• A spare-tire well fiberglass subwoofer for my car
• "El Uglito" - a small 4th order bandpass system
• My center channel project
• A subwoofer based on Madisound's INF10 driver
• Car subwoofer with cabin-gain compensation
• A sealed car subwoofer
• A sealed car subwoofer (upgraded)
• Retrofitting a subwoofer
• INF10 4th order bandpass subwoofer
• INF10 dipole bass woofer
• Acoustech Labs SA6.5B "upgrade"
• Hyundai Tucson car audio upgrade
• A "proof of concept" tapped pipe
• A "proof of concept" tapped horn

Other DIY audio projects hosted on this site

• A multimedia system (Bill Eckle)
• The "Marriage Made in Heaven" (Bill Eckle)
• Multimedia Amplifier with x-over (Bill Eckle)
• An Audio/Video Cabinet (Bill Eckle)
• Measuring a Car's Transfer Function (Jason Cuadra)
• Car Tweeter Placement Exercise (Jason Cuadra)
• Alternator Whine Exercise (Jason Cuadra)

DIY speaker projects on the Internet

• Stryke's Vifa MTM project (John E. Janowitz)
• ES Twin ISO 8 (James Lehman)
• Mattias Sandgren's DIY Audio Pages (Mattias Sandgren)
• An Active Dipole Sub (Geet Maddens)
• 3 Guys' Speaker Project (Arjen, Gary, Monte)
• www.kaiaudio.com (Kai Stark)

Miscellaneous DIY projects

• Radio-Shack SPL Meter Mods (Eric Wallin)
• DIY Speaker Testing Microphone Preamp (Eric Wallin)
• Active X-over kit for DIY Speaker Builders (John Pomann)
• JBL BassWave modifications
• Using impedance graphs