hello Earl K
Thanks for your valuable input. As I am not a DIYer, please correct me if I am wrong.
1) as 175 speaker terminals are spring loaded, stick one lead of the R1 resistor in the positive terminal and the other lead connected to the + speaker wire ,for the R2 resistor stick one lead into positive terminal and the other lead into the negative treminal. the negative speaker wire should also be in the 175 - terminal.
Am I right?
Also where can I find the web-site helping calculation those R1 /R2 value?
Thanks.