For sale is a RWA Isabellina HPA (SLA version) for $1450 $1150.
This version is compatible with Wadia devices like the i170.
If you are interested in upgrading, you know that Vinnie has a great trade-up policy.
Great sound with the HD800, but I am downsizing and sticking with a smaller set up (Lehmann BCL and HRTII+ Streamer)
The battery charge still holds over 15 hours. Comes with the charger...