Articles – understanding audio better

Loudspeakers

Dome Tweeters – are manufacturers’ Response plots realistic?
Dome Tweeters – Is Flush Mounting Just Hype?
Bandpass Subwoofers – What you should know when you use a crossover
The Importance of Time Alignment
Time Alignment with Pioneer FH-X731BT Car Receiver
How to make speaker boxes and finish with staining

Amplifiers

Solid State Power Amplifier Designs – A 9-part article of basic audio amplifier typologies
Vintage Tube Power Amplifier Schematics