Ok . So what about the RS-1 vs. the GS-1000 ? KrMathis And Recstar ...... you have my attention.

So does everyone else , but besides the point . ) Super-good thread.
Can you compare/contrast vs. other hp as well ? Types of music ? Serious .... even my gf is beginning to understand that "1950's Radio Operator" headphones could provide more from the Zana. I know I am asking alot from my little headphones now. btw ... the bass has exploded. in relative terms. )
As soon as I discovered the Grado, I went to the dealer, which is the same she purchased the Nad from in '90, they only had the SA-60 (?). The entry level, running on the Grado amp. Very transparent.
I've had a minute to tune my ears to some different speakers lately, different thread. But the headphones are telling me I could use some serious amplification on this signal. Maybe even dirty it up. ))