-Only using A speakers
-Small PSU input connected from FlatCap Power out A
-Link plug fitted to large PSU input
-Ignore the light grey cable, that is from the NAC 282 to the Headline
Indeed Ian - you’re right about some of the older Hicap socket configurations. I suspect the OP will have bought a Hicap DR to match the rest of the system, so socket 3 (being physically and electrically closer to socket 4) makes most sense here
@DiggyGun perhaps a pic will help - this from maybe the original connections guide.
I don’t think @Richard.Dane will mind me posting this, despite these were originally only circulated to dealers.
Long time active user here. Just a thought, IIRC the 82/282 does not fully utilise the scap, so it may be worth trying a switch in due course with hcap on pre and scap on snaxo. Others may have wider experience, I have only used scaps on both pre and snaxo. (There is another diagram which i can post, just posted the one to match your question.)
edit - you may know this, but if you wish to use scap with snaxo, putting hcap on pre, you will need the 16pin lead from scap to snaxo, which the other (not shown) diagram terms a 16pin snaic, but which is I think now known as a burndy!
As others have reported previously, the PS for the snaxo is one of the most important parts of an active system. My scap is deliberately the most isolated ps box in my racks (all fraims). If space is a premium try moving the boxes around to get the best result.
Active systems do I think require a little more than plug and play.
I read much here and post infrequently, believing others are better qualified to offer an opinion. However active is not widely used it seems. Hence I acknowledged that posts have been made on active threads. I have tried the suggestions and am delighted in the results, ordering longer i/cs where necessary to get an optimum separation.
IIRC the scap is more fully used via the burndy supplying the snaxo. 82/282 doesn’t use a burndy, when connected to a scap, so only part of the scap is used. Scap > snaxo then more of the supply rails are used. (With a 252 for example, a supercap does use a burndy connection.) @Richard.Dane will no doubt explain better than I.
Ultimately, with the variables of your own setup like room, shelves for the various boxes and how far you can keep the boxes apart, you may have to listen to each option, to determine which config best suits you.
It is a long time since I had an 82. I moved from hcap to scap when the opportunity arose, as a stepping stone to a 252. There have been threads comparing hcap, 2 x hcap and scap, mostly in passive systems. IIRC there was not a universal view that scap on a 82 / 282 was the best outcome.
Hope that helps, realising it’s a faff to keep moving things and not always practical, but listening tests will reveal the best combo.