LFE vs High-level subwoofer connection, for FIDELITY

@jbuddha882 Yes, High Level is what you would want to use and not LFE if you are using it in a STEREO system setup. Never use LFE for anything other than SURRONDSOUND. LFE is for bass management in an AV receivers surround sound frequency functions to decoding the signal from the AV receiver and will send it to the sub. Line Level is a straight and direct signal that is and will always be the best connection to the sub in a stereo plus subwoofer system. You will have to adjust the bass frequencies from the subwoofer’s frequency controls on the back of the subwoofer or from an APP if the subwoofer has the access and functions to that format. Remember this is for stereo listening only when adding a subwoofer. Other than that, LFE input is strictly for home theater AV systems. But if you intend to use an AV receiver for your musical listening you can definitely and for sure use the LFE input on your subwoofer when listening to surround sound music. 

GOOD DAY AND PEACE TO ALL

@jbuddha882 

im looking at an anthem SA35 to get Dirac live in a system

I can’t speak for Anthem but an AVR is probably the worst thing you can do to add noise to ’fidelity’...for music. So if you go straight from your source (ie streamer) to amplifier, high level is the most obvious option. I can run two or more long RCA from my steamer, plus splitters to my subs around the room, or I can simply use a short lamp cord to high level it from the speakers to subs without having to run multiple cables all over the room to the AVR or integrated amp.

No I am not using the Onkyo for music, I just tested it against my reference 2 way system. My system is, AfterDark NetONE SFP network switch, externally clocked. Fiber fed, so galvanically isolated from the wall. The NetONE -> Holo Audio Red -> Gustard S26 -> Khozmo Acoustics flagship balanced Vishay Zfoil r2r volume control preamp -> Soul Note A-2 amplifier. Conditioned by Furman, externally clocked by a TEAC CG-10m-X clock. 

Side note. The largest sound improvements were: upscaling Roon to DSD 512 with a Mac mini m4, and adding a clocked SFP network switch with good S/FTP Ethernet cables

All I can say is that the technical folks at Rhythmik subwoofers strongly prefer the low-level input to the high-level input. They say that the low level provides better fidelity. At least with their amplifiers.