The 1600W HD1801 18" Powered Subwoofer is the ideal companion to your HD Series full-range loudspeakers, creating an immensely powerful and truly high-definition PA system that you can actually transport from gig to gig. Class-D Fast Recovery™ amplification makes the HD1801 ultra-efficient, effortlessly delivering massive power to the 18" driver that’s custom-designed to handle the job. Expertly tweaked tuning filters, internal crossovers and protection circuitry are designed by EAW for the ultimate in professional performance. Take your Mackie HD (or any other) full-range system to the next level with the Mackie HD1801 Powered Subwoofer.A Massive System in a SnapYou’ve probably been to a large club or performance venue that has an installed PA that sounds amazing. You’ve probably dreamed of getting a similar system for your needs, but…you’ve got those pesky “bills” and “child support” to deal with and they are simply out of your reach. Well, an affordable and great-sounding alternative is now available. Just pair HD1801 subwoofers with HD1531 full-range loudspeakers for the ultimate portable, high-definition PA system. The precision-tuned HD1801 is the perfect match for the HD1531, with a high-pass output specifically designed to alleviate the power-hungry low frequencies from getting to your top boxes, allowing them to do what they do best. This powerful HD system features tons of protective circuitry like peak and RMS limiting and over-excursion/thermal protection to keep the sound pumping at all costs. If you need a high-output, simple PA system that compares to some of the most expensive systems out there…look no further than HD Series.Power and AgilityThe HD1801 Powered Subwoofer delivers 1600 watts of peak power using Mackie’s Class-D Fast Recovery™ amplification. Class-D amps allow for extremely high-output in a design that is much lighter than traditional amplifiers. Normally, a sub that can push that kind of power is no fun to lug around. Okay, we can’t promise a fun load in, but we can say that your subs are now probably lighter than your bassist’s rig. It’s also really compact, which means you might even be able to carry it all by yourself…sorry roadies. Plus, our Fast Recovery™ design allows the amplifier to recover more quickly when pushed into clipping. This means less distortion when things get too loud. Hey, we would just tell you to turn it down, but we’re not the cops or your old man neighbor.Tweaked and TunedMackie has once again called on the sonic geniuses over at EAW to make the HD1801 the most punchy, chest-pounding subwoofer in its class. The ported, direct-radiating design means super-low frequency extension that is smooth and powerful. EAW also custom specified the 18" driver to work in perfect harmony with the amplifier. Some of the other guys claim high wattage, but use limiters to reduce the amount of actual power that hits the speaker. That’s like buying a 40-year-old single malt scotch and mixing it with Mountain Dew. We would never do that to you… the woofer is designed to soak up each and every bit of power the amp puts out. Precision phase control and tuning filters make the HD1801the perfect companion to the HD1531, especially when using the high-pass outputs. A finely tuned, phase aligned and undeniably professional PA system is just a couple of patches away.It’s a Bird, It’s a Plane…it’s the HD1801Let’s face it. Most stages are pretty small. I mean, they want to pack in drink-buying people, not make room for on-stage tomfoolery. That’s why we decided to incorporate rigging points onto the HD1801. Flying subs clears up tons of floor space and looks, well…pretty darn impressive. You can even flip off that trademark “Mackie Blue” LED on the front if you want the HD1801 to blend seamlessly into the background. But, some of you are going to have to transport this guy from show to show. That’s why the HD1801 embodies Mackie’s “Built-Like-A-Tank” philosophy and is certifiably road-worthy. First off, the enclosure is built using 15mm birch. Wood is not only more durable than plastic, but delivers a more natural sound. Hey, we were founded by hippies and dig that natural stuff. But, outward appearances do matter, so we’ve covered the HD1801 in durable textured black paint that minimizes the risk of scratching. The grill is equally robust, made using powder coated steel and flush with the enclosure to avoid denting. Throw in the fact that is one of the most compact subwoofers available and you’ve got an ultra-professional bass bin that can be tossed in the back of your sub-compact, bio-diesel electric hybrid (like I said…founded by hippies).