I do not think about these things...i just put them to work and i test them...this box is just to test a prototype and i will need, certainly a fan to help the cooling.... i do not use to spend too much time imagining if something will work or not... i use my imagination to other things....i am a builder...someone that makes experiences.... someone that burn fingers working and i accept try and error.... deeply skilled... 50 years building..more than 6300 power amplifiers build...i use to i go doing and them i will have my own answers....the box is not offered and suggested..it is just show..you see that i am not suggesting people to do this way as i am not providing any dimensions.
Read the thread with attention prior to make comments please... the circuit cannot be shown, it was sold..it is a secret..i am just informing the ones knows me and trust in my amplifiers as thousands have build them all over the world, that i am starting a new design...if you do not know me, then take a seat and read a little and you may apreciate...or not.... in the second option you have other threads and other foruns to go....in the first option you will have a nice guy ready to teach the ones wants to learn something in the precious practice way.
Maybe because the language, you seem a challenging guy, maybe envious or someone that thinks knows a lot.... it is a good idea to know better the ones you are challenging before post provocations or ironic comments supposing others are stupid....maybe the stupid is the one supposes that.
You are having a chance to behave more educated to create good relations...if you continue challenging will be ignored.
I suggest you to take some care with your words and to avoid words or questions that may produce the idea of irony or sarcasm...as we are in an international forum where there are several languages and traditions..different cultures... questions alike you made, to my culture, usually starts a fight...be more kind and we gonna be happy together
You use your own ideas about cooling, fans and dimensions...but use them..do things and be happy.
regards,
Carlos