Just seeing this post. I have the AH 2.1 updated to 2.2. Neither AH version is analytic, rather they are mellow and sweet and dynamic. and I am running into Nuforce V3SE's and prior to this this Nuforce V2SE. But I do have a sweet front in using NorthStar transport and DAC. I would suspect the front end as the AH and Nuforce are both very transparent. Also Nuforce needs power and vibration isoloation to sound its best, else can be edgy and analytic.
audio horizons
recently acquired a AH 2.1 preamp w/Siemens tubes. I find the preamp very analytic, precise & somewhat sterile. Not quite the front to rear as my Audible Illusions L-1 or as palpable. Anyone have this problem and did a change of tubes to 6922s or ? any info would help. Assoc equip, Exemplar 3910 and NuForce 8V2.