And before you come, pls make sure your speaker/amp connections:
for example channel 1 to left mid, channel 2 to right mid, channel 3 to left tweeter and channel 4 to right tweeter.
This is necessary if you have a phase problem and will make phase change for any speaker easier, instead of wasting time doing trial and error work.
I will do phase check everytime before fine tuning.

where do u guys TT nowadays?
still at DDP or new place...?
come back Malaysia so long already havent TT b4