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 SW 215E - SP



  • 2 x 15″ high-performance subwoofer with integrated driver and power amplifier technology
  • Frequency range down to 36 Hz (-10 dB)
  • Stacking grooves for single or clustered K&F Line 212 systems
  • High achievable maximum sound power level 137 dB (peak/1 m/half room)


Bass reflex system with ewponential tunnel geometry, integrated driver and power amplifier technology
Lower cut-off frequency -10 dB
36 Hz (FILTERS 'ON')
Frequency range ±3 dB
42 Hz – 250 Hz (FILTERS 'OFF')
45 Hz – 100 Hz (FILTERS 'ON')
Max. SPL
131 dB (peak/1 m/free field)
2 x 15″ long excursion chassis, 100 mm voice coil, internal and external ventilation, double spider, demodulation rings for lowest distortions (double DDR)
Signal connectors
Pin 1 = ground
Pin 2 = + signal
Pin 3 = - signal
15 mm frame-reinforced Multiplex plywood, impact-proof black structured paint (PU), 4 ergonomic butterfly handles, 4 integrated handles, K&M mounting plate M20 for distance rods, 8 non-abrasive plastic sliders, stacking grooves for stacking identical enclosures and Line 212 as single units or clustered, 100 mm rear mounted transport castors, 2 locking profiles for optional transport cover, ball proof steel grille with exchangeable black acoustic foam
Dimensions (W x H x D)
481 x 1026 x 770 mm
72.4 kg
RAL 9005 (black)
RAL Special Colour
'without 100 mm castors'