Classic Products


These sound systems are acoustic all-rounders. Passive and 'Self Powered' variants with integrated amplifier electronics. Durable, flexible and always reliable. Proven solutions for the highest requirements.



Powerful drive

With this high-quality self-powered loudspeaker system, the best possible sound characteristics and the ideally tuned amplification power are already integrated. This product series is based on selected models from the passive K&F CA and Line series, which are equipped with state-of-the-art, innovative driver and power amplifier technology. The implemented active electronics are run by the system-specific controller functions and include one to two highly efficient digital and fanless 1 kW class D power amplifiers. The complete electronic system weighs only 2.5 kg (or 4.5 kg). Remarkably powerful!

Completely compatible

All full-range systems from the SP series also have a passive crossover, in addition to the controller and power amplification electronics functions, which ideally complement the known advantages of the K&F passive technology (all-pass filters, safety switches). In this way, the full-range systems and subwoofers of the SP series are completely acoustically compatible with the corresponding passive models from the CA and Line series. Can be flexibly combined at any time!

Conceivably simple

All active speakers are ready to be used immediately, since the full-range systems of the SP Series reproduce the complete frequency range. If necessary, SP subwoofers can provide additional support to the bass playback. An optional high-pass filter on the SP subwoofer then determines the ideal crossover frequency. All systems in the SP Series can be combined with one another using the integrated phase alignment. Easy going!


Product overview

CA 1001 – SP: 1 x 10″/1 x 1″ 85° x 55° (H x V)
CA 1215-6 – SP: 1 x 12″/1 x 1.5″ 65° x 50° (H x V)
CA 1215-9 – SP: 1 x 12″/1 x 1.5″ 90° x 50° (H x V)
CA 1515-6 – SP: 1 x 15″/1 x 1.5″ 65° x 50° (H x V)
CA 1515-9 – SP: 1 x 15″/1 x 1.5″ 90° x 50° (H x V)
Line 212-6 – SP: 2 x 12″/1 x 1.5″ 65° x 50° (H x V)
Line 212-9 – SP: 2 x 12″/1 x 1.5″ 90° x 50° (H x V)
SW 112 – SP: 1 x 12″ Omni
SWi 112 – SP: 1 x 12″ Omni
SW 115E – SP: 1 x 15″ Omni
SWi 115E – SP: 1 x 15″ Omni
SW 118E – SP: 1 x 18″ Omni
SWi 118E – SP: 1 x 18″ Omni
SW 215E – SP: 2 x 15″ Omni



K&F SWi 115E - SP



  • 15″ High-performance subwoofer with integrated driver and power amplifier technology
  • Frequency range down to 37 Hz (-10dB)
  • 'i' – version for fixed installations
  • High achievable maximum SPL 125 dB (SPL peak/1 m/free field)


Bass reflex system with integrated driver and power amplifier technology
Lower cut-off frequency -10 dB
37 Hz (FILTERS 'ON')
Frequency range ±3 dB
43 Hz – 150 Hz (FILTERS 'OFF')
42 Hz – 115 Hz (FILTERS 'ON')
125 dB (SPL peak/1 m/free field, equivalent 131 dB half room)
15″ long excursion chassis, 100 mm voice coil, double centering, internal and external ventilation, Aluminium demodulation ring for minimal distortion
Input connectors
Pin 1 = ground / pin 2 = + signal / pin 3 = - signal
LINE IN: XLR 3-pin female
LINE OUT: XLR 3-pin male, parallel with LINE IN
15 mm frame-reinforced Multiplex plywood with highly resistant black structured paint (PU), ball proof steel grille with exchangeable, black acoustic foam
12 x M12 thread inserts (concealed)
Dimensions (W x H x D)
470 x 504 x 640 mm
37.6 kg
RAL 9005 (black)
RAL Special Colour