Hello Bobbi,
the TAD "sound" with the 8550? yes BUT !!!
the CR1 with the Pass XA100.8 dont have enough "electricity", with a FM ampli 2x 300watt was too not the top. Sure you have a sound but to have what the TAD really can you need much more from the 8550.
Test after test is so: Tad need A LOT of ampereto have an amazing sound. the only great sound listen with the TAD was with the Soulution and with the Tad amplifier. No way.
greets style