dbx AFS2

dbx AFS2

The AFS2 effectively suppresses feedback without altering the sound. It is an indispensable aid for concerts and live productions. The AFS2 has an extremely fast feedback detection algorithm. If feedback occurs, the algorithm intervenes to correct it. Extremely narrow notch filters are set (up to 1/80 of an octave) to remove unwanted feedback frequencies. As only a fraction of the frequency spectrum is processed, a change in the sound is barely audible. The AFS2 works in two operating modes:

• In fixed mode, filters are set for frequencies that cause feedback. Once assigned, the settings are retained and saved. There are corresponding presets for vocals and music.
• In live mode, the audio signal is analyzed in real time and feedback is detected and removed. This mode is particularly useful for concerts and presentations. For example, when singers change their position, new feedback frequencies constantly appear. All filter assignments are constantly updated and those no longer required are automatically removed using the filter lift function.

Operation of the AFS2 is very user-friendly. It is operated via buttons and a convenient rotary control. All settings are shown on the LCD display. The device can be configured in just a few steps using the wizard function. However, the AFS2 can also be set up completely manually. For the overall or monitor mix, the AFS2 is simply connected between the mixing console and amplifier. However, it can also be looped in via the mixing console's channel insert. The two channels of the AFS2 can be operated in stereo or independently of each other.

Top features:

• Extremely fast algorithm for detecting feedback
• Extremely narrow notch filters remove a fraction of the frequency spectrum so that a change in the sound is barely audible
• 24 programmable filters per channel
• Clear display of the set notch filters - 24 LEDs per channel
• Simple operation and setup wizard for adjusting the device

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