The SA-DR3 replacement diaphragm brings JBL and Peavey horn drivers back to life when the original diaphragm fails. Built for sound engineers, venue techs, and mobile performers who need their high-frequency drivers working reliably for every show.

This 8-ohm diaphragm restores the crisp highs and vocal clarity that horn drivers are known for. The aluminum voice coil construction matches original manufacturer specifications, ensuring your speakers perform exactly as designed.

The SA-DR3 fits a wide range of professional drivers including JBL 075, 076, 077, 2402, 2402H, 2404, 2404H, 2404H-1, 2405, and 2405H models, plus Peavey HD 94 and compatible drivers. At 75mm diameter with a 1¾" voice coil, this diaphragm drops right into place without modification. The lightweight 0.01-pound component won't affect your speaker's balance or handling characteristics.

Whether you're maintaining a church sound system, keeping DJ monitors running for weekend gigs, or servicing PA systems for live venues, having replacement diaphragms on hand prevents costly downtime. One failed diaphragm can silence an entire horn driver, leaving vocalists and announcers struggling to cut through the mix.

Installation requires basic soldering skills to connect the voice coil leads to the driver's terminals. The diaphragm assembly includes everything needed for the repair.

Seismic Audio backs the SA-DR3 with a one-year warranty, and most orders ship the same business day to get your speakers back in service fast.

Technical Specifications

Frequently Asked Questions

How do I know if my diaphragm needs replacement?

A blown diaphragm typically produces no high-frequency output, distorted highs, or scratching sounds when the driver is powered. You might also notice vocals and cymbals becoming muffled or completely absent from your mix. Visual inspection may reveal a torn or separated diaphragm membrane around the voice coil assembly.

What JBL and Peavey drivers is the SA-DR3 compatible with?

The SA-DR3 works with JBL models 075, 076, 077, 2402, 2402H, 2404, 2404H, 2404H-1, 2405, and 2405H. For Peavey systems, it fits the HD 94 and similar horn drivers with matching specifications. Always verify your driver model number before ordering to ensure proper fitment.

Can I install this diaphragm myself or do I need a technician?

Installation requires basic electronics skills including soldering the voice coil leads to the driver terminals. You'll need to carefully remove the old diaphragm, clean the mounting surface, position the new diaphragm properly, and solder the connections. If you're not comfortable with precision soldering work, have a qualified audio technician perform the repair.

Will this diaphragm affect my speaker's sound quality compared to the original?

The SA-DR3 uses aluminum voice coil construction and matches original manufacturer specifications, so your horn driver will perform exactly as designed. You can expect the same frequency response, sensitivity, and power handling as the factory diaphragm. There should be no audible difference in sound quality after proper installation.

How long does shipping take and what's included in the box?

Most SA-DR3 orders ship the same business day, with standard delivery typically taking 3-5 business days. The package includes one 8-ohm replacement diaphragm assembly ready for installation. You'll need to supply your own soldering equipment and basic hand tools for the repair work.

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