DBX AFS224

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.

FEATURES

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

SPECIFICATIONS

ANALOG INPUTS
Number of Inputs	2
Connections	Female XLR ad 1/4" TRS
Type	Electronically bal/unbal RF filtered
Impedance	Bal 40k ohm, unbal 20k ohm
Max. Input Level	+20dBu
CMRR	>40dB, typically >55dB @ 1kHz
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	+20dBu
A/D PERFORMANCE
Type	dbx Type IV conversion system
Dynamic Range	>114dB, A-weighted, >112dB unweighted
Type IV dynamic range	>119dB, A-weighted, 22kHz BW
Type IV dynamic range	>117dB, A-weighted, 22kHz BW
Sample Rate	48kHz
D/A PERFORMANCE
Dynamic Range	112dB, A-weighted, 110dB unweighed
SYSTEM PERFORMANCE
Dynamic Range	>110dB, A-weighted, >107dB unweighted
THD+N	0.002% typical at +4dBu, 1kHz, 0dB input gain
Frequency Response	20Hz - 20kHz, +/-0.5dB
Interchannel Crosstalk	>80dB typical
Crosstalk input to output	>80dB
POWER SUPPLY
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

Note: Specifications subject to change without notice.

Document

Cut Sheet

Manual