Advanced Feedback Suppressor


The dbx AFS2 Advanced Feedback Suppression processor has been completely re-designed to take the foundation of the best selling AFS224 and bring it to the next level.
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The dbx AFS2 Advanced Feedback Suppression processor has been completely re-designed to take the foundation of the best selling AFS224 and bring it to the next level. The AFS2 now offers the highly-intuitive Wizard function that takes all of the guesswork out of setting up any room.  The AFS2 also incorporates a completely re-designed Advanced Feeback Supression module.  Best of all, the AFS2 now provides the user with a full LCD display setup and monitoring.

With its powerful DSP module, the AFS2 provides all the processing and control necessary for both installation and live use. Ten and twelve filter feedback elimination processors are the de facto standard, but the AFS2 offers a dedicated feedback suppression processor that offers up to 24 filters per channel with filter Qs up to 1/80 of an octave. To achieve these staggering numbers dbx utilized their improved AFS technology that had previously only been available in the upper echelon line of products and made it available in this stand-alone processor. In addition to the plethora of feedback suppression filters available, the AFS2 also offers selectable modes, live filter lift, and types of filtration, which are all readily available via the intuitive user interface front panel.

dbx AFS2 Features:

  • Wizard Setup Function
  • Full LCD Display
  • dbx’s Patent-pending (Advanced Feedback Suppression) AFS technology
  • 24 Programmable Filters per Channel
  • Stereo or Dual Independent Channel Processing
  • Live and Fixed Filter Modes
  • Selectable Filter Lift Times
  • Application-specific filter types include: Speech and Music Low, Med and High
  • Input channel Metering
  • 24 LED per Channel Filter Metering
  • XLR and TRS Inputs and Outputs

dbx AFS2 Specifications:

  • Number of Inputs: 2
  • Input Connectors: Female XLR and 1/4” TRS
  • Input Type: Electronically balanced/unbalanced, RF filtered
  • Input Impedance: 
    • Balanced: 50 kOhm
    • Unbalanced: 25 kOhm
  • Max input line level: +20 dBu
  • CMRR: > 40 dB, typically > 55 dB @ 1 kHz
  • Number of Outputs: 2
  • Output Connectors: Male XLR and 1/4” TRS
  • Output Type: Electronically balanced/unbalanced, RF filtered
  • Output Impedance: 
    • Balanced: > 120 Ohms
    • Unbalanced: > 60 Ohms
  • Max Output Level: +20 dBu
  • A/D Converter: dbx Type IV Conversion System
  • A/D Dynamic Range: 
    • > 113 dB A-weighted, 22 kHz BW
    • >110 dB unweighted, 22 kHz BW
  • Type IV Dynamic Range: 
    • > 119 dB, A-weighted, 22 kHz BW
    • > 117 dB, unweighted, 22 kHz BW
  • A/D Conversion: 24-bit
  • Sample Rate: 48 kHz
  • D/A Dynamic Range: 
    • 112 dB A-weighted
    • 109 dB unweighted
  • D/A Conversion: 24-bit
  • Dynamic Range: 109 dB A-weighted, 106 dB unweighted, 22 kHz BW
  • THD+Noise: 0.003% typical at +4 dBu, 1 kHz
  • Frequency Response: 20Hz – 20kHz, +/- 0.5dB
  • Interchannel Crosstalk: > 80 dB typical
  • Crosstalk input to output: > 80 dB
  • Operating Voltage: 100-120VAC 50/60 Hz; EU: 220-240 VAC 50/60 Hz
  • Power Consumption: 9 W
  • Unit Weight: 4.5 lbs. (2.04 kg)
  • Dimensions (HxDxW): 1.75” x 5.75” x 19” (4.4 x 14.6 x 48.26 cm)

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