• 04-1996: A spare-tire well fiberglass subwoofer for my car
• 04-1998: "El Uglito" - a small 4th order bandpass system
• 06-1999: Car subwoofer with cabin-gain compensation
• 04-2000: A subwoofer based on Madisound's INF10 driver
• 12-2000: A sealed car subwoofer
• 04-2004: A sealed car subwoofer (upgraded)
• 05-2003: Retrofitting a subwoofer
• 04-2004: INF10 4th order bandpass subwoofer
• 04-2004: INF10 dipole bass woofer
• 10-2007: Acoustech Labs SA6.5B "upgrade"
• 02-2008: Hyundai Tucson car audio upgrade
• 08-2009: POC #1 - a tapped-pipe
• 08-2010: POC #2 - a tapped-horn
• 12-2012: "The "Chicken-Run Blastoramas"
• 12-2013: POC #3 - another tapped-horn
• 06-2015: POC #4 - the "B1" tapped-horn
• 04-2016: Blastoramas V2
• 08-2017: POC #3.1 - a minor upgrade to POC #3
• 08-2017: Boom Unit (Logitech X530 bass unit replacement)
• 12-2017: Mini-Me, V2
• 01-2018: POC #6 - an offset driver mass-loaded transmission line
• 02-2018: The "Enigma" Subwoofer
• 04-2018: Mordaunt-Short MS3-2 rebuild
• 05-2019: Rebuilding the Enigma
• 05-2020: Mission 751 rebuild
• 09-2020: The PITAs
• 04-2023: POC #7 - a 40 Hz straight TL (work in progress)
• 06-2023: Pioneer CS-44 improvements (work in progress)

DIYAudio projects

• The TH18 tapped horn subwoofer

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

• An Active Dipole Sub (Geet Maddens)

Miscellaneous DIY projects

• JBL BassWave modifications
• Using impedance graphs

Other

• Bluetooth Speakers - The Mifa Wildbox
• Bluetooth Speakers - The Tribit Stormbox Micro 2
• Bluetooth Speakers - The Earfun UBoom L