The Quake 15 replacement woofer serves musicians, venue operators, and cabinet builders who need reliable low-frequency reproduction without breaking the budget. This 15-inch driver handles bass duties in PA speakers, floor monitors, and custom cabinet builds where punchy lows matter.

Built around a robust 50-ounce magnet and 2.5-inch voice coil, the Quake 15 delivers 200 watts RMS power handling with 400 watts peak capacity. The pressed steel chassis provides the structural integrity needed for high-output applications, while the paper cone produces warm, musical bass response that cuts through a mix without muddiness.

Operating at 4 ohms impedance with 95dB sensitivity, this woofer pairs efficiently with most amplifiers and provides solid output from moderate power levels. The 50Hz to 5kHz frequency response covers essential bass and lower midrange frequencies, making it suitable for full-range applications or as the low-frequency driver in multi-way systems.

Use the Quake 15 in venues accommodating up to 200 people, whether replacing blown drivers in existing cabinets or building custom PA speakers from scratch. It works well in church sound systems, club installations, and mobile DJ setups where consistent bass response is essential.

The driver connects via standard speaker wire to amplifier outputs or passive crossover networks. Each Quake 15 weighs 11 pounds and ships ready to install in your cabinet.

Seismic Audio backs the Quake 15 with a one-year warranty and ships nationwide, delivering professional-grade components at accessible prices.

Technical Specifications

Frequently Asked Questions

What size venues can this 15-inch woofer handle?

The Quake 15 works well in venues up to 200 people when properly powered and configured. Its 95dB sensitivity and 200-watt RMS handling provide sufficient output for churches, small clubs, and mobile DJ applications. For larger spaces, consider multiple drivers or supplemental subwoofers.

Can I use this woofer to replace a blown driver in my existing PA speaker?

Yes, the Quake 15 serves as a direct replacement for most 15-inch PA woofers with 4-ohm impedance. Check your cabinet's power rating and ensure it matches or exceeds the driver's 200-watt RMS requirement. Verify the mounting hole pattern fits your cabinet before ordering.

What amplifier power do I need to drive this woofer properly?

Match this 4-ohm driver with amplifiers providing 150-300 watts RMS per channel for optimal performance. The 95dB sensitivity means it produces good volume with moderate power, but having adequate headroom prevents distortion during peaks. Avoid underpowering, which causes more driver damage than moderate overpowering.

Does this woofer need a crossover or can it run full-range?

The 50Hz to 5kHz frequency response allows full-range operation in basic PA applications, though adding a high-frequency driver improves vocal clarity and overall sound quality. If building a multi-way system, cross over to tweeters around 2-3kHz for best results.

How does this compare to 8-ohm versions of the same driver?

The 4-ohm impedance draws more current from amplifiers, typically producing higher output levels than equivalent 8-ohm drivers. However, ensure your amplifier is stable at 4 ohms before connecting. Some amplifiers perform better with 8-ohm loads, so check your amp's specifications first.

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