Cabinet design
with cardioids characteristic
BASIS 13K Active-bass-loudspeaker with cardioid radiation characteristic in bass range
The active bass loudspeaker BASIS 13K serve as complement for the lower octave of our active studio monitors and as central bass unit in stereo reproduction. Shown color and veneer: satin matt dusty grey and ash black
BASIS 13K An optimal cooperation
The active bass loudspeaker BASIS 13K serve as complement for the lower octave of our active studio monitors and as central bass unit in stereo reproduction. Optionally, the BASIS model can also be integrated into surround loudspeaker systems with our multi-channel bass processor BCU7.1. Furthermore, the subwoofer can be operated with suitable AV receivers to also allow optimal cooperation with our passive high-end loudspeakers.
For our active bass loudspeaker, we have developed a special long-stroke bass system that ensure a low-distortion reproduction. The BASIS 13K have a cardioid radiation characteristic for minimisation of rearward room reflections. The so-called K Technology, which we already have been using successfully since many years in our 3-way and 4-way active loudspeakers, features rearward-directed attenuation greater than 10 dB. Thus, excellent results can be achieved for room-dependent frequency response even in rooms with difficult acoustic conditions. This construction principle significantly simplifies the positioning of the bass loudspeaker in the listening room.
The power amplifier is operated with a 1000-W PWM power module. An electronic limiter serves as protective device and keeps the bass driver from overloading. An LED on the reverse side signalises activation of the protective device and operating status of the bass loudspeaker. The distance between front loudspeaker and bass loudspeaker may be between 0 and 1 m. In this range a phase correction is possible. With an activatable high-pass filter, the threshold frequency can be raised to 40 Hz. The cut-off frequency can be adjusted continually between 60 and 80 Hz. The transmission range of the LFE channel ends at 120 Hz. The entire control and power electronics including all connecting and operating elements are integrated into the reverse side of the cabinet.
The bass loudspeakers are optionally available with a grid cover. An output on the subwoofer allows the operation of the BASIS 13KP passive bass loudspeaker. This expansion provides a power doubling and makes the choice of the location less critical. Also, the system can be switched into bypass mode with the aid of a cable remote control. All output channels are directly connected to the input channels - the bass channel is deactivated, the LFE channel remains activated.
Technical data
Bass addition for our active loudspeakers and as subwoofer for our passive high-end loudspeakers
Acoustic characteristics
Maximum SPL
measured at f = 63 Hz
118 dB / r = 1 m (3.3 ft); 2 pi
Bandwidth
25 Hz ... (60 Hz ... 80 Hz, cont. adjustable) - 6 dB; 2 pi
with HPF
40 Hz ... (60 Hz ... 80 Hz, cont. adjustable) - 6 dB; 2 pi
LFE
25 Hz ... 120 Hz - 6 dB; 2 pi
Bass output level
adjustable
Distance compensation
adjustable from 0 ... 1 m (3.3 ft) difference to the front speaker's plane
Loudspeaker system
320 mm (12.5") cone
Electrical parameters
Nominal Input level
- 9 dBu ... + 6 dBu adjustable
Electronic Crossover frequencies
TP 24 dB / Okt.
HP 12 dB / Okt.
Output power of the PWM-amplifier
max. 1000 W / 4 Ohm
Input Connector
3x XLR 3F
Output Connector
3x XLR 3M
1x Speakon NL4 (activation BASIS 13KP)
Connector for bypass-mode switch (Remote)
XLR 4M
Connector for BCU7.1 (MPI)
XLR 4F
Operation and Clipping indicator
LED on back side
Power requirements
90 ... 132 V, 55 ... 65 Hz or 190 ... 265 V, 45 ... 55 Hz
Physical parameters
Temperature requirements
for use
+ 15°C ... + 35°C (59°F ... 95°F)
for usage
- 25°C ... + 45°C (- 13°F ... 113°F)
humidity
45 ... 75 %
Dimensions (H x W x D)
400 x 400 x 400 mm (15.7 x 15.7 x 15.7 in)
Weight
23.3 kg (51.2 lbs)
Cabinet and options
Design of the Cabinet
MDF-wood in ash black veneered; optional different veneers or colors
Other parameters
Total harmonic distortion
measured at PE = - 14 dBu and f = 50 Hz
89 dB / r = 1 m (3.3 ft)
Inherent noise sound level
GK0 / DIN 15996 r = 1 m
Nominal Output level HP
CH1, CH2
+ 6 dBu at 2 kOhm balanced
Input impedance
≥ 10 kOhm RC balanced
Power consumption
20 VA at stand-by, max. 500 VA at full load