The Shockwave-15 pair delivers deep, punchy low-end bass for DJs, live sound engineers, and venue operators who need professional subwoofer performance without breaking the budget. These powered 15" subs handle medium-sized venues, clubs, and outdoor events where impactful bass response makes the difference between a good show and a memorable one.

Each cabinet pumps out 500 watts RMS (1000 watts peak) through a built-in Class D amplifier, providing clean, efficient power that won't overheat during long sets. The 15" woofers with 3" voice coils and 70 oz magnets reproduce frequencies down to 40 Hz, giving you the chest-thumping lows that make dance floors move and live music come alive.

The adjustable low-pass filter (40-250 Hz) and 150 Hz crossover point let you dial in the perfect blend with your main speakers, while the 100 Hz low-cut outputs allow daisy-chaining additional powered speakers without unwanted bass overlap. At 123 dB max SPL with less than 0.1% THD, these subs maintain clarity even when pushed hard.

Perfect for mobile DJs covering weddings and corporate events, bands playing clubs and outdoor festivals, or churches and schools needing reliable bass reinforcement for audiences up to 400 people. The compact 23" x 19" x 21" footprint fits in most vehicles and venues where space is tight.

Connect via dual XLR inputs and outputs for easy integration with any mixer or powered speaker setup. Each cabinet includes pole mount hardware and weighs 62.7 pounds. Seismic Audio backs every Shockwave-15 pair with a one-year warranty and ships ready to perform out of the box.

Technical Specifications

Frequently Asked Questions

What size venues work best with the Shockwave-15 pair?

These subs handle medium-sized venues comfortably, including clubs, wedding receptions, corporate events, and outdoor festivals with crowds up to 400 people. The 123 dB max SPL provides enough headroom for dance music and live bands without distortion. For smaller venues under 150 people, you might only need one cabinet, while larger venues over 500 people may benefit from additional subwoofers.

What cables do I need to connect the Shockwave-15 subwoofers?

You'll need standard XLR cables to connect from your mixer to the first subwoofer, then from the first sub to the second using the XLR outputs. The dual XLR inputs and outputs make daisy-chaining simple. If you're connecting additional powered speakers, use the 100 Hz low-cut outputs to prevent bass overlap and maintain clarity in your full-range speakers.

Can I use just one Shockwave-15 instead of buying the pair?

While one subwoofer works for smaller venues and intimate settings, the pair provides balanced bass coverage and prevents hot spots where one side of the audience gets more low-end than the other. Two subs also give you 1000 watts RMS total power and better headroom for peak moments. Most DJs and bands find the stereo bass image from a pair worth the investment.

How does the adjustable low-pass filter work?

The variable low-pass filter lets you set the upper frequency limit from 40-250 Hz, controlling how much overlap exists between your subwoofers and main speakers. Start around 80-100 Hz for most applications, then adjust based on your main speakers' bass response. Higher settings work well with smaller main speakers that don't reproduce deep bass, while lower settings suit larger mains with extended low-frequency response.

Do these subwoofers need external processing or EQ?

The Shockwave-15 includes built-in protection circuitry, thermal management, and basic controls for most applications. The adjustable crossover and low-pass filter handle integration with your main speakers. For advanced users, external DSP can provide additional EQ and limiting options, but these subs perform well with just mixer-level adjustments for volume and basic tone shaping.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov