DBX AFS2 User Manual

Hear no evil

and see no evil.

The simplest way to eradicate feedback before it starts.

Hear no evil and see no evil.

dbx Professional Products set the standard

Input Signal Meters

Accurately monitor input signal levels accurately with ﬁve segment LEDs per channel plus red clip LED indicator.

The AFS2, new and improved.

Easy-to-Read Display

Navigate menus, interact with the AFS easily manipulate settings with the bright, legible, interactive display.

Wizard, and

Wizard Functions

The AFS2 Feedback Suppression Wizard makes setup easy and approachable for users with varying levels of technical know-how. Select application-speciﬁc ﬁlter types for Speech, Music Low, Music Medium, and Music High, and the number of ﬁxed or live ﬁlters up to a total of 24.

Channel Bypass

Isolate problem channels with the option to bypass Channels 1, 2, or both.

Notch Filter Indicators

Visually monitor the number of notch ﬁlters applied on each channel.

for excellence in live audio feedback suppression, but dbx engineers — always the consummate and discerning authorities on live sound — saw an opportunity to push the technology further

The completely redesigned AFS2 now offers a highly-intuitive Wizard function that takes all of the guesswork out of setting up any room, incorporates a completely redesigned Advanced Feedback Suppression module, and — perhaps best of all — now provides the user with a full LCD display for setup and monitoring.

Invest in the AFS

Advanced Feedback

Suppression processor from dbx to

protect your ears and your audio equipment from annoying and potentially damaging

USB Connection

Keep your ﬁrmware up-to-date. Visit www.dbxpro.com for the latest ﬁrmware updates.

Q: How do you kill feedback without killing frequency response? A: Extremely narrow-band notch ﬁltering.

Before the human ear even begins to sense it, the dbx AFS2 hears the feedback creeping

up in the signal. It analyzes that feedback in a matter of milliseconds to determine its speciﬁc

frequency and corrects the output from the PA using very narrow frequency notches — i.e., it

cuts a very speciﬁc range of frequencies from your output signal, so the feedback disappears.

If the range of frequencies cut from the output signal is too wide however, sound quality could

be affected. That’s why the proprietary Advanced Feedback Suppression algorithms in the

dbx AFS2 cut out only what is needed, in notches as narrow as 1/80th of an octave, ensuring

optimal frequency response without the possibility of feedback.

LEFT AND R IGHT MAIN I NSERTS

MIXER AFS2

EQ AMPLIFI ER

XLR and 1/4” TRS Connections

Interface with any professional audio equipment with either connection.

audio feedback.

Setup Wizard makes initial set up easy, with AFS settings customized for your speciﬁc application and system.

The Wizard function in the AFS2 guides you

through easy, step-by-step processes to help you

get the most from your loudspeaker system. The

Wizard will help you determine which application-

speciﬁc feedback ﬁlter type to use and how many

ﬁxed or live ﬁlters to apply to your signal.

An example system setup with the AFS2:

Enhanced AFS™ algorithm for faster, more precise feedback elimination, without adversely affecting your system’s tone.

Nothing turns audiences away like annoying and

potentially painful audio feedback. Fortunately,

dbx engineers have revisited their already-stellar

Advanced Feedback Suppression algorithm and

made it work even better. The all-new AFS2 listens

for and anticipates feedback and adjusts frequency

output automatically before feedback even has a

chance, while never altering your sound.