Factory provided AS-IS schematics for AS-133 preamp.

It is an intellectual property of the manufacturer [Analog Sound™] and is subject to copyrights. It is provided for the original purchaser’s own future repair / service purpose only.

It shall not be released to any 3rd party without written consent by [Analog Sound™] or its authorized reseller.

Posting on forums, and sharing on internet / social media in any format are strictly prohibited, and are considered as infringement on intellectual right rights, and could be subject to prosecution under applicable laws.