LM3-F amp

The LM3-amp is a self-powered low-mid subwoofer cabinet designed to complement AP SK or SK amp touring system. It provides with an efficient solution when there is a need to reinforce the low frequencies within a flown cluster. The LM3-amp cabinet is composed of 2 x 15 inch ND cone drivers mounted in a proprietary horn-loaded band pass system. This particular design reaches a high efficiency on-axis and reduces substantially the sound emitted toward the rear, which prevents from unwanted low frequency feedbacks on-stage. The LM3-amp uses the same cabinet shape and L-track flying hardware as the SK-amp system. The combination of SK and LM3-amp’s cabinets gives a very powerful full range system down to 55Hz.

Key features 
  • High power
  • Self powered
  • Monitor & FOH presets
  • Ethernet Networking
  • PC remote control

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Frequency response (1):   55Hz - 180Hz

Maximum peak SPL (2):   140dB


Low frequency:     2 x 15", ND ferrofluid cooled, long excursion, low distortion cone driver

Nominal Impedance:    2 x 8 Ohms


Output power (low1) (5):   2'500W

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:   115 dB

Remote / Network 

Type:    Ethernet

Connectors:    RJ45 female, RJ45 loop


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

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

Rigging:   Aircraft L-track on front and rear

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

Weight:   55Kg

Elements & Accessories 
  • LM3 trolley
  • SUB800-amp
  • SUB1000-amp

(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