Oldest item is a HC DR, which I think is a mere 6 years old. 200 was repaired and fully serviced by Naim; XPS2 was recapped at broadly the same time. 202 has never been touched but just does what it does. CDX2 is lulling me into a false sense of security at 17 years of age.
All that said, tonight I’ve done some experimenting. Mrs. H. insists we have a table lamp next to the CDX2. I’ve lifted the power cable for that off the floor as it was winding its way betwixt speaker and other cables. It now rests on the back of the top shelf of Hutter in my left column begin my CDX2 but below the Hi-Line and Burndy and at a right angle to them. It also crosses my Powerigel mains lead at a right angle. Slight improvement immediately.
Then did a bit of fiddling so the Burndy no longer touched the floor. Also flexed the Hi-Line outwards as that was also touching the floor.
Both of us detected more warmth (so indication of a boost to the mids I’d suggest); a slight loss of detail but a slight increase in bass.
I’ve then noted that my spare Powerigel cables were too close to the speaker cable so I’ve moved the cables away and moved the unit itself away from the speaker cable and NAPSC, which sits on the floor behind my right speaker. It’s closer to the shelving with the 202 and CDX2 but again a slight improvement in bass albeit with a slight loss of grip.
I’m not sure any of this is the actual problem but it’s good practice and helps rule stuff out.
It occurred to me that my stacking order is fine but the reason both the Burndy and Hi-Line are potentially an issue is that the two Hutter columns are a little too close together. There’s not scope for a dramatic improvement but a shift of the left column towards the right speaker by a couple of inches is feasible.
It really shouldn’t be this hard though.