[Tone Depth]

I'm designing a new equipment cabinet for a second system, and want to consider clearance requirements & recommendations around components. I recall Frank commenting on that, but haven't found his specific comments on AC. I'm thinking passive versus active cooling, to not introduce additional background noise in my listening space. What are your recommendations or links?

[FullRangeMan]

I'm designing a new equipment cabinet for a second system, and want to consider clearance requirements & recommendations around components. I recall Frank commenting on that, but haven't found his specific comments on AC. I'm thinking passive versus active cooling, to not introduce additional background noise in my listening space. What are your recommendations or links?

Control is Fan or air conditioning.
There is no standard for cooling.

Some recommendations are:
= Live in a cold area.
= Made cabinet as big as possible, what can be ugly.
= Use Class D amps
= Use Hi Efficiency speakers.