Rain Dance EX1200 - Manual (Page 13)

13
ULTRABASS PRO EX1200
and the subwoofer cancel each other out at certain frequencies and positions. To check this,
walk around the room and listen to the difference between X-OVER switched on and off. It is
therefore possible to hear more bass without a subwoofer or by using the crossover function
even with full range speakers.
3.2 The Integrated Limiter
Devices of this kind produce bass frequencies with hazardous levels, which can overload or damage your
loudspeaker systems. For this reason, the ULTRABASS PRO integrates a level limiter which monitors and if
necessary reduces the low-frequency level of the generated output signal. The limiter controls both temporary
signal peaks to avoid distortion, as well as constant overloading to prevent the speakers from being damaged.
If excessive signal levels are detected, the limiter follows the THRESHOLD setting and reduces the output
signal amplitude to a value below distortion. The setting of this control depends on numerous factors, such as
level and low-frequency contents in the program material, overall level, the amplifier’s capacity, the loudspeaker’s
power rating etc. As a rule of thumb it is recommended to adjust the THRESHOLD control so that the first two
LEDs of the gain reduction meter light up. The setting should be checked by ear.
In addition to its function as a protection device, the limiter can also be used as an effect to provide constant
power. For this purpose, the THRESHOLD control is adjusted in such a way that the limiter responds all the
time and thus provides a constant low-frequency level, without losing the dynamic punch of the program
material. In this setup, it should be observed that a correct ratio between the BASS LEVEL and THRESHOLD
controls is maintained.
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Be careful when using the ULTRABASS PRO: excessive use can damage your loudspeaker
system. The low-frequency signals produced by the ULTRABASS PRO can highly stress both
amplifier and low-frequency speakers. So, do not exaggerate the effect, use the integrated
limiter and observe the power rating of your system!
4. INSTALLATION
4.1 Audio Connections
The audio inputs and outputs on the BEHRINGER ULTRABASS PRO are fully balanced. If possible, connect
the unit to other devices in a balanced configuration to allow for maximum interference immunity.
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Please ensure that only qualified persons install and operate the ULTRABASS PRO. During
installation and operation the user must have sufficient electrical contact to earth. Electro-
static charges might affect the operation of the ULTRABASS PRO!
You will find further information in chapter 1.2 “Before you begin”.
4. INSTALLATION