There are many very helpful sites in the Pro Audio industry.
Many have manuals and diagrams online.
Rane Pro-Audio Reference
another glossary
BILLZ SOUNDZ professional live sound reinforcement
hifiheaven.com's reference database
recording reference and history
Crown Audio Products
AB International
Decware audio and speaker repair
Speakerpage.com links page
Carlson Amps link page
suite101.com audio links
Signal Processing
