History: I am the original owner and I got this unit not too long ago (say 1 week). I upgraded from HSA-1a to HSA-1b, and I noticed better imaging, soundstage, bass heft, and slight improvements in detail. Note that these observations are with my Abyss TC, not the RAAL SR1a. I bought this unit to future proof for any upcoming RAAL headphones, but only recently I realized how difficult it would be for me to move my big AMP around (as an added item along with others) for my upcoming travels.

Reason For Sale: So I am selling this unit to acquire a CHORD Hugo TT2 (not interested in trades currently) as my all-in-one unit instead. For future RAAL headphones, I will probably get the Jotunheim R until I find myself devoid of multiple travels. It is a hard decision for me, but I need to sacrifice somewhere.
I sold my old HP in need of money, now I am selling this in need of compactness/transportability.

Price: $3631, and this price includes both PP fees and shipping fees. In other words, I will cover all fees.
PM me if you are interested in buying (and let me know if you want to see more images).