Integrated Amp Pairing for Harbeth 30.2

Most $13K speakers will easily outperform those Harbeths IME, even with an entry-level integrated, so I believe you’d be much better off upgrading the speakers with that budget. There are ≈$13K speakers (and much less with DIY options) that do everything better than a pair of 30.2s, even midrange and vocals. 
 

I do however agree with @mbmi that Audio Group Denmark (Aavik, Axxess) make some excellent integrateds in this price range that would likely have good synergy with Harbeths. I have a Forté 1 that I preferred to both the $9K Luxman 507Z and a Bel Canto E1X in a back-to-back comparison. It is a rarity of a SS amp in that its largest distortion harmonic is 2nd order. 

You may want to call the folks at Fidelis in NH who are the US distributors, great people who I’m sure will offer good advice.

I have Harbeth Super HL 5 Plus and used to power it with the top of the line Hegel integrated and I didn’t like the match. My local shop got me a deal on a lightly used Accuphase E-600 and it suits my needs perfectly. If I was younger it wouldn’t be enough power for me but at almost 60 it’s not lacking anything. There's much better matches with Harbeth than  Hegel. Nothing against Hegel. They have their place, but not so much with Harbeth IMO.

I always suggest Gryphon Diablo 300 unless there is a reason not to. I see no reason here, except that I have never heard Harbeth/Gryphon pair. Should be great, but it's my guess. Gryphon Dac and phono stage are excellent.

I have Harbeth Super HL 5 Plus and used to power it with the top of the line Hegel integrated and I didn’t like the match. My local shop got me a deal on a lightly used Accuphase E-600 and it suits my needs perfectly. If I was younger it wouldn’t be enough power for me but at almost 60 it’s not lacking anything. There’s much better matches with Harbeth than  Hegel. Nothing against Hegel. They have their place, but not so much with Harbeth IMO.

That’s useful. Hegel is highly recommended by the Harbeth designer but I don’t trust him after reading his views on amplifiers. Accuphase is nice. The E-650 is highly recommended by many and supposed to sound better than the 600.