Hill Audio RPX-3400 3/4 Way Active Crossover

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The Hill Audio  RPX-3400 is a stereo 2/3-way | mono 4-way active crossover, designed for better sound and protection by multi-amping a sound system. With a flip of the rear side switch, the unit can be configured either in stereo 2/3-way or mono 4-way mode, while the front panel status LEDs visualize which control has which function assigned. The incoming signal is divided into relative frequency bands via precise Linkwitz-Riley filters, which sport seamlessly adjustable crossover frequencies, and offer best driver protection by their steep 24dB/Octave slope. For further protection, 25 Hz Low Cut filters are fitted in both inputs to eliminate inaudible high-energy bass content, and limiters on all outputs are provided with central threshold control. LF driver misalignment is easily accounted for by the adjustable delay control, and the typical roll-off of constant directivity horns can be counteracted with a switchable filter. To make the best use of centrally located subwoofers, the LF outputs can be summed via the “LF SUM” function, making sure that in-phase signals from all subs deliver extra gain. Mute and Phase Invert switches for all outputs make troubleshooting a breeze. Compared to digital loudspeaker management systems, the RPX-3400 is not only more affordable, it also offers greater ease-of-use and a full 20dB signal headroom that only an analog processor can provide.

  • Stereo 2-way/3-Way/Mono 4-way active crossover
  • Linkwitz-Riley filters with 24 dB/octave slope; flat summed amplitude response, zero phase difference
  • Low/Mid Crossover frequencies adjustable in two switchable ranges: 44 to 930 Hz and 440 Hz to 9.3 kHz; Mid/High frequencies adjustable 440 Hz to 9.3 kHz
  • Adjustable time delay for phase alignment between drivers
  • “LF Sum” function for mono subwoofer operation
  • Individual Limiters on every output
  • Individual output level controls for all bands
  • Individual output mute switches for all bands
  • Individual phase reverse switches for all bands
  • CD horn equalization (+3 dB at 3.5 kHz, 6 dB/Oct. boost up to 22.5 kHz)
  • Switchable 25 Hz low cut filter in each input
  • Balanced XLR connectors for all inputs and outputs
  • All switches with LED status indicator
  • Internal wide-voltage swing linear power supply for excellent audio dynamics
  • Full metal case with detachable rack ears
  • AC mains voltage selector switch 115/230V
  • Signal/Noise >88dBu (unweighted 22Hz-22KHz)
  • Crosstalk Damping >92dB
  • THD <01%
  • Frequency response 20Hz – 20 kHz
  • AC supply 115/230V~ 50Hz-60Hz (23W)
  • Dimension 483.0 × 44.5 × 162.0 mm WxHxD
  • Weight 2.3 kg