The SA-DR10 replacement diaphragm gets your Altec compression drivers back online when the original fails. Built for sound engineers, venue techs, and bands who rely on Altec 288, 291, 299, and 299-AT drivers in their live sound rigs.

This 8-ohm diaphragm delivers the same frequency response and output as your original Altec component. The 2 7/8" voice coil and 4 1/8" diameter match OEM specifications exactly, ensuring your horn-loaded speakers maintain their original sonic character and SPL capability.

The diaphragm fits directly into your existing Altec compression driver without modification. At just 0.11 pounds, it's lightweight enough to keep as a spare in your road case or venue toolkit. The construction mirrors Altec's original design, so you get reliable performance whether you're running a club PA system, church sound reinforcement, or touring live sound rig.

Essential for venues, rental companies, and bands who can't afford downtime when a driver fails mid-show. Whether you're running a 200-person club or a festival stage, a blown diaphragm can kill your high-frequency coverage instantly.

Installation requires basic driver disassembly – no special tools beyond standard screwdrivers. The diaphragm ships ready to install.

Seismic Audio backs the SA-DR10 with a one-year warranty and ships fast when you need emergency replacement parts for your pro audio system.

Technical Specifications

Frequently Asked Questions

How do I know if this diaphragm fits my Altec driver?

The SA-DR10 works with Altec models 288, 291, 299, and 299-AT compression drivers. Check your driver's model number, usually stamped on the magnet assembly or driver frame. If you have a different Altec model, this diaphragm won't fit properly.

What tools do I need to replace the diaphragm?

You'll need basic screwdrivers to remove the driver from the horn, disassemble the compression driver housing, and access the old diaphragm. Most Altec drivers use standard Phillips head screws. Work in a clean environment to avoid getting debris in the voice coil gap.

Will this sound exactly like my original Altec diaphragm?

Yes, the SA-DR10 matches the original specifications for impedance, voice coil diameter, and construction materials. Your horn's frequency response and sensitivity will remain the same, so your EQ settings and system tuning won't need adjustment after installation.

How long does a replacement diaphragm typically last?

With normal use, a quality replacement diaphragm should last several years. Lifespan depends on power handling, venue conditions, and whether you're driving the system into clipping. Avoid over-driving and keep dust out of the horn throat to maximize diaphragm life.

Can I use this as a spare part for my touring rig?

Absolutely – at 0.11 pounds, the SA-DR10 takes up minimal space in a road case. Many sound companies keep spare diaphragms for their most critical drivers, especially for high-frequency horns that handle vocal clarity in live sound systems.

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