Loyola Enterprises

A veteran and minority owned SDB Certified Business.


FRX+ 181

757.498.6118 Ext - 109FRX Plus 181 - Call for pricing - 18-inch 400 watt subwoofer


PDFFRX Plus 181 Specifications (pdf)

An 18" low-frequency system Trapezoidal cabinet matches the footprint of the FRX-640/660/940. Use with full-range FRX systems to extend response to a solid 37 Hz. FRX+ Series loudspeakers are designed for applications in critical reverberant spaces where excellent directivity control is mandatory. Typical small-sized speaker systems are not able to maintain their rated coverage angles below 2000 Hz. Their wide beamwidth in the low midband is accompanied by serious degradation of speech intelligibility and clarity of music signals in such hostile environments.

The FRX+181 is designed for applications where extended low frequency response is desired in an FRX+ installation. It is a trapezoidal enclosure identical in size, appearance and rigging to the FRX+ full-range systems. An 18" LF transducer is centrally mounted in a large optimally-vented enclosure for efficient deep-bass response that requires only minimal equalization. These professional fixed install speakers deliver a broad range of performance options including multiple rotatable horn patterns, matching sub-woofer, full-range systems with easily switchable passive or biamp operation, and EV’s world renowned transducer technology for response that is smooth and linear. The FRX+ Series is an economical and flexible solution for the most demanding installations.

Same size full-range and sub-woofer systems allow the installer to construct arrays covering the most demanding acoustical environments while maintaining an aesthetic and uniform installation. The structural integrity of the FRX+ cabinets allows for vertical arrays up to 2 boxes in depth.


  • Vented Direct Radiating 18" Subwoofer Speaker System
  • DL18MT Low Frequency Driver
  • Unequalized flat response to 42 Hz
  • Usable bass output to 32 Hz
  • Built-in L-track rigging
  • Available in black, white and unfinished
  • Enclosure shell identical to FRX+ fullrange
  • High sensitivity, 100 dB below 100 Hz
  • Barrier Strips (Dual) input connections

Frequency Response (-3dB) 37 Hz–2.2 kHz Power Handling 400 W cont. / 800 W prog. / 1600 W peak
Frequency Range (-10dB) 28 Hz–2.8 kHz Enclosure Tuning 36 Hz
Sensitivity 1 W/1 m 100 dB Crossover Frequency 80 Hz
Max SPL/ 1m (calc); half space 132 dB Rec. High-Pass Freq. 32 Hz (12dB/oct.)
Coverage (HxV) Omnidirectional Nominal Impedance 8 Ω
Connectors Barrier strips Minimum Impedance 6.4 Ω
Enclosure Material 13-ply Birch plywood Transducers (LF) DL18mt
Grille 16 GA steel Environmental Spec IEC 529 IP24, MIL STD 810
Dimensions (HxWxD) 80.0 x 72.4 x 68.6 cm
(31.5" x 28.5" x 27.0")
Weight 45.5 kg (100 lbs)
For pricing options and packages, contact us at
757.498.6118 Ext - 109, Or