dbx
AFS2 Advanced Feedback Suppression Processor
Best feedback management tool for professional live sound engineers.
Elevate your audio with the dbx AFS2 Advanced Feedback Suppression Processor. This powerful unit uses patented AFS™ technology to precisely eliminate unwanted feedback, ensuring pristine sound quality. It offers up to 24 narrow Q filters per channel for detailed control and features an intuitive Wizard setup function for simplified configuration. With its full LCD display, stereo or dual independent channel processing, and robust metal enclosure, the AFS2 is ideal for professional audio environments seeking reliable and effective feedback management.
$299.99
Owner Satisfaction
4.6
/ 5
Category Rank
88
/ 204
#88 in Effects Processors
Price vs Category Average
-33%
Below average
Number of Channels
2
Who it's for
- Audiophiles prioritizing pristine, uncolored sound quality
- Live sound engineers needing reliable feedback prevention
- Busy technicians wanting fast, intuitive system calibration
Who should skip it
- Budget-conscious users with modern digital mixers
- Novice operators prone to aggressive, improper settings
- Beginners lacking experience with professional gain staging
Performance breakdown
Feedback Suppression Precision
Patented AFS technology eliminates unwanted noise with surgical accuracy.
Setup Simplicity
The intuitive Wizard function makes complex configuration accessible for any user.
Filter Granularity
Twenty-four programmable filters per channel provide exceptional control over audio output.
Build Durability
Robust metal enclosure ensures reliable performance in demanding professional environments.
Signal Fidelity
High-resolution 24-bit conversion maintains pristine audio quality throughout the signal chain.
Monitoring Clarity
Full LCD display and LED metering offer clear, real-time system feedback.
Key Specs
Number of Channels
2
Weight
4.5 lbs.
Mixer Type
Digital
Enclosure Material
Metal
System Configuration
Fixed Installation System
Input Connectivity Type
XLR, TRS 1/4 inch
A/D and D/A Conversion
24-bit
Frequency Response
20Hz – 20kHz, +/- 0.5dB
Features
- Advanced Feedback Suppression (AFS) technology
- Up to 24 programmable filters per channel
- Wizard Setup Function for simplified configuration
- Stereo or dual independent channel processing
- Full LCD Display for setup and monitoring
- Live and Fixed filter modes
- 24 LED meters for filter activity
- 24-bit A/D and D/A Conversion
What customers say
Audio professionals highly value the dbx AFS2 for its exceptional reliability and core function: eliminating feedback without degrading sound quality. Users consistently praise the intuitive automatic mode, which delivers impressive, set-and-forget performance immediately. This advanced feedback suppression algorithm effectively targets problematic frequencies, providing engineers peace of mind. Beyond its primary task, the unit is recognized for robust build quality typical of dbx, ensuring durability in demanding live sound and installation settings. Its strong performance relative to cost makes the AFS2 an indispensable and highly recommended tool for achieving clear, reliable audio reinforcement.
Know before you buy
The Wizard Setup guides you through the configuration process by automatically adjusting the filter settings to match your specific room acoustics. It simplifies the initial calibration, making it much faster to get your system feedback-free without needing deep technical expertise.
Fixed filters are designed to identify and eliminate feedback during your soundcheck, remaining locked in place throughout the performance. Live filters are dynamic and continuously monitor for new feedback frequencies that may emerge as performers move around the stage.
Yes, the AFS2 supports dual independent channel processing. This allows you to use it on two separate mono sources, such as two different vocal microphones, with each channel having its own dedicated feedback suppression.
The AFS2 is designed to be transparent, utilizing 24-bit A/D and D/A conversion to maintain high audio fidelity. Because it uses very narrow Q filters, it targets only the specific offending frequencies, leaving the rest of your audio signal untouched.
You have access to up to 24 programmable filters per channel. This high filter count provides precise control, allowing you to suppress multiple feedback points without significantly altering the tone of your mix.
Absolutely. With its robust metal enclosure and standard 19-inch rack-mount dimensions, the AFS2 is built to withstand the demands of fixed installation systems in venues like houses of worship, schools, and conference rooms.
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Ask Hayley anything about this product before you decide.
Ready to buy?
$300