Behringer B1800, F1220, F1520, B1520, B1220 Optimum Performance, Tweeter, How to avoid feedback

2. OPTIMUM PERFORMANCE

We designed the EUROLIVE SERIES for use in a variety of applications. Naturally, the sound of your speaker box largely depends on the acoustic properties of the environment in which it is set up. The following points will give you a few hints enabling you to fully exploit all features of your EUROLIVE speaker system.

2.1Tweeter

High frequencies are the very part of the audio spectrum that ensures a clear 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 so that the tweeter radiates its signals slightly above the heads of the audience. This will ensure both an optimum dispersion of the high-frequency content and a considerably improved speech intelligibility.

2.2How to avoid feedback

Always place the “front-of-house” speakers (viewed from the audience) in front of the microphones. Use professional floor monitors (e.g. F1220 or F1520), so that the musicians on stage can hear themselves.

2.3How to avoid feedback when using turntables (DJ Applications)

Turntables often produce feedback in the bass range: low frequencies are fed back to the pick-up arm and cartridge to be reproduced again by the speakers. The usual reasons for this effect are speakers set up too close to the turntable, rooms with a wooden floor or elements placed on the stage. In any such case it will be best to move the speakers away from the turntable or to move them off the stage and place them on a solid support. Another possibility is the use of stands, so that there is no direct contact between floor and speakers.

2.4Speaker protection through low-cut filter

Please avoid situations in which rumble noise or low frequencies can lead to an excessive displacement of the speaker diaphragm. Use an equalizer to cut the bass signal below the response curve of the speaker, or use a low-cut or high-pass filter. Most equalizers and sound enhancers provide a low-cut function (e.g. our BEHRINGER ULTRA-GRAPH PRO GEQ3102).

The use of a low-cut filter in the signal path is recommended, in particular, when you are using turntables and CD players as your signal sources. CD players often produce extremely low frequencies which can lead to excessive diaphragm displacement. The only way to avoid damage is to use a high-pass or low-cut filter.

2. OPTIMUM PERFORMANCE 7