Hello forum, someone know a T class amp with I2S connection for volumio ?
Yes - it is a D class I think. I’m testing polyvection d class amp with ti1500 dac.
According to Wikipedia:
I don’t see anything that points out if those are still being made sice Tripath went bankrupt.
I don’t think there would be a amp that takes i2s as input, that is a digital connection so you would need an amp with built-in DAC
Well - apart from t/d class terminology - polyvection’s amp actually takes i2s and power and makes speaker output out of it:) you just need a power supply for the amp part. Dac power can be fed from rpi directly. Of course - better ps is better 
