The AFS2 is ideal for bands, DJs, live sound and fixed installation applications and offers a host of upgraded features including a Wizard auto-setup function, a completely re-designed Advanced Feedback Suppression module, and a large LCD display. Successor to the popular AFS, the AFS2 provides state-of-the-art feedback elimination, yet is simple to use, thanks to its one-button Wizard function that automates key setup parameters and walks the user through the configuration process. The AFS2 can be added to a system in minutes, thanks to its easy rear-panel connectivity and its optimized front panel. This new module provides for faster and more focused filter sets in both fixed and live mode. This level of extreme precision, previously available only in high-end processors, enables the AFS2 to zero in on the exact frequencies needed to attenuate feedback.
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The Mode buttons should be lit a yellow or amber color. If they are not press each MODE button until they are both yellow. Page 3 Select how many total filters that you want active. The default of 24 is a good place to start. Hold this button until the filter LEDs flash all the way across. Press and hold the channel 1 TYPE button to select between dual mono or stereo mode. Page 6 Perform a sound check on all of the microphones that will be active.
Get them as close to the performance level as possible without feedback. Page 7 Pull the master faders on the mixer all the way down no signal. Check the Mode buttons. If they are not lit green, press the buttons until they are lit green. None of the filter LEDs should be lit at this point. Slowly raise the master faders on the mixer. As feedback occurs, Fixed filters will be set. You may want to push the faders a little past the unity gain point or performance level.
This way the system will not be right on the verge of feedback when set to performance level. Page 9 When you have reached the desired performance level, press the MODE buttons until they are both lit red. If, for whatever reason, you would like to restart the process, you can do so by clearing the filters and restarting with step 1. Hold this button until the filter LEDs flash all the way across from the outside inward.
The [r]evolution Continues
I remember when automatic feedback suppressors first appeared and were hailed by some, including me as a wonder of their age. Imagine having an invisible, unpaid extra pair of ears and hands constantly monitoring the PA for feedback problems and instantly applying selective EQ corrections as necessary, all without interrupting the performance or affecting the overall sound quality It all sounded too good to be true at the time, but it actually worked pretty well in many applications, and the detection algorithms have now evolved and become increasingly sophisticated The new Dbx AFS2 updates and replaces the well—established and successful AFS, which has been around for a few years now. As a user of the previous model myself I was interested to have a look at its replacement in the product line. I like to have a feedback processor available for every job I do, in the same way as I like to have extra sets of batteries and every kind of mains power adaptor — I may not use them every time, or even all that often, but every so often a situation will arise where that extra capability can make all the difference between a horrendous, stress—filled experience and a successful result.
dbx AFS2: Rack Hardware zur Unterdrückung von Feedback
The Mode buttons should be lit a yellow or amber color. If they are not press each MODE button until they are both yellow. Page 3 Select how many total filters that you want active. The default of 24 is a good place to start.