Electro-Voice EVF-1181S 18in Front-Loaded Subwoofer (Black)

Overview

The Electro-Voice EVF-1181S is an 18 in front-loaded subwoofer for fixed installation, using one EVS18SB woofer in a trapezoidal 13-ply birch enclosure. Used with EVF full-range and low-frequency systems, it extends low-frequency output down to 35 Hz (-3 dB). The EVF-1181S has no internal low-pass filter and runs in biamp mode, with the crossover set in an external DSP. It shares the height of the EVF 12 in and 15 in enclosures, and its rigging lets it form vertical or horizontal clusters with EVF and EVH loudspeakers. The cabinet comes in black or white, in three versions: EVCoat for interior use, PI for indirect weather exposure such as under a roof overhang, and FG with a fiberglass finish for direct exposure.

Key Features

• Woofer: EVS18SB 18 in (457 mm) woofer, developed with FEA optimization of the motor, suspension and electrical design for low distortion at high SPL.
• Low-frequency extension: 35 Hz - 100 Hz (-3 dB, half space).
• Output: 99 dB sensitivity and 131 dB calculated maximum SPL.
• Power handling: 400 W continuous, 800 W program, 1600 W peak.
• Input panel: two 4-pin Phoenix/Euroblock screw terminals that accept up to 10 AWG wire, with optional CDNL4 (dual Speakon NL4), CSG (single gland nut) and CDG (dual gland nut) covers. PI and FG versions include the CDG cover.
• 70/100 V option: the optional TK-150 transformer kit mounts to the input panel for distributed systems.
• Rigging: 28 M10 threaded suspension points, one eyebolt kit included, and optional HRK and VRK kits for horizontal and vertical clusters.
• Weather resistance: EVCoat versions are rated IP44; PI and FG versions are rated IP55 and use a stainless steel grille with hydrophobic cloth. External fasteners are stainless steel on all versions. FG versions have no enclosure vents, which somewhat reduces low-frequency response.

Specifications

• Type: Front-loaded subwoofer
• Driver: EVS18SB 18 in (457 mm) woofer
• Frequency Response (-3 dB, half space): 35 Hz - 100 Hz
• Frequency Range (-10 dB, half space): 28 Hz - 650 Hz
• Recommended High-Pass: 33 Hz
• Sensitivity (1 W/1 m): 99 dB
• Max SPL (calculated): 131 dB
• Power Handling: 400 W continuous, 800 W program, 1600 W peak
• Nominal Impedance: 8 ohms
• Minimum Impedance: 6 ohms
• Internal Low-Pass Filter: None
• Coverage: Omnidirectional in normal operating range
• Inputs: 2x 4-pin Phoenix/Euroblock screw terminals, up to 10 AWG
• Enclosure: 13-ply weather-resistant birch
• Suspension: 28x M10 threaded points
• Dimensions (H x W x D): 30.26 x 26.60 x 28.60 in (768.6 x 675.6 x 726.4 mm)
• Net Weight: 101.2 lb (45.9 kg)
• Version: EVCoat, black (interior use)
• Grille: 16 GA galvanneal, powder coat, screen behind
• Environmental: IEC 60529 IP44

In the Box

• EVI-M10K eyebolt kit (four M10 shoulder eyebolts, four fender washers)
• Engineering data sheet