My cabinets are all completely closed. I worry more about dust and
contamination than heat (I also live on a gravel road so there is
LOTS of dust). I elevated my power supplies in the cabinets on 1"
aluminum frames so that there is air flow around all 6 sides of the
supply. I also don't load them anywhere near rated capacity. Heat
rise is negligible although I have never specifically measured it.
Dave
--- In motm@yahoogroups.com, Larry David <larrydavid777@...> wrote:
>
> Hi all - I built a two row case (20U in each row) for my MOTM-
based
> modular. In it now are a 900 PS, a 440 and a 110; finishing up
an
> 800 EG kit and will be adding some DIY modules next. Right now
there
> is a back panel that slides on and off but it is rather kludgey
and
> rattles at certain bass frequencies. I'm thinking of just
screwing
> it in place, making the case more or less "air tight", aside from
> whatever air passes through the front panel jacks or tiny "slop"
> spaces between modules. Will I get too much heat build-up in the
> case with no air circulation? I'd like to keep the dust out as
much
> as possible (and not drill ventilation holes in the back panel).
For
> some reason my studio gets rather dusty, though I take pains to
> prevent it.
>
> Thanks,
> ld
>