I've owned Grado SR80's before a few years ago, loved them. Been using Hifiman HE-560's with my Ultra EC preamp and Insight DAC.
Anyone have any experience with the higher end Grado's and AVA equipment? I would like to think the GS1000's are for me, but it sounds like they stray from the Grado house sound and maybe the RS1's have more boogie to them....