Subwoofer Settings

sorry to disappoint you

you need to tell us alot more than you have - what speakers, how is the room, what is the setup, what ancillary equipment

its complicated, because, well, it really depends on what you are working with...

only clear thing is you use the high pass connection in the sub (the sub does the lows, so you pass the highs... ya?) -- this if using an rca connection...

Sorry I’m frustrated. Don’t mean to be a dick.
Okay high pass. Good. LFE is for an AVR right? Do I use l/r RCA connection or just one?
Arcam SA20 integrated amp
B&W CM5 speakers
Frequency response ± 3dB 52 - 22000 Hz
SVS SB NSD sub
Yamaha CD600 CD player
Bluesound Node2i
Room is 10x14

Right now I don’t know a good starting point for crossover.

Hi Brian,
So, low-pass means, it passes low frequencies.  High-pass passes high frequencies.

You want a lowpass to the subs, high pass to the main. 
80 Hz is the THX standard and a useful starting point.

"You want a lowpass to the subs, high pass to the main."

In terms of connections could you spell it out for me?

Brian,
You are the one who used the terms.  If you have a sub, I suggest you start with the manual there.

Best,
E