So far the T+A gear has outperformed, Electrocompaniet Monos blocks, CJ ART and Gat, Devialet D400 Monos, and Chord gear.
We really haven’t found any combination of electronics which have sounded better.
In terms of power, yes the speakers are efficient, however, if you have a good sized room and like to listen loud the extra power of a big amp allows you to rachet up the volume without compression.
Our demo room is 26 by 20 with 10 foot celings and when played loud the T+A meters are showing peaks.
Your 30.8 will drive the speakers fine but more power will give you greater dynamic freedom and the speakers just get louder and cleaner given more power.
Also the Pass Labs gear is very good, the T+A gear is far better. Both Musifx and David_Ten both compared T+A to Pass and both found the T+A gear to be substantially better.
Personally I would trad in both the Ref 3 and the Pass Labs amp and just go with a T+A HV PA 3000 at $18k or the newer version the PA 3100.00 a $23k integrated.
you will never need to upgrade as the level of quality needed to exceed these products gets to be crazy expensive. The PA 3100 HV was reviewed by Positve Feedback and was compared to a $45k Dagastino and a Vitus integrated and the T+A was considered to be better.
Just amazing stuff.
Hope that helps, please PM us for a futher discussion
Dave and Troy
Audio Doctor NJ