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Electro-Voice ETX-18SP 1800W 18 inch Powered Subwoofer , $2,099.00 - Add to Cart Skip to Product Information

Electro-Voice ETX-18SP 1800W 18 inch Powered Subwoofer

1,800-watt Powered Subwoofer with 18" LF Driver and DSP
Electro-Voice ETX-18SP 1800W 18 inch Powered Subwoofer
Electro-Voice ETX-18SP 1800W 18 inch Powered Subwoofer

Or we have a Certified Open Box model for just $1,889.10! Learn more
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Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.
Only 4 left in stock! More on the way.
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Electro-Voice ETX-18SP 1800W 18 inch Powered Subwoofer
In Stock!

This item is not available for local pick-up. Place your order now and your gear will be on its way to you!

Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.
Only 4 left in stock! More on the way.

Top-of-the-line Subwoofer for Concert-quality Sound

This article was Written By

Our Product Research Team

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The Electro-Voice ETX-18SP packs concert-quality sound into a tidy, easy-to-use powered subwoofer. Its efficient Class D amplifier pumps 1,800 watts through a high-sensitivity transducers providing you with thumping bass and earth-shaking output. Everyone onstage will appreciate the significant reduction in stage noise, courtesy of EV's exclusive Cardioid Control Technology. Digital signal processing puts a range of performance optimization and protection tools at your fingertips. And the Electro-Voice ETX-18SP's rugged wood enclosure will easily tackle the rigors of touring.

Build your system around this flexible subwoofer

The ETX-18SP features two XLR/TRS combo inputs that accommodate the connection of just about any piece of gear. Flexible gain controls, adjustable delay, peak and temperature limiters, automatic output reduction, and a plethora of other useful features make calibrating your system a piece of cake. And the ETX-18SP is linkable to a speaker or another sub via a Mixed Output jack.

Tour-quality sound with trouble-free setup

It's easy to achieve a great-sounding performance with the Electro-Voice ETX-18SP. Its high-efficiency Class D power amplifier yields a maximum SPL of 135dB — more than enough to shake the venue. FIR-Drive uses DSP to optimize transducer linearity. QuickSmartDSP provides effective system optimization with presets for your application (Music and Live) and location (Normal and Cardioid). You can also tailor your sound to the venue with Room EQ. And EV's Cardioid Control Technology provides a significant reduction in stage noise when multiple subwoofers are deployed.

The ETX Series — Electro-Voice's top-of-the-line speakers

Electro-Voice's ETX Series was engineered from the ground for uncompromising performance. At Sweetwater, we've found that these speakers deliver the perfect combination of concert-quality sound and critical versatility. Professional musicians, DJs, mobile entertainers, and rental companies looking to put together a high-end PA system will find much to love about the ETX Series. Top-quality components, EV's exclusive Cardioid Control Technology, efficient Class D amplifiers, and onboard performance optimization and protection features combine to deliver precise coverage and world-class sound. On top of that, everything is packed into low-profile tour-grade wood enclosures.

Electro-Voice ETX-18SP Features:

  • 1,800W Class D amplifier and 18" woofer
  • 135dB maximum SPL for earth-shaking output
  • Cardioid Control Technology provides a significant reduction in stage noise
  • FIR-Drive uses DSP to optimize transducer linearity
  • XLR/TRS combo inputs accommodate just about anything
  • QuickSmartDSP provides effective system optimization with presets for your application and location
  • Blower-controlled thermal management allows you to work in hot environments
  • Combo pole cup (insert and threaded) for easy speaker installation
  • Built-in handles and removable casters for easy transportation
  • Rugged, road-ready construction

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.