All systems in the pro.CLASSICS range have been established in the market for many years and stand for long-lasting quality. pro.CLASSICS speaker systems are proven sound solutions for both mobile use and also in installations. Whether as a special installation version with no handles or feet, in ‘outdoor mobile’ and ‘outdoor installation’ version with 100-volt toroidal transformers, or in a variety of RAL colours on request, numerous options provide almost unlimited possibilities. K&F pro.CLASSICS - proven innovation.

The optimally tuned passive systems are distinguished acoustically through their use of all-pass filters. Furthermore, the K&F Line 212 an the K&F ACCESS series gives us two impressive high-performance systems. A true alternative is offered in the K&F SP series (self-powered), which is based on the same passive concept, but has integrated control and amplifier technology. The pro.CLASSICS products offer a large choice of solutions for all sound amplification situations. All in all - K&F pro.CLASSICS are the ideal sound systems for the widest variety of uses and provide maximum flexibility.



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 115E - SP


  • 15″ High-performance subwoofer with integrated driver and power amplifier technology
  • Frequency range down to 37 Hz (-10dB)
  • Stacking foot grooves for SW 115E stacks or combinations with SW 215E and Line 212
  • High achievable maximum 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), 2 ergonomic butterfly handles, K&M mounting plate M20 for distance rod, 4 non-abrasive plastic sliders, stacking foot grooves for stacking of identical enclosures or SW 215E as wall as Line 212, 2 locking profiles for optional transprot cover with castors, ball proof steel grille with exchangeable, black acoustic foam
Dimensions (W x H x D)
470 x 515 x 640 mm
37.3 kg
RAL 9005 (black)
RAL Special Colour