The SA-DR12 replacement diaphragm delivers professional JBL-compatible performance for live sound engineers, venue technicians, and mobile DJs who need reliable compression driver repairs. This 16-ohm titanium dome diaphragm restores your JBL compression drivers to original specifications without the premium price tag.

Built with a precision titanium dome design, this diaphragm matches the frequency response and output characteristics of original JBL parts. The 3.91-inch voice coil diameter and 5-inch overall diameter ensure proper fitment in your compression driver assembly, delivering consistent high-frequency reproduction for live sound applications.

The SA-DR12 works as a direct replacement for JBL part numbers D16R2550 and D16R2451SLJ, fitting compression drivers including the 2446, 2446J, 2447, 2447J, 2450, 2450J, 2451, 2451J, 2451SLJ, 2452, and 2452J models. At just 0.12 pounds, this lightweight diaphragm maintains the power handling and impedance matching your PA system requires.

Use this replacement in church sound systems, concert venues, DJ setups, and touring rigs where JBL compression drivers handle mid and high-frequency duties. Whether you're maintaining a permanent installation or keeping backup parts for mobile events, this diaphragm keeps your horn-loaded speakers performing at peak output.

Installation requires basic compression driver disassembly following standard procedures for your specific JBL model. Each diaphragm ships ready to install with matching specifications to original equipment. Seismic Audio backs the SA-DR12 with a one-year warranty and fast shipping to minimize downtime.

Technical Specifications

Frequently Asked Questions

How do I know if this diaphragm fits my JBL compression driver?

Check your compression driver model number against the compatible list: 2446, 2446J, 2447, 2447J, 2450, 2450J, 2451, 2451J, 2451SLJ, 2452, and 2452J. If your driver uses JBL part numbers D16R2550 or D16R2451SLJ, the SA-DR12 is a direct replacement. The 16-ohm impedance and 3.91-inch voice coil diameter must match your original diaphragm specifications.

What tools do I need to install this replacement diaphragm?

Installation requires basic hand tools for compression driver disassembly, typically including screwdrivers and possibly needle-nose pliers depending on your specific JBL model. You'll need to remove the horn, unscrew the front plate, and carefully replace the diaphragm assembly. Follow JBL's service manual procedures for your specific compression driver model to avoid damage.

Will this diaphragm sound the same as the original JBL part?

Yes, the SA-DR12 uses the same titanium dome construction and voice coil specifications as original JBL diaphragms. The frequency response, power handling, and impedance match original equipment performance. You'll maintain the same high-frequency clarity and output levels your PA system was designed to deliver.

How long should I expect this replacement diaphragm to last?

With proper installation and normal use in live sound applications, the SA-DR12 should provide years of reliable service matching original JBL component lifespan. Avoid overdriving your compression drivers beyond rated power limits, and protect against moisture and physical damage. The one-year warranty covers manufacturing defects and premature failure under normal operating conditions.

Can I use this diaphragm in other brand compression drivers besides JBL?

This diaphragm is specifically engineered for JBL compression drivers and their exact mounting dimensions, voice coil diameter, and impedance requirements. Using it in other brands may result in poor fitment, incorrect frequency response, or damage to your equipment. Stick to the listed compatible JBL models for guaranteed performance and proper operation.

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