Behringer B1020, B1500X Optimum Performance, Operating Modes, 2.1HF driver, 2.2Avoiding feedback

Models: B1800X B1020 B1500X

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2. OPTIMUM PERFORMANCE

EUROLIVE SERIES

2. OPTIMUM PERFORMANCE

The EUROLIVE SERIES was designed for use in a variety of applications. Naturally, the sound of your speaker enclosures largely depends on the acoustic properties of the environment in which it is used. The following points should help you get the most out of your EUROLIVE speaker system.

2.1HF driver

High frequencies are a crucial part of the audio spectrum, which ensures clear sound and speech intelligibility. Whereas these frequencies are the most easily located, they are also the first to be acoustically blocked. We therefore recommend that you set up your speakers so that the HF driver is situated slightly above the heads of the audience. This will ensure not only optimal dispersion of the high-frequency content, but also considerably improved speech intelligibility and clarity.

2.2Avoiding feedback

Always place the “front-of-house” speakers (the enclosures facing the audience) in front of the microphones. Use professional floor wedges (e.g. EUROLIVE F1220 or F1520), so that the performers on stage can hear themselves.

2.3Avoiding feedback when using turntables (e.g. DJ applications)

Turntables often produce low-end feedback: low frequencies are fed back to the pickup arm and cartridge and reproduced again by the speakers. Common causes of low-end feedback are speakers set up too close to the turntable, rooms with a wooden floor or elements placed on the stage. In such cases, try moving the speakers away from the turntable or off the stage and placing them on a solid support. Another possibility is to mount the enclosures on stands, thus minimizing direct contact between floor and speakers.

2.4Protecting your speakers with a low-cut filter

Low-frequency rumble or extreme low frequencies can lead to an excessive displacement of the speaker diaphragm and in turn to permanent damage. Using an equalizer or a low-cut/high-pass filter to eliminate the low frequencies below the response curve of the speaker can effectively prevent this. Most equalizers and sound enhancers provide a low-cut function (e.g. BEHRINGER ULTRA-GRAPH PRO GEQ3102).

The use of a low-cut filter in the signal path is especially recommended when using turntables and/or CD players as signal sources. CD players often produce extremely low frequencies, which can lead to excessive diaphragm displacement.

3. OPERATING MODES

With the exception of the B1020, all EUROLIVE SERIES multi-way systems can be operated in two various modes: FULL-RANGE and BI-AMPING. The subwoofers can either be operated in ACTIVE (BI-AMPING) or PASSIVE mode. Use the switch on the rear panel of the enclosure to select the appropriate mode for your application (see chapter 3.3). In both modes, the speakers are connected using the Speakon® inputs.

+Never change the operating mode while an audio signal is present.

3.1FULL-RANGE operation

All EUROLIVE models are equipped with a built-in passive crossover network, which ensures a smooth transition between the individual frequency ranges in FULL-RANGE mode. This mode is particularly suitable for applications that require only a small-scale setup, such as speech applications in churches and schools, sound reinforcement in small clubs etc.

3. OPERATING MODES

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Behringer B1020, B1500X Optimum Performance, Operating Modes, 2.1HF driver, 2.2Avoiding feedback, 3.1FULL-RANGEoperation