Change input voltage on Bash 500W sub amp

[dudaindc]

Thanks, Eva!

With the exception of the Bash500, all other Bash-based subwoofer amps I worked on use the first approach you described.
I am not aware of a third one though...

Would you have a sample schematics (or a back-of-the-napkin sketch) for the second one?

Thanks in advance!

D