SK-F amp

The SK-F-amp loudspeaker is a powered version of the SK loudspeaker system which is a fully horn loaded compact cabinet made for application where directivity and power are of importance. The SK-F-amp uses a proprietary 12 inch low frequency cone driver, a 8 inch mid frequency cone driver and a 1 inch high frequency driver loaded with a CD horn. All drivers are mounted in the same horn to form a unique power source point with very precise directivity of 45°x 50° (H x V) down to 300 Hz. The SK-F-amp is easily arrayable with its 9,5° trapezoidal shape and L-track rigging flying hardware. The SK-F-amp built-in electronics package features a new lightweight, two channel class D audio power amplifier (D2SP) designed specifically for Self-Powered products.

Key features 
  • High efficiency
  • Medium throw
  • Arrayable
  • Compact
  • Self powered
  • Ethernet 
  • PC remote controlled

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Frequency response (1):   60Hz - 20KHz

Phase response:  350Hz - 10KHz + / - 45°

Maximum peak SPL (2):   140dB

Directivity: H 45° x V 50°


Low frequency:     1 x 12", ferrofluid cooled, long excursion
Nominal Impedance:   8 Ohms

Mid frequency:      1 x 8", ferrofluid cooled, low distortion
Nominal Impedance:   16 Ohms

High frequency:    1 x 2" diaphragm ferrofluid cooled compression driver, loaded with CD horn
Nominal Impedance:   16 Ohms


Output power (low) (5):   1'250W RMS

Output power (Mid-High) (5):   1'250W RMS

THD, DIM, SMPTE:   <0,05%

Audio Input 

Type:   Analog Differential balanced input circuit

Connectors:    Female XLR; Male XLR loop

Nominal impedance:   10K Ohm

AC Power 

Connectors:   Female PowerCon, in; Male PowerCon loop

Input voltage:   115V - 230V nominal +/- 10%


Sampling rate:   96 Khz

Basic delay:   0.76 ms

Dynamic range:   115dB

Remote / Network 

Type:    Ethernet

Connectors:    RJ45 female, RJ45 loop


Cabinet Size (WxHxD):   547 x 825 x 630 mm 

Cabinet finish:   15 & 18mm plywood, black epoxy painted, other colours on request

Rigging:    Aircraft L-track fitings, front and back

Protective grilI:    Removable perforated 1,6mm steel, foam cover inside

Weight:    52Kg


Elements & Accessories 
  • LM3-F-amp
  • SUB3-amp
  • SUB800-amp
  • SUB1000-amp
  • SK-F-Trolley




(1) Frequency response: +/- 3dB, measured at 3 meters, on axis, half-space conditions -  MLSSA 1/3 octave

(2) Max peak SPL: Measured with music referred to 1 meter

(3) Crossover: Acoustical crossover frequency - at these frequency, transducers produce equal sound pressure level

(4) AES: Power handling is measured under AES standard conditions

(5) Power AMPS: Amplifier RMS output power per channel into 2 ohms, both channel driven