The CoAx-15 coaxial speakers are designed for sound engineers, venue owners, and audio professionals building custom PA systems or replacing worn drivers in existing cabinets. These raw speakers deliver both low and high frequencies from a single source point, eliminating phase issues and providing consistent coverage across your listening area.

Each 15-inch coaxial driver handles 350 watts RMS (700 watts peak) with 98 dB sensitivity, providing substantial output for mid-sized venues without requiring massive amplifier power. The integrated T-yoke design ensures optimal high-frequency dispersion while the paper cone with cloth surround delivers natural midrange response.

The 8-ohm impedance works with most professional amplifiers, while the 40Hz to 18kHz frequency response covers the essential range for live sound reinforcement. The 3-inch low-frequency voice coil and 1.75-inch high-frequency voice coil are built for sustained use, backed by Y30 magnets totaling over 90 ounces of magnetic force per driver.

These speakers work well for club sound systems, portable PA rigs, and permanent installations handling crowds up to 200-300 people when properly powered. They're particularly effective for DJ setups where clear vocals and full-range music reproduction from a single driver simplifies system design.

The pressed steel chassis includes eight mounting slots for secure cabinet installation. Each driver requires a 13 5/8-inch cutout and measures 15 1/8 inches overall diameter with 8-inch mounting depth.

Seismic Audio backs these coaxial speakers with a one-year warranty and ships them ready for immediate installation in your custom enclosure.

Technical Specifications

Frequently Asked Questions

What size venue can these coaxial speakers handle?

A pair of CoAx-15 speakers can effectively cover venues up to 200-300 people when powered with adequate amplification (350+ watts RMS per driver). For larger spaces, consider adding subwoofers or additional full-range speakers to maintain even coverage and sufficient volume levels.

Do I need to add a subwoofer with these coaxial speakers?

The CoAx-15 provides bass response down to 40Hz, which covers most musical content adequately for many applications. However, if you're doing DJ work with heavy electronic music or need maximum low-end impact, adding a dedicated subwoofer will enhance the overall system performance and allow the coaxials to focus on midrange clarity.

What type of cabinet enclosure do these speakers require?

These raw drivers require a properly designed speaker cabinet - they cannot be used without an enclosure. The cabinet volume, porting, and internal bracing significantly affect the sound quality and power handling. Consider consulting speaker design software or established cabinet plans for optimal results with these 15-inch coaxial drivers.

What amplifier power do I need for the CoAx-15 speakers?

Each speaker handles 350 watts RMS, so you'll need an amplifier that provides at least 350 watts per channel at 8 ohms for full power operation. You can use smaller amplifiers, but you'll get proportionally less maximum volume. Most professional power amplifiers in the 400-500 watt range work well with these drivers.

How do coaxial speakers compare to separate woofers and tweeters?

Coaxial speakers offer simpler crossover design and eliminate phase issues between drivers since all frequencies emanate from the same point. However, separate component systems typically provide better high-frequency dispersion control and allow individual driver optimization. Coaxials excel in applications where simplicity and point-source coverage are priorities.

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