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Rolls HRD342 Digital Room/Speaker Delay Unit with 32 ms to 360 ms Delay Time Adjustment

Rolls Digital Room and speaker delay with time adjustment

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What's in the box:

  • Rolls HRD324 Digital Room/Speaker Delay
  • PS27s 15 VDC 100-240 VAC Wall Power Adapter
  • Limited 1-Year Warranty

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If you're in need of a simple and low-cost solution for time aligning speakers in larger rooms or outdoor applications, The Rolls HRD342 digital room/speaker delay unit has exactly what you're looking for. The large delay dial on the front features a range of delay times from 32 to 360 milliseconds, which roughly correlates to the distance in feet to the speakers (32 ms = approx. 32 ft). Insert the HRD432 between the main console output and the amplifiers supplying the delayed signal to the speakers in a passive setup, or connected between the console and the input of the speaker in a powered setup — either way, you're ensuring that the signal is consistent and intelligible to all listeners.


  • Balanced XLR input and output
  • Level control to make up or add gain
  • Mounting designed to fit Rolls RMS270 rack tray or HR31 rack ears

Specifications for the Rolls HRD342

{ "Maximum Output" : [ "+16 dB balanced,", "+10 dB unbalanced" ], "THD + N" : [ "1 kHz, 0.1% 34 ms", "0.5% 120 ms" ], "Noise Floor" : [ "-75 dB 43 ms", "-63 dB 430 ms" ], "Delay" : { "Delay Time" : "32 to 360 ms +/- 20%" }, "Indicators" : "Overload Indication red LED full on=overload", "I/O Connectors" : "Balanced XLR & RCA", "Power" : [ "15 VDC", "5.5 X 2.1 mm DC Jack center negative" ], "Dimensions (HxWxD)" : "6.75 x 1.75 x 3" (171.5 x 44.5 x 76.2 mm)", "Weight" : "1.1 lb (0.5 kg)" }

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