Recommended Links

CommonSense Audio

Acoustical Solutions_(room treatments)

AMB Laboratories--DIY Projects

Audio Extasa (European Vintage Audio)

Audio Nirvana--Denmark

CRS Acoustics Speaker Cabinets

Electron Addict Vacuum Tubes

Fishbone Custom Bass Guitars

High End Audio--Dominican Republic

Inlow Horn Cabinet Designs

Intimate Sound Enclosures

Italian Art Speakers

KMA Audio Speaker Cabinets 

KR Audio Products_(retail audio)

Portable Speakers

Pure Audio Project

Salvage Audio Speaker Cabinets

Shig Shop Speaker Plans

Spectrum Audio--Germany

Stereomanuals.com

Sutter Custom Guitars

Tube Sound Audio--Australia

Vintage Amplifier Restoration

Vintage Audio World

World Tube Audio Links