DBX AFS224

DBX AFS224

AFS224 Advanced feedback suppression, 24 programmable filters per channel

The AFS 224 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 AFS 224 provides all the processing and control necessary for both installation and live use. The AFS 224 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 AFS 224 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™ 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

ANALOG INPUTS

Number of Inputs:
2
Connections:
Female XLR ad 1/4" TRS
Type:
Electronically bal/unbal RF filtered
Impedance:
Bal 40 kohm, unbal 20 k ohm
Max. Input Level:
+20 dBu
CMRR:
>40 dB, typically >55 dB @ 1 kHz

ANALOG OUTPUTS

Number of Outputs:
2
Connectors:
Male XLR and 1/4" TRS
Type:
Electronically bal/unbal, RF filtered
Impedance:
Balanced >120 Ohm, unbalanced >60 Ohm
Max Output Level:
+20 dBu

A/D PERFORMANCE

Type:
dbx Type IV conversion system
Dynamic Range:
>114 dB, A-weighted, >112 dB unweighted
Type IV dynamic range:
>119 dB, A-weighted, 22 kHz BW
>117 dB, A-weighted, 22 kHz BW
Sample Rate:
48 kHz

D/A PERFORMANCE

Dynamic Range:
112 dB, A-weighted, 110 dB unweighed

SYSTEM PERFORMANCE

Dynamic Range:
>110 dB, A-weighted, >107 dB unweighted
THD+N:
0.002% typical at +4 dBu, 1 kHz, 0 dB input gain
Frequency Response:
20 Hz - 20 kHz, +/-0.5 dB
Interchannel Crosstalk:
>80 dB typical
Crosstalk input to output
>80 dB

POWER SUPPLY

Operating Voltage:
100 VAC 50/60 Hz, 120 VAC 60 Hz and 230 VAC 50/60 Hz
Power consumption:
9 Watts

AFS224 Advanced feedback suppression, 24 programmable filters per channel