As it may seem evident, I am trying to achieve this - active sub woofer which has LFE in, needs to get the feed from a stereo amp speaker out as the amp does not have pre out/LFE out, can anyone help in achieving this? Frequency control will be a boon. I am looking at this Sub Woofer Processing Low Pass Filter Circuit Finished Board with NE5532 Op Amp | eBay but am not sure it can take speaker level inputs, please help
Thanks
Shyamtanu
Thanks
Shyamtanu