EUROLIVE B412DSP
OFF
If the switch is not actuated (OFF position) then the speaker remains switched on and can only be deactivated via the POWER switch .
A
The TH LED lights up as soon as the signal level drops below the threshold value adjusted with the NOISE GATE
control (the
The LED on the front indicates the following operating status:
Indicator | Operating status | |
BLUE light | The device is switched on | |
BLUE light | Device is on standby | |
(dimmed) | (if TIMED | |
| ||
VIOLET light | same function as CLIP LED | |
flashing RED | Device is overheating! | |
Switch off the speaker until it cools down | ||
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Tab. 2.1: Frontal LED operating status |
3. Setting up the B412DSP
The sound of your B412DSP largely depends on the room acoustics. Please observe the following hints to get the most out of your B412DSP.
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: B412DSP mounted on a stand
3.2 How to avoid feedback
Always place the microphones (viewed from the audience) behind the B412DSP, never in front of it (Fig. 3.2). When you wish to adjust the controls on the B412DSP while holding a microphone, please approach the loudspeaker from the rear to avoid feedback.
Fig. 3.2: Right and wrong positioning
Since the B412DSP can be placed on the floor at an angle as shown in the illustration below, you can also use it as a monitor speaker on stage. In contrast to PA speakers, stage monitors are used to direct sound towards individual performers on stage. When microphones are used, it is not easy to position the monitor speakers, since the microphones are moved around in front of them, often coming very close. 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
Microphones with a cardioid polar pattern should always be directed at a 90° angle to the axis of the loudspeaker (Fig. 3.3, left). Microphones with a
Fig. 3.3: The B412DSP as a monitor loudspeaker
+If you encounter persistent feedback problems, consider using our proven FEEDBACK DESTROYER PRO FBQ2496 for
3. Setting up the B412DSP | 7 |