The "inline filter" is kind of a "wakeup call" for me. Where I realize the merits of relieving the Amp of LF duty, I was not thinking of the positive attributes this provides in the speaker response realm.
So by the time I source terminals, caps, cryoed wire, and oversized shrink wrap, might as well have someone with such, put these together. Question is, with those having extra preamp outs, why the splitter as shown above, rather than a straight "inline" filter - amp plugin ?