12% OFF Total PURCHASE Over $249 Promo Code: SAVE12 Details

Alto Professional Black 18Sub 2400 Watt 18” Active Subwoofer

*Roll over image to zoom

*Click image to zoom


Orders received by 3PM ET ship same business day.
In-stock orders only.
Placed before 3PM EST
Mon-Fri (excluding Holidays).
Some exclusions apply.
Item#: BLACK18S
UPC: 0816311010955
Check In-Store Availability

I DJ NOW - Babylon, NY
Mon - Sat 10am - 8pm
Sun 11am - 5:00pm

I DJ NOW - Queens, NY
Mon - Fri 10am - 9pm
Sat 10am - 7pm
Sun 12 noon - 6pm

Financing Options Available

Financing Options Available:

Simply put, our financing plans allow you to get the gear you need now, at the price you want, with the time to pay, on your terms.

See How Easy It Is To Apply
Standard Shipping Charges Apply


The lowest price is not always the best price. When you shop with us, you can always expect to get our BestPrice+Plus guaranteed.

Learn More
Seen It For Less?
Usually ships in 5-10 Days

2-Yr Extended Consumer Priority Service:

Protect your investment with a warranty from Consumer Priority Service. Buying a Consumer Priority Service extended protection service plan from I DJ NOW, not only means you’re getting the highest level of customer service and peace of mind, but it also means you can rest assured in the event your product does need repairing. The repair center technicians are factory trained and authorized to repair your product and only use state of the art testing equipment needed to properly diagnose and repair your product. Why worry about not having a warranty long enough to cover the majority of use? Simply purchase this affordable and sensible extended warranty now and be worry free!

Questions? Contact Us.

About This Product

Alto Professional Black 18Sub 2400 Watt 18” Active Subwoofer

Alto Professional's Black Series is a full line of elite speaker systems, each designed to exacting standards with premium, purpose-matched components, wireless capability, and immense built-in power.


The Black 18 Sub features a powerful 18” low-frequency, long-excursion driver and 2400 watts of peak Class D power. Designed and tuned in the USA with carefully selected, complementary components, the Black 18 Sub comes stereo XLR outputs, and stereo inputs, with a Mic/Line input on the left channel, XLR on the right channel.


Even if you can’t get to the subwoofer, you can still adjust it. The Black 18 Sub comes equipped with wireless technology via the free Live Drive app. Level-match, adjust EQ, delay-compensation, and more—from anywhere in the room. It’s streamlined, sound-shaping control at your fingertips, so you can easily adapt the speakers to new venues or performances.


Perfect for touring rigs, mobile DJs, and other on-the-road applications, the Black 18 Sub comes ready for pretty much anything you can throw at it—even the rubber feet are reinforced with steel. Though surprisingly lightweight, the Black 18 Sub’s heavy-duty cabinet is covered in a rugged scratch-resistant finish, and speaker grille is powder-coated, ready for anything.

Black 18Sub Features:

• 2400 Watts peak Class D power (1200 Watts continuous).
• Unrivaled acoustic accuracy via advanced engineering and design.
• Works with free Live Drive app for wireless sound-shaping control.
• Wirelessly level-match, EQ, delay-compensation, and more.
• Stereo XLR outputs: left link, right mono, internal crossover on through.
• Rugged cabinet, scratch-resistant finish, powder-coated steel grille.
• Portable design with comfortable, custom-molded handles.
• Powerful 18” low-frequency, long-excursion driver.
• Stereo inputs: Mic/Line left channel, XLR right channel.
• Purpose-matched components for maximum efficiency.
• Adjustable level and polarity controls.
• Switch to turn off logo LED.
• Steel-reinforced rubber feet.
• Standard 35mm pole socket.
• Flyable via (12) M10 rigging points.
• Designed and tuned in the U.S.A.

Alto Black 18Sub Specifications

Dimensions (WxLxH): 20.6in x 28.4in x 24.7in
Weight: 95.5 lb

The Black 18Sub Box Includes:
(1) Alto Black 18Sub 2400 Watt 18” Active Subwoofer
(1) Power Cord
(1) User Guide