Howdy, Setup: a) Arcam SA20 integrated amp b) Bluesound node 2i 3) Yamaha 600 CD player 4) B&W CM5 speakers 5) SVS SB12 NSD subwoofer. The Arcam has a preout. The sub has a low level in, line out, high pass out. I've always used my subwoofer with an AVR which handled bass management. I now have a 2 channel integrated amp. I'm not dead set on going 2.1 but I need to listen this way to make up my mind. I'm confused about the proper way to connect the sub to the amp. It appears there are a few ways to feed the sub a signal so I'll post a few photos and some diagrams. I'd appreciate any help I can get with this. I should say don't assume I'm familiar with terminology. I kind of need detailed descriptions of what wire/cable goes out from where and in to where. Thanks. (Ideally if possible I'd like to engage crossover of the mains to the sub at 80Hz. My subs high pass out has an 80Hz set point but I'm not sure if that's an option. [ATTACH=full]1225[/ATTACH] [ATTACH=full]1227[/ATTACH] [ATTACH=full]1228[/ATTACH]