@helomech This comment on the AHB2 and preamp is spot on. I tried the AHB2 with my RAAL SRIa headphones and it was too fatiguing with the Benchmark HPA4 preamp (which is great).
When I put in the CODA 07x preamp with another Class D amp for the RAAL SR1a it sounded very good but there was a tiny bit of harshness. Based on my years with the AHB2 I thought the AHB2 would work with the CODA 07x because it really does not add much to the signal. I thought this even though the AHB2 sounded bad with a whole bunch of other combos I tried for the SR1a.
It turned out that the AHB2 + CODA 07x and RAAL SR1a is an excellent combo. No fatigue at all and all I am hearing is the preamp + DAC.
I owned the Parasound A23 at the same time as the AHB2 and the AHB2 was so much better on my KEF LS50's.
When I put in the CODA 07x preamp with another Class D amp for the RAAL SR1a it sounded very good but there was a tiny bit of harshness. Based on my years with the AHB2 I thought the AHB2 would work with the CODA 07x because it really does not add much to the signal. I thought this even though the AHB2 sounded bad with a whole bunch of other combos I tried for the SR1a.
It turned out that the AHB2 + CODA 07x and RAAL SR1a is an excellent combo. No fatigue at all and all I am hearing is the preamp + DAC.
I owned the Parasound A23 at the same time as the AHB2 and the AHB2 was so much better on my KEF LS50's.