DBX AFS224 Feedback Eliminator

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Product Description

Advanced technology and extremely narrow, 1/80th-octave filters put the DBX AFS224 Feedback Eliminator at the head of the pack! The concept of the dbx AFS224 Feedback Eliminator is not new 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 dbx AFS224 adaptively changes the filter Q using as few filters as possible which makes more filters available to remove new 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 dbx AFS224 to your live rack and eliminate feedback problems!

DBX AFS224 Feedback Eliminator Features:

  • 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
The 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 DBX 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 AFS224 also offers selectable modes, live filter lift, and types of filtration, which are all readily available via the intuitive user interface front panel.

Product Specifications

DBX AFS224 Feedback Eliminator Specifications

Analog Inputs

  • Number of Inputs: 2
  • Connectors: Female XLR and 1/4 inch 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 inch 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

Helpful Info about the Manufacturer
Phone:  801-568-7660 Warranty:  2 Years
Richard Lynn Jr
Overall Rating
Great Product
What is your overall opinion of this product?
Let's Start off with construction it was very well put together it is a metal chassis on it comes with a left and right input and output with either 1/4" TRS or XLR connection which is perfect for what i use it for, since i work with local hip hop artist this thing helps a lot especially some of them like to go out in front of the speakers so this will help solve feedback definitely a great product i also ordered this on the 3rd and got the next day so the shipping is excellent will be buying more products from American Music Supply and DBX.
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$144.95 - $159.95