Yeah I’m in the US. Bluebird used to have the I50 and I88 on their website. Don’t know why it changed.
I use Magico S1 with the I50. I think Jadis brings body and density which helps round out the Magico sound. The I88 is very similar to the I50. My dealer told me for my listening volume (average DB 70s, peaks 80s) the I50 is enough. He was right.
At my listening volume, the knob is at 9 o’clock and there is no noise. I think the tube hiss starts past 12 o’clock.
The first year, I ran it 10-12 hours a day and went through the KT150s every 6 months or so. I got a second solid state amp for background music so I can save on the tubes.