SYSTEM DESCRIPTION
3
musikelectronic geithain GmbH
BASIS 11K BASIS 13K BASIS 14K
3
System description
BASIS 11K, BASIS 13K and BASIS 14K complement the lower octave of our active control speakers
aswell as the central bass unit for stereo playback. On request, the BASIS models with our
multichannel bass processor can also be integrated in surround loudspeaker systems. Furthermore,
the subwoofers can be operated with suitable AV receivers, so that an optimal interaction with our
passive high-end loudspeakers is possible.
We have developed special long-throw driver systems for our active bass speakers, which guarantee
a low-distortion reproduction. All BASIS models have a cardioid-shaped radiation pattern to minimize
backward room reflections. Due to the so-called K-technology (cardioid radiation characteristics in
the bass range), which we have already been successfully using for many years with our 3- and
4-way active loudspeakers, the backward attenuation of more than 10 dB can achieve excellent
results of the space-dependent transmission process even in acoustically critical rooms. As a result of
this design principle, the placement of the bass speakers in their listening room is greatly simplified.
The amplifier output stages work with a 1000 W PWM power module. An electronic limiter acts
as a protection device and protects the low-frequency drivers against overloads. A rear-mounted
LED signals the response of the protection device and the operating state of the bass speaker. The
distance from the front speaker to the subwoofer can be 0 m to 1 m. In this area, a phase correction
is possible. By a switchable high-pass filter, the lower frequency limit can be increased to 40 Hz. The
crossover frequency is continuously adjustable between 60 Hz and 80 Hz. The transmission range of
the LFE channel ends at 120 Hz. The entire control and power electronics as well as all plug-in and
control elements are integrated in the rear of the cabinet.
As an option, the bass speakers are available with a grille. An output on our subwoofers enables the
operation of another passive bass speaker BASIS 11KP, BASIS 13KP or BASIS 14KP. This extension
realizes an acoustic performance doubling and makes the choice of the site less critical. Furthermore,
the system can be switched with a wired remote control in the bypass mode. All output channels
are connected directly to the input channels - the bass channel is disabled, the LFE channel remains
active.
