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Alto Black 18" Active Subwoofer 2400W  

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Alto Professional's Black Series is a full line of elite speaker systems, each designed to exacting standards with premium, purpose-matched component...Read More

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Powerful bass module.

Alto Professional's Black Series is a full line of elite speaker systems, each designed to exacting standards with premium, purpose-matched components and immense built-in power. Black Series speakers have been designed with one goal in mind: satisfying the ears of your audience with the most gratifying and immersive sound experience they've ever had. Both Black Series subwoofers-the Black18S and Black15S-has been crafted to thunder with finely tuned sound in a virtually limitless variety of applications: from touring rigs to permanent installations and everything in between. And with 2400 watts of peak power each one comes equipped to thrill.

Beyond their differences in transducer size, each Black Series sub contains the same 2400 watts of earth-shaking, low-end power and specifically crafted, purpose-matched components for maximum efficiency. Designed and tuned in the USA, the Black18S and Black15S both come with stereo inputs and outputs, adjustable level and polarity controls and precision-engineered cabinets, which have been designed to deliver maximum sonic impact.

Black Series subwoofers are precise and fine-tuned. And they're not fragile. Each one comes ready for pretty much anything you can throw at it-even their rubber feet are reinforced with steel. Perfect for touring rigs, mobile DJs and other on-the-road applications, each Black Series sub has a heavy-duty 18 mm hardwood plywood cabinet, which is covered in a rugged, extremely durable scratch-resistant finish. They're also surprisingly easy to carry with comfortable, custom-molded handles.

Your audience is waiting to be amazed, and that's what Black Series subwoofers offer. They're ideal for installation in amphitheaters, clubs and more. With a Black Series sub, your audience will hear-and feel-high-powered, thunderous bass that delivers a breathtaking sonic experience.

  • 2400 Watts peak Class D power (1200 Watts continuous)
  • Powerful 18" low-frequency, long-excursion driver
  • Stereo inputs: Mic/Line left channel, XLR right channel
  • Stereo XLR outputs: left link, right mono, internal crossover on through
  • Specifically crafted, purpose-matched components for maximum efficiency and industry-leading power
  • Adjustable level and polarity controls
  • Switch to turn off logo LED
  • Portable design with comfortable, custom-molded handles
  • 18 mm hardwood plywood vented cabinet
  • Rugged, highly durable scratch-resistant finish
  • Extremely durable powder-coated steel speaker grille
  • Steel-reinforced rubber feet
  • Standard 35 mm pole socket
  • Designed and tuned in the U.S.A.

Order today for big bottom.


Black 18" Active Subwoofer 2400W

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

    Alto Videos

  • How to use the Alto Professional Li 37Pnfoe6crY
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Review Snapshot®

by PowerReviews
AltoBlack 18" Active Subwoofer 2400W

(based on 2 reviews)

Ratings Distribution

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Reviewed by 2 customers

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By Chuyin

from Austin Tx

About Me Student

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  • Attractive Design
  • Easy To Set Up
  • Good Power Output
  • Great Sound Quality
  • Loud


  • Heavy / Bulky

Best Uses

  • DJ / Mixing
  • Larger Rooms
  • Outdoors
  • Smaller Rooms

Comments about Alto Black 18" Active Subwoofer 2400W:

I have had one of these for a couple of months now. I am a college student who djs for many school events. I play anything form country, dubstep, hip hop, reggaeton, bachata, merengue, salsa and much more. Honestly I was very skeptical about this speaker. I decided to give it a chance since I really don't care much for brands. I was really Impressed by how loud this speaker got. I paired it with two 1000 watt mains and this speaker never clipped. Still unsure if it was worth the money I compared it with my friend's qscs and jbls. He who has been an audio tech for many years now was surprised that they actually sounded as good if not better.

Overall I love this speaker and will most likely get another.

  • Was this a gift?:
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(5 of 5 customers found this review helpful)


Beats the competitors OUTPUT AND FEATURE


from philadelphia, PA

About Me Pro Audio / DJ, Tech Savvy

Verified Reviewer


  • Attractive Design
  • Bass
  • Great Output
  • Great Sound Quality


  • A little heavy

Best Uses

  • Clubs
  • DJ / Mixing
  • Outdoors

Comments about Alto Black 18" Active Subwoofer 2400W:

Earlier this year 2014.... I decided to buy a new powered subwoofer. The common notion was I wouldn't be "HEARD" If I did not go with the norm (kw181 elx118,prx618,etc) I asked Mike G. to hear the alto because It was similarly priced and seemed like a nice design. He went back and forth with the Alto BLACK sub vs the other subs and I was blown away. Obviously every sub will sound different with gain structures and input gains dependent on brand and manufacturer but for some reason there was a low 29-40 hz(my guess) bass coming out the alto sub that was missing from the other subs. We played a few songs with some serious low end and I said (whoa ) is that coming from that ALTO BLACK.... he said YES..... After That I was SOLD..... After that initial Purchase I ended up getting 3 more units and now have 4 units total. These subs have an unbelievable sound and outperform MOST subs in the price range. Mike Let me sit in that room for an hour and a half and play with that sub. Im sure he missed out on some sales but thats the best customer service you can possibly give. Im sure he was happy after I decided to purchase the subs. Im a very very very happy customer.

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