Lionelflyer,
I am with you as my TCA number starts with 92!
So, I am running early protosound Alco Pa with powered A, 2 powered Bs and a dummy A with a cab-2, 135 watt powerhouse wired to a TPC 400 set in conventional mode. Works prefect as all units run together very well.
Whatever you throw at a TPC, you can run it with a cab1 or cab2!
Also, I changed the battery and put a BCR in the powered A unit.