Block Diagram:

Frequency Response:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dimension Drawings (Standard Model):

Dimension Drawings (Rigging Model):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Top View

Top View

Front View

Side View

Rear View

Front View

Side View

Rear View

Performance Match:

WARNING: Suspending any object is potentially

EV P1202 Modular Precision Amplifier

dangerous and should only be attempted by

M-218S plug-in controller module

individuals who have a thorough knowledge of the

EV P3000 Precision Series Amplifier

techniques and regulations of rigging objects

Dx38 Digital sound system controller

overhead. Electro-Voice®strongly recommends that QRx

AC-One analog sound system controller

speakers be suspended taking into account all current national,

Included Accessories:

federal, state and local regulations. It is the responsibility of the

34-in. Mounting Pole (Not available on Rigging Model)

installer to ensure that QRx speakers are safely installed in

accordance with all such regulations. If QRx speakers are

(2) Ancra Single-Stud Fittings (Available only on Rigging Model)

suspended, Electro-Voice®strongly recommends that the

QRx218S Part Numbers:

system be inspected at least once a year. If any sign of

301117-001 QRx-218S, black Futura finish

weakness or damage is detected, remedial action should be

301117-002 QRx-218S, white Futura finish

taken immediately.

301144-001 QRx-218S with rigging, black Futura finish

 

301144-002 QRx-218S with rigging, white Futura finish

 

12000 Portland Avenue South, Burnsville, MN 55337 Phone:952/884-4051, Fax:952/884-0043

www.electrovoice.com

© Telex Communications, Inc. 10/2002

Part Number 38109-905 Rev C

U.S.A. and Canada only. For customer orders, contact Customer Service at:

800/392-3497 Fax: 800/955-6831 Europe, Africa, and Middle East only. For customer orders, contact Customer Service at:

+ 49 9421-706 0 Fax: + 49 9421-706 265

Other International locations. For customer orders, contact Customer Service at:

+ 1 952 884-4051 Fax: + 1 952 736-4212 For warranty repair or service information, contact the Service Repair department at:

800/685-2606 For technical assistance, contact Technical Support at: 866/78AUDIO

Specifications subject to change without notice.

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Electro-Voice QRx 218S Frequency Response, Performance Match, Included Accessories, QRx218S Part Numbers

QRx 218S specifications

The Electro-Voice QRx 218S is a high-performance subwoofer designed to deliver deep, impactful bass for a variety of live sound applications. With its rugged build and advanced acoustic technologies, this subwoofer meets the demands of professionals in the audio industry, making it an ideal choice for concert venues, clubs, and events.

One of the standout features of the QRx 218S is its dual 18-inch woofers, which provide exceptional low-frequency output and clarity. With a frequency response that extends down to 30 Hz, this subwoofer is capable of reproducing the full range of bass frequencies, making it an excellent choice for music genres that rely heavily on low-end sound, such as electronic, hip-hop, and rock.

The subwoofer is equipped with a high-power handling capability, allowing it to handle substantial amplifier power. This is crucial for delivering high sound pressure levels without distortion, ensuring that the performance remains consistent even in large venues. The QRx 218S features a robust cabinet design constructed from durable materials, which not only enhances its longevity but also contributes to its superior acoustic performance.

In addition to its powerful woofers, the QRx 218S utilizes advanced technologies such as the EV's signature metal grille and a weather-resistant finish, making it suitable for outdoor events. This design ensures that the subwoofer can withstand adverse weather conditions while still delivering outstanding audio quality. Furthermore, the cabinet is engineered for optimal airflow, which helps to keep the components cool during extended use.

The QRx 218S offers flexible connectivity options, allowing it to be easily integrated into various sound systems. With satellite speaker connections and rigging points, the subwoofer can be used in both ground-stacked and flown configurations, providing versatility for different setups.

Additionally, the QRx 218S is designed with roadworthiness in mind. The heavy-duty wheels on the cabinet make transportation easy, while the reinforced corners add extra protection during transit. This focus on portability and durability ensures that audio professionals can rely on the QRx 218S to perform excellently gig after gig.

Overall, the Electro-Voice QRx 218S subwoofer combines robust engineering, advanced technology, and user-friendly features to deliver an impressive low-frequency performance for any sound reinforcement application. Its versatility, durability, and powerful output make it a go-to choice for those seeking high-quality bass in live sound environments.