Originally Posted by B0dyK0unt
For clarification, I will be using the AVR bass mgmt (an onkyo 818). Using LFE in vs Line in on the fv15hp seems to still be up in the air.
I use the LFE input on the PEQ3 amp because there is more flexibility with crossover settings. This proved to be useful when dialing in to get the smooth transition at the crossover. Somewhere in this massive thread, Brian has mentioned that the range of LFE input is greater than the line in. By memory, the line in is limited up to 80Hz while the LFE can go up to 200Hz crossover.
The simple logic is that more flexibility the better.
Engaging the LFE input also ignores the line in (believe it was mentioned in previous posts). The only reason I can think of using line in is in pure direct mode by the AVR. In this mode of operation, there is no bass management being carried out and the full signal range is being sent to both the power terminals and pre-out terminals. As my front left and right has limited output in the low frequencies and I'd want to pass this over to the Rythmik sub, I'd then use the line in and set the crossover, phase accordingly. I'm planning to try out this experiment sometime latter on.
Maranatz NR1504, Oppo BPD-93, MTV 7000D, LG LW6500, aTV, WDTV Live, Harmony 650 remote, KEF E301, MiniDSP(2x4), Rythmik F12G