218R Double 18″ Acoustifold Vented Sub



The 218 R is the big brother to our 215 R subwoofer. The band pass/ direct radiator combination of the front baffle results in a tight punchy sound with more extended low frequency than the 215 R. This box is designed to shine where there is a high output need with a minimum baffle area. The use of two high-power 18″ woofers with 4.5″ voice coils results in low power compression and excellent efficiency. The 18″ subwoofers are housed in an enclosure of truck pack dimensions.

There are two additional versions available in addition to the tour version shown here. There is an Ultra-High Power version of this tour version that boasts 6400 Watts Program power. The 218R is also available in a “stage version” and designed with a stage’s limited floor space in mind. The 218 R Stage has the same price and identical performance of the 2-18-R.



System TypeBand Pass Acoustifold Vented Sub
Program Power ( Watts )2400W RMS / 4800W Program
Nominal Impedance (Ohms)4 Ohms
Sensitivity (dB @ 1Watt/1m)102
Max SPL (dB)140
Frequency Response (Hz +/- 3dB)39 – 400 Hz
Crossover Frequency (Hz)80 Hz Recommended
Driver Configuration2 x 18 ” woofers wired in parallel
LF Driver(s)Two 4 ” Voice Coils, 18″ Woofers
LF Program Power ( Watts )4800W
LF Program Power – Ultra High Power Version ( Watts )6400W
LF Impedance (Ohms)4 Ohms
Inputs2 NL4, Paralleled
Inputs – Speakon Neutrik 4-pinNL4 Paralleled at pins 1+ and 1-
Flying Hardwareoptional
Bar Handles2 per side
Enclosure Materials3/4″ 11 Ply Birch Plywood
16 Ga. Perforated Steel
Finish / CoveringDuraBlast polyurea coating
Dimensions (DWH, inches)42 x 30 x 22 1/2 inches
Dimensions (DWH xback W, cm)107 x 76 x 57 cm
Weight (lbs/kg)170 lbs / 77.3 kg