Electro-Voice QRx 118S technical specifications Key Features, General Description, QRx118S

QRx118S

18” Subwoofer

Loudspeaker System

Key Features:

•Loaded with a concert-proven EVX-180B woofer for maximum power-handling

•Available in black and by special order in white

•EV comfort-lift handles

•Comes with metal socket for elevating a two-way system

•13-ply birch plywood enclosure finished in Futuratm

General Description:

The QRx-118S is a dedicated subwoofer loudspeaker system that incorporates the EVX-180B 4-inch voice coil driver for maximum LF reproduction power with minimum box volume. This vented, 600-watt system easily provides 131 dB SPL1 @1 w/1 m (137 dB peak1) at full power in a rectangular enclosure that is stable and readily stacks for extra energy or slides easily under even the lowest stages. The QRx-118S cabinet has recessed side safety handles for ease of transport and includes 1-3/8-inch pole mount receptacle for use with full range cabinets without the need for extra mounting stands. The rear of the cabinet includes four 1/4-20 threaded T-nuts for affixing casters or dollies.

Technical Specifications:

System Configuration:	Subwoofer
Freq. Response (-3 dB):	45 Hz - 150 Hz
Freq. Response (-10 dB):	30 Hz - 250 Hz
Recommended High-	36 Hz, 12 dB/octave minimum
Pass Frequency:
Recommended Crossover	100 Hz, 24 dB/octave
Frequency Range:
Axial Sensitivity, SPL1:	98 dB (1 watt@1m)
Max Calculated SPL
Long Term1:	131 dB
Peak1:	137 dB
Long-Term Power	600 watts
Handling:
Short-Term Power	2,400 watts
Handling:
LF Transducer:	EVX180B Cast Frame 18-inch
	Woofer, 4" Voice Coil
Impedance:	8 ohms
Enclosure Material:	13-Ply Birch Plywood
Grille:	Powder-Coated 16-GA Steel, Fabric
	Backed
Input connectors:	(2) Neutrik Speakon NL4's
Dim (H x W x D):	35.5" x 17.7" x 23.6"
	(902mm x 450mm x 599mm)
Net Weight:	100 lbs (45 kg)
Shipping Weight:	109 lbs (49 kg)

1Half Space Measurements.