight-line standard loudness meter with a scale allowing 14dB of headroom in 1dB steps from +14 to -25. The unit is 1/2 rack space wide and requires a rackmount adapter (sold separately).

Dorrough 20-A Includes:

• 20-A Analog Loudness Meter

Dorrough 20-A Features:

• Color LED meter display
• Two peaks and hold functions: 3-second auto-reset and hold until reset
• Two audio channel inputs to monitor stereo phase
• Phase warning light with access to a full-scale correlator via the 3-positions switch.
• “Dorrough Window” automatic mode for fast and easy verification of reference level
• Alarm function can be set to trigger remote alarm device if:
  • Audio levels are too low to cause a display for a 2-minute period
  • Program level is a full scale or greater for one or more sample periods
  • Stereo phase error
• Includes external power supply

Dorrough 20-A Specifications:

• Inputs: Phoenix/Euroblock
• Alarm Output: 8-pin mini DIN (also used for optional RW-100 remote connection)
• Power Input Connector: Mini Euroblock
• Dimensions (WxHxD): 8.5” x 1.75” x 3”
• Weight: 0.5 lb.
• Optional rackmount adapters: 20S for a single unit, 20D for 2 units