Bigger amps in an enclosed cabinet?


I currently have a Plinius integrated that is enclosed in a
home theatre-style cabinet, similar to, say, a Salamander triple.
I've never had any problems with it getting too hot, or being too heavy (I'll keep the cabinet door open during use.)

I am intrigued with upgrading to a bigger, heavier amp, such as one of the larger Plinius amps , or one of the Pass units
(x150.5 or x250.5. )

Given that these amps all run in the 80-120lb range (2-3x the Plinius integrated) and they no doubt generate a lot more heat, am I ok with placing an amp like that in the same space?
128x128golfrok
Each manufacturer should clearly explain in their literature if their equipment has any special ventilation needs. Many have their owners manuals available online or will answer questions if you email them.

As such, I'd suggest your get your info straight from the horse's mouth.
Heat is the only issue other than a strong enough cabinet to handle the weight.
I've got a really cool old Philco TV cabinet that lost the TV before I got it. It's my audio cabinet right now with only a 120W integrated and a CD player. Doors open it has no problems with heat. It's got plenty of room and I'd forseen adding separates to it one day. I'd also thought of the heat issue so:

Does anyone use the small box fans (muffin fans) to move air into or out of a cabinet? If so, can you recommend a really quiet one? Some of them are real howlers.