Behringer Ultrabass BB410 - Manual (Page 7)

7 ULTRABASS BB410 User Manual
Line Out L/R
ULTRABASS BB210
Output R L (Low)
R (High/Mid)
Instrument In
Output L
EP2000
ULTRABASS BB115
BASS V-AMP PRO
BASS V-AMP
Fig. 3.3: Bi-amping: high and low frequencies are separately reproduced by the bass cabinets
When using the BASS V-AMP or the BASS V-AMP PRO, you also have the option
of using bass cabinets in the bi-amping mode. With bi-amping, high and low
frequency ranges are split between different bass cabinets, so that the entire
sound spectrum is not simultaneously reproduced on all speakers. In fig. 3.3,
low-end signals are reproduced on the BB115, while the mids and the highs
are reproduced on the BB210. Splitting the frequency range requires an
active crossover.
The BASS V-AMP and the BASS V-AMP PRO already feature this function.
Here, the frequencies are split in such a way that the low-end signals are
reproduced on the left channel, and the mids and the highs are reproduced
on the right channel. How to make the necessary settings on the crossover
(X-OVER function) is explained in chapter 6.3 (post amp effects) in the
BASS V-AMP/BASS V-AMP PRO manual.
Instrument In
Analog Line Out
Output 2 Output 1
EP2000
ULTRABASS BB115 ULTRABASS BB115
Link Link
ULTRABASS BB210 ULTRABASS BB210
BASS V-AMP PRO
Fig. 3.4: Expanded stereo configuration
This stereo setup is meant for all those who crave a saturated stereo sound.
Together with the BASS V-AMP or the BASS V-AMP PRO, stereo effects such as
Chorus or Delay come alive. Real stereo effects require two separate cabinets
set up to run in stereo. Our EUROPOWER EP2500 is perfect in the amplifier role.
Additionally, with its 2 x 1,200 Watts, it has the necessary headroom to truly rock.
This is the expansion of the setup shown in fig. 3.3. Instead of powering two
individual cabinets, the amp in fig. 3.4 powers each of the two stacks comprised
of the BB115 and the BB210 cabinets. The cabinets are connected to one another
using a link cable. Here, too, we recommend using only professional loudspeaker
cables (compatible with NEUTRIK SPEAKON).
4. Installation
4.1 Speaker connector
When combining several speakers/cabinets, you should bear in mind the
resulting overall impedance. Here are some brief explanations about different
kinds of connections:
Serial connection: The individual impedance values of the connected speakers
are added up. If two 4-Ohm speakers are connected to one another, there is an
overall impedance value of 8 Ohms.
Parallel connection: If speaker/cabinets with identical impedance values are
connected in parallel, the overall nominal impedance is reversely proportional to
the number of speakers, e.g. if you connect two speakers/cabinets, the nominal
impedance is halved; if you connect three speakers/cabinets, the nominal
impedance is one third of the individual speakers’ impedance; with four speakers,
it’s one quarter, and so on. For example, this way you can turn two 8-Ohm
systems into one 4-Ohm system.