NHT SA-1 Subwoofer amp - schematic needed

[Joule Thief]

Does anyone have a link to, or have a pdf schematic for the NHT SA-1 subwoofer amp? Unfortunately, no info shows up in my searches thru Google.

The output circuitry and associated drivers seem fairly straight forward, but someone has been in this one before. Several small electrolytics seem to have been cut from the driver PCB.

Thanks in advance and happy holidays to all.