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General articles and upgrades

• DIY loudspeakers design series
  1. Part I: Loudspeaker energy preservation
  2. Part II: Cabinet walls
  3. Part III: Filling in a loudspeaker
  4. Part IV: Choosing drivers...
  5. Part V: Calculating drivers acceleration
  6. Part VI: How to calculate and use driver air volume acceleration

• How to repair worn out woofers (refoaming made easy)
• How to repair/replace dust caps on woofers and midranges
• Easy tweaking for commercial loudspeakers - Part 1
• Easy tweaking for commercial loudspeakers - Part 2
• Crossover recapping - is it always for the better? Part 1
• Crossover recapping - is it always for the better? Part 2
• Paralleling caps on crossovers: pros & cons
• Tweeter felt tweak
• Upgrades and listening test for a pair of AR 94
• Upgrades and listening test for a pair of Spendor SP2/2
• DIY acoustic lens for tweeters
• The AK OB1 © - DIY open-baffle loudspeaker
• Woofer and tweeter level matching without resistors
• Monacor DT99 and DT300 tweeters: tests and tweaks

Our KITs

• The TNT PrimaLuce © - 3-ways + 3-decoupled cabinets floorstanding loudspeaker system - Part I (discontinued)
• The TNT PrimaLuce © - 3-ways + 3-decoupled cabinets floorstanding loudspeaker system - Part II (discontinued)

• The TNT Nues © - Floorstanding tower, two-way in acoustic suspension and D'Appolito layout
• The TNT Nues mkII © - Floorstanding tower, two-way in acoustic suspension and D'Appolito layout (April 2007)

• The TNT BFB Big Fun Box © - Floorstanding, fullrange loudspeakers with Fostex FE 204 single driver. Our easiest DIY design ever.
• The TNT Hotch ©: no crossover on the woofer speakers (June 2022)
• The TNT T-Speakers ©: full-range design suitable to be used with the T-Amp, using Audio Nirvana 8" full-range drivers (May 2006)
• An extreme organ pipe subwoofer (March 2013)
• An extreme organ pipe subwoofer - construction plans (March 2013)
• Four easy & inexpensive DIY designs (full-range, open baffle, transmission line etc.) - Part I (February 2015)
• Four easy & inexpensive DIY designs (full-range, open baffle, transmission line etc.) - Part II (February 2015)
• DIY horn cabinet for Tannoy 12" Dual Concentric drivers (July 2015)
• DIY horn cabinet for Goodmans Axiom 201 12" drivers (September 2015)
• DIY Onken cabinet for Altec Duplex 604-168X drivers (June 2017)
• DIY horn cabinet for Goodmans Axiom 80 10" drivers (February 2020)
• An extended Onken cabinet (July 2021)
• A bunch of DIY designs during lockdown - Part I - (June 2021)
• A bunch of DIY designs during lockdown - Part II (June 2021)

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