Hi Joker, thanks for that, I seem to be getting somewhere now, and yes looks like you are right, RCA's from the Naim streamer into the BHA-1 certainly seem to be holding the BHA-1 back, normally I wouldn't mix Naim with Bryston but it seemed like a good source to feed all my headphone amps which it seems to be other than the BHA-1.
Just now I took my BCD-1 and plugged that into the Balanced inputs of the BHA-1 and queued up the same song on the Naim streamer and one the BCD-1 and flicked between the RCA and Balanced selector, leaving the gain on high for both, WOW, what a difference balanced from the BCD-1 was, massively louder but also far more clarity and detail, it was a different league. Also when using the balanced connector from my HE-6's it went up another level, a fully balanced BHA-1 really is something quite special, which makes me realise that I need to sort balanced cables pronto for my LCD-2's and HD800's to really hear them at their best with the BHA-1.
So progress made, but there still isn't much improvement in volume between 10-2, but I guess that is just the way the volume works on the BHA-1?
Thanks.