The SUB418-amp is a compact, selfpowered subwoofer cabinet designed to extend the frequency range and power bandwidth of Audio Performance full-range loudspeaker systems. With a cut-off frequency of 25Hz, the SUB418-amp is made for applications where the reproduction of sub frequencies is of importance (music, sound effects).It consists of one long excursion 18-inch ND cone driver mounted in a heavily braced vented enclosure.

The SUB418-amp built-in electronics package features a new lightweight, four channel class D audio power amplifier (D2SP) designed specifically for Self-Powered products.The D2SP amplifier module is a sophisticated switch mode power supply, class-D amplifier design capable of delivering more than 2x 2’500W RMS (bridged mode) into 4 Ohms and 4x 1’250W RMS into 2 Ohms and adding only 5Kg to the weight of the cabinet.

Key features 
  • Self powered
  • 25Hz cut-off frequency
  • Optimal LF coupling
  • PC remote controlled

Keep empty


Frequency response (1):  25Hz - 150Hz

Maximum SPL peak (2):   137dB


Low frequency :   1x 18", ND ferrofluid cooled, long excursion, low distortion cone driver


Output power (5):   2'500W RMS
THD, DIM, SMPTE:   <0,05%

Output power (low) (5):   1'250W RMS
Ouput power (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: PC and PodWare Software

Connectors:    RJ45 female, RJ45 loop


Cabinet Size (WxHxD):   494 x 591 x 540mm

Cabinet finish:   Black epoxy painted

Rigging:   EasyFlighing AP rigging system for DLA6-C

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

Weight:   55Kg

Elements & Accessories 
  • DLA6-C
  • Dolly

(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