You would connect a powered sub to the RCA outs I’m assuming. I would just let the sub do lpf and set the amp to flat. I would assume that it would be a high pass filter if it was effecting the actual speakers
You would connect a powered sub to the RCA outs I’m assuming. I would just let the sub do lpf and set the amp to flat. I would assume that it would be a high pass filter if it was effecting the actual speakers