
6EUROLIVE B1220DSP User Manual
The B1220DSP is equipped with a
(7)Use the EQ HIGH control to cut or boost the treble range by 15 dB. The
(8)Use the EQ LOW control to cut or boost the bass range by 15 dB. The
(9)The B1220DSP features a
(10)The CONTOUR switch governs the dynamic contour filter:
SPEECH
Setting the CONTOUR switch to SPEECH (switch not pressed) will optimize the frequency response for speech applications. This ensures better intelligibility.
MUSIC
Setting the CONTOUR switch to MUSIC (switch pressed) will optimize the frequency response for music playback.
(11)The TIMED TURNOFF switch activates the automatic
ON
When the switch is actuated (ON position), the automatic
OFF
If the switch is not actuated (OFF position) then the speaker remains switched on and can only be deactivated via the POWER switch (2).
(12)A
(13)The TH LED lights up as soon as the signal level drops below the threshold value adjusted with the NOISE GATE control (12) (the
3. Setting Up the B1220DSP
The sound of your B1220DSP largely depends on the room acoustics. Please observe the following hints to get the most out of your B1220DSP.
3.1 Tweeter
High frequencies are the very part of the audio spectrum that ensure a clear perception of sound and speech intelligibility. Although these frequencies can be located most easily, they are also the first to be blocked acoustically. We therefore recommend that you set up your speakers on speaker stands (not included),
so that the tweeter radiates its signals slightly above the heads of the audience. This will ensure both an optimum dispersion of the
Fig. 3.1: B1220DSP mounted on a stand
3.2 How to avoid feedback
Always place the microphones (viewed from the audience) behind the B1220DSP, never in front of it (Fig. 3.2). When you wish to adjust the controls on the B1220DSP while holding a microphone, please approach the loudspeaker from the rear to avoid feedback.
Fig. 3.2: Right and wrong positioning
To avoid feedback, it is recommended that you carefully select and direct the microphones used. Basically, you should use microphones with a high directivity, i.e. with a cardioid or
◊If you encounter persistent feedback problems, consider using our proven FEEDBACK DESTROYER PRO FBQ2496 for
4. Application Examples
4.1 Presentations
With just one B1220DSP and one or two dynamic microphones, you can set up a basic audio system with very little effort. Thanks to the
Connecting microphones:
•Turn the LEVEL controls (3) fully to the left
•Connect your microphones to the MIC/LINE inputs
•Switch on the B1220DSP
•Turn the LEVEL controls (3) gradually clockwise to set the volume of your choice. Observe the CLIP LEDs while adusting the volume. Make sure they never shine constantly but only light up at peak levels
•Use the LINE OUT connector (6) to connect an (optional) second B1220DSP