6.5” Round Bolt-On Horn Diffuser
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DS18 PRO-SDF6R
6.5” Round Bolt-On Horn Diffuser
If you're running 6.5” midrange loudspeakers, DS18’s PRO-SDF6R is your secret weapon for sharper projection and cleaner vocals. This round bolt-on horn diffuser upgrades your front stage with a wide 90° dispersion, giving your mids the focus and range they’ve been missing.
Built for the Culture
Made from tough ABS with a clean matte black finish, the PRO-SDF6R adds an aggressive look to your setup—perfect for show builds or open-air street systems where every decibel counts.
Drop-In, Bolt-On
Designed for easy bolt-on installation, the PRO-SDF6R fits any standard 6.5" midrange speaker with matching bolt patterns (6.26"/159mm speaker pattern, 8"/205mm horn flange). It’s a direct performance upgrade for DS18 PRO-X, PRO-GM, or any comparable 6.5” loudspeaker that needs better throw.
Complete Your Car Audio System
Match this product with the rest of your build: shop more DS18 car audio, shop car audio wire, and use our guide on car audio wire gauge and fuse guide. For additional system planning, see car audio wiring diagram guide.
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