The Quake 12" Steel Frame Speaker Driver delivers reliable replacement power for DIY speaker builders and professionals repairing existing cabinets. This 4-ohm woofer handles 150 watts RMS (300 watts peak) with the durability needed for regular live sound use.

Built around a robust 50-ounce magnet and 2.5-inch voice coil, this driver produces solid low-end response from 55Hz to 5kHz. The pressed steel chassis provides the structural integrity that paper cone drivers need to maintain consistent performance under power, while the 97dB sensitivity ensures efficient output from your amplifier.

Whether you're building a custom PA cabinet, replacing a blown driver in your band's monitor wedges, or constructing speakers for a church sound system, this woofer fits standard 12-inch mounting configurations. The 4-ohm impedance works well in parallel wiring scenarios or when you need to match specific amplifier loads for maximum power transfer.

The driver mounts with standard hardware (not included) and connects via typical speaker wire to your amplifier or crossover network. At 10 pounds, it provides substantial magnetic structure without excessive cabinet weight.

Seismic Audio backs this replacement driver with a one-year warranty and ships it ready for immediate installation in your next build or repair project.

Technical Specifications

Frequently Asked Questions

What size cabinet works best with this 12-inch driver?

This driver works in cabinets designed for standard 12-inch mounting with approximately 1.5 to 3 cubic feet of internal volume. Ported designs typically need larger volumes than sealed enclosures. Check your cabinet's original specifications or use speaker design software to optimize the box tuning for this driver's parameters.

Can I wire multiple Quake 12 drivers together?

Yes, the 4-ohm impedance makes this driver suitable for parallel wiring configurations. Two 4-ohm drivers wired in parallel create a 2-ohm load, while series wiring creates 8 ohms. Make sure your amplifier can handle the final impedance load you create.

Will this driver work for bass guitar cabinets?

This driver covers the fundamental frequencies of bass guitar (55Hz and up) but may not provide the extended low-end response that dedicated bass guitar speakers offer. It works better for full-range PA applications or guitar cabinets where you need midrange presence along with low-end punch.

What happens if I exceed the 150-watt RMS rating?

Operating beyond 150 watts RMS risks voice coil damage and cone distortion. The 300-watt peak rating handles brief musical transients, but sustained high power will shorten the driver's lifespan. Match your amplifier output to stay within the RMS specification for reliable long-term use.

Do I need a crossover with this woofer?

For full-range applications, you'll want a crossover to protect this driver from frequencies above 5kHz and to blend it with tweeters. If you're replacing a driver in an existing cabinet, use the same crossover configuration as the original. For subwoofer-only use, a simple low-pass filter works well.

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