Great thread. FWIW my combo of Wharfedale Heritage Lintons and REL T5i connected with Mogami cables, including speaker-level custom Neutrik to the sub, is a dream date. Easy to make the sub disappear. The REL volume knob is click equipped, so I keep it at one setting for daily casual listening…and turn it one click lower volume for louder active listening events, LOL REL set to roll off at about 55 Hz on upper end. Vintage recapped Crown PS-200 pushes 135 +/- wpc into 4 ohms.
The Lintons and the REL have similar drivers - fast/tight 8” woofers which I unscientifically think helps them blend.