On Friday last week I received the demo BHA-1 from AViTech (Austria) who is responsible also for Germany.
After long hear-sessions, I've ordered this morning, a BHA-1 without integreted power-supply at my German distributer.

The powersupply MPS-2 of my BP-26 will supply my new BHA-1.
It sounds so phenomenal. I've heared so many details the first time. I'ts not describable in words...
My setup 1:
Source: Cambridge Audio CD840 digital out. ==> BDA-1 ==> BP-26 Bal-In ==> TapeOut of BP-26 ==> BHA-1, RCA in ==> AGK-701 or AKG-702 on my ears
My setup 2:
Source: Pro-Ject Xperience with Ortofon M2-Bronze ==> BP-26 MM-Phono-In ==> TapeOut of BP-26 ==> BHA-1, RCA in ==> AGK-701 or AKG-702 on my ears
I'm a little bit sad, that I must send tomorrow the demo device back to AViTech...

I will report when my ordered BHA-1 will arrive. In the meantime I will use the time to modify my headphones so, that I can use the symmetric output of the BHA-1.
I'm so happy

)
Ralf