Aiken Amplification, Inc. 

Greenwood, SC
Tel: 864-993-8383
Fax: 864-223-7136

Sales: click here
Technical support (for Aiken products only): click here 

Note: Technical support is for Aiken products only. Please do not call or email us regarding problems with other manufacturer's amplifiers or homebuilt projects.
 
As much as I would like to, I just don't have the time to provide detailed technical explanations or derive equations for circuits for each individual email I receive.
I have posted all the information I can on my website and made it available free of charge, and will continue to post new information as I have the time, but that's all I can promise!