RehabMan wrote:There are

[quote=RehabMan]

There are other reasons to go with low wattage parts — not necessarily economic.  In particular, it is easier to keep lower wattage parts cool, which can help keep the system quiet.  Whether your particular situation requires that depends on where your equipment is located, your sensitivity to noise, and your desire to have a quiet system…

Something to think about…

[/quote]

+1

I really like the S/T parts for exactly this reason.  There’s not a huge difference in many cases but it’s refreshing to have a guarantee.