Read the Stereophile review of the KEF Blade 2 Meta using benchmark AHB2 monos. KAL R loved that pairing. I however think it will not be as good. I went through the AHB2 love and hate with my hard to drive Thiel CS3.7. No way I use the AHB2 on the easier to drive KEF Blade 2 Meta.
I read a ASR post of the AHB2 sound (which I love love on the KEF LS50 Meta). That post is how I feel and is written better than I can ever do.
Review and Measurements of Benchmark AHB2 Amp | Page 5 | Audio Science Review (ASR) Forum
I tried the Schitt Freya+ tube preamp for about 2 months with the AHB2 as a RAAL SR1a headphone amp. This was the only preamp that I could use with the AHB2 and bright SR1a.
BTW - I am looking at the $13K CODA #16 without the meters. I had the meters on the CODA #8. They were surprisingly useful with my RAAL SR1a headphones but a non-factor with my Thiel CS3.7 speakers.