[R-390] A vs non A

[Drew P.]

Jim wrote:

<snipped>

"I listen to AM signal more often. I prefer the Xtal filters in the 
R-390 for this reason. I find the Mechanical filters in the R-390A are 
a bit harsh, and ringy compared the the xtal filters. That being said, 
The S/N ratio is the big thing, and they both kick A in that department."

I has also been said that the distributed L-C selectivity of the Non-A vs the lumped (mechanical filter) selectivity of the A provides a quieter IF, and so the Non-A kicks the A in that regard.

Drew