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    dbx AFS224 2-Channel Advanced Feedback Suppression Processor

    1/80th-Octave Filters. Live Filter Lift function.

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    dbx AFS224 Feedback Eliminator Product Description

    Advanced technology and extremely narrow, 1/80th-octave filters put the dbx AFS224 at the head of the pack! The concept of the Feedback Eliminator is not original, but it took dbx to make it this musical and usable for all pro audio applications. Where other Eliminators feature filters as wide as about 1/10th-octave, or increase the size of their filters the deeper they cut, the AFS adaptively changes the filter Q using as few filters as possible which makes more filters available to remove feedback. Now your mix will retain all of its punch and sparkle - without the feedback! Live Filter Lift automatically handles feedback reduction, plus all filter resets. Add the AFS224 to your live rack & eliminate feedback problems!

    The dbx AFS224 Advanced Feedback Suppression processor was designed to provide state-of-the art feedback elimination processing, while maintaining a simple and intuitive control interface. From the powerful DSP module to the no-nonsense user interface, the AFS224 provides all the processing and control necessary for both installation and live use. The AFS224 is an absolute must for any live sound application.

    Ten and twelve filter feedback elimination processors have become the de facto standard, but the engineering staff at dbx have never been quite content residing in the neighborhood of the status quo. So, to raise the bar once again, they went out and developed 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 patent-pending AFS technology that had previously only been available in the upper echelon line of products and made it available in this stand-alone processor, which takes all of the guesswork out of feedback removal. In addition to the plethora of feedback suppression filters available, the dbx AFS224 also offers selectable modes, live filter lift, and types of filtration, which are all readily available via the intuitive user interface front panel.


    - dbx's Patent-pending (Advanced Feedback Suppression) AFS (tm) 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 Output

    Same Day Music is an authorized dealer of DBX products.

    dbx AFS224 Technical Description

    Analog Inputs
    Number of Inputs: 2
    Connectors: Female XLR and 1/4 in. TRS
    Type: Electronically balanced/unbalanced, RF filtered
    Impedance: Balanced 50kOhms, Unbalanced 25kOhms
    Maximum input line level: +20dBu
    CMRR: >40dB, typically >55dB @ 1kHz

    Analog Outputs
    Number of Outputs: 2
    Connectors: Male XLR and 1/4 in. TRS
    Type: Electronically balanced/unbalanced, RF filtered
    Impedance: Balanced >120 Ohms, unbalanced >60 Ohms
    Max Output Level: +20dBu

    A/D Performance
    Type: dbx Type IV conversion system
    Dynamic Range: >113 dB A-weighted, >110 dB unweighted, 22kHz BW
    Type IV dynamic range: >119 dB,A-weighted, 22kHz BW >117 dB, unweighted, 22kHz BW
    A/D Conversion: 24 bit
    Sample Rate: 48kHz

    D/A Performance
    Dynamic Range: 112 dB A-weighted, 109dB unweighted
    D/A Conversion: 24 bit

    System Performance
    Dynamic Range: >109dB A-weighted, >106 dB unweighted, 22kHz BW
    THD+N: 0.003% typical at +4dBu, 1kHz
    Frequency Response: 20Hz - 20kHz, +/- 0.5dB
    Interchannel Crosstalk: >80dB typical
    Crosstalk input to output: >80dB

    Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz and 230VAC 50/60Hz

    Power Consumption: 9 Watts

    Safety Agency Approvals:
    UL 6500
    IEC 60065
    EN 55013
    E 60065

    Same Day Music is an authorized dealer of DBX products.

    dbx AFS224 Feedback Eliminator Catalog Description

    Automated feedback elimination@Utilizes extremely narrow 1/80th-octave filters@Live, fixed, and application-specific filter modes

    Same Day Music is an authorized dealer of DBX products.

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