LP-22  ADR/Foley Processor

The LP-22 is a unique processor designed specifically for foley and dialog work in film and television post production, combining a high quality microphone preamp and full dynamics.



  • 0 to 75dB gain in 2 stages.
  • Input accepts up to 25dB without clipping.
  • 20dB pad with constant impedance.
  • Phantom power and phase reverse.
  • Common mode inductive filter protects against RF interference
  • 7 LED bargraph provides PPM metering of mic output stage.
  • Overload indicator at +18dBu which.is approximately 9dB before clip (user adjustable)
  • Low-pass and High-pass filters with overlapping frequencies cover entire audio range.
  • Insert .point with bypass for external device insertion and independent use of mic preamp and dynamics sections in a mixing console via patch bay insertion.
  • Dynamics section combines Compression, Limiting, De-essing, Expanding and a Noise Gate with independent side chain.
  • Fully variable Threshold, Range and Release times.
  • Threshold adjustable from -20dB to +10dB.
  • De-esser switch inserts a custom slope high pass filter in compressor side chain.
  • De-esser frequency control sweeps the band from 2kHz to 18kHz.
  • VCA controlled side chain provides transparent fades to silence.
  • Program dependent Attack time (unless "fast attack" switch is engaged).
  • Bargraph meter displays gain reduction from 0dB to -20dB.



    Mic Gain: adjustable from 0dB to 75dB

    Signal to Noise Ratio: (EIN/150 ohms) 128 dB

    Frequency Response +/- 1dB: 7Hz to 30kHz

    Distortion at 1kHz: 0.001%

    Input Impedance: 1.2kohm (constant impedance)

    High Pass Filter: 35Hz to 600Hz @ 12 dB per octave

    Low Pass Filter: 1kHz to 18kHz @ 12 dB per octave

    Compressor Threshold: -20dBu to +10dBu

    Release Time: 0.1 sec. to 4 sec.

    Make-up Gain: 0dB to +20dB

    De-esser Frequency: 800Hz to 18kHz

    Expander Threshold: -30dBu to +8dBu

    Range: 0dB to 50dB

    Release Time: 0.1 sec. to 4 sec.

    Line or key input level: +4dB nominal, balanced

    Power Requirements: 115VAC/60Hz / 220VAC/50Hz

    Dimensions: 19" x 1U (19" x 1.75" x 8.9") / (483mm x 44.5mm x 225mm)


    Front and rear panel of the LP-22 in PDF format, click here.



    Lafont Users Include:

    4MC; All Post; American Zoetrope; AstralTech; Brasher Sound; Buzz Audio; Bark Audio; C.B.S. TV; Casablanca Sound; Chace Productions; Chicago Audio; Chicago Pacific Recording; Cliff Schwarz Recording; Cinar Films; Creative Cafe; Enterprise Post; Flying Monkey; International Recording; Location Sound; Magno Sound; Millennium Studios; Medallion PFA; Post Modern Sound; Novastar; Olympic Sound Studios; Sonolab; Soundfirm; Paramount Pictures; Premier Post; Signet Sound; Skywalker Sound; Sony Pictures; Sound One; The Beach; The Walt Disney Company; Todd AO Studios; Universal Pictures; Virtuality Recording; Warner Brothers; Warrenwood Studios; Westwind Media; 20th Century Fox