Awesome start. I can attest to the 2450 being a great (and heavy) amp to push the T36s with. I'll run all 4 of mine off one 2450 without any problems. Glad to see you got the DCX2496. Make sure you get the limiter set right. When it's working properly you should be able to pump a 60hz sine wave into the DCX as loud as you want and only get 60 Volts off the back of the amplifier.
Just wait until you get a chance to hook up both T36s and V-plate them into a corner.
Also - FYI, since the last time I checked this info wasn't on the forum - According to Bill, set the HPF no lower than 30 hz for one, for 2 or more clustered together you can go as low as 25hz.
And a big +1 on ditching the Yamahas and stepping up to DR250s. I was using Peavey SP5s as my tops (very close to the Yamahas) before I built my DRs, and the difference is night and day. I crossover around 93 hz now, and everything sounds great.
Low End Junkie for over 20 years.
4 DR250s
4 Tuba36s @ 30" wide
2 ATs
...and a very serious addiction to the smell of BB sawdust and curing PL.