I am using a 113 in my main 2 channel system without a high pass filter on the mains with excellent results. Best sub I have ever had, easiest to integrate. I'm sure I don't have it dialed in perfectly, but it got so close on first brush, I've been qujite happy with it.
JL Audio Fathom 113 Hi Pass Filter
I am considering purchasing a fathom 113 sub to use for stereo 2 channel and double in a surround sound system. Will I be able to use the sub for the 2 channel stereo system without a high pass filter? If a high pass filter is required any recommendations?