Found myself with a couple of hours to spare so hooked up the RS-1's with Flats to the 8vs and early impressions are quite good.
Doesn't have the resolution or detail I am used too. AC/DC didn't come across with the same gusto, music just doesn't seem as engaging, seems a bit more laid back.
I am liking the tone though, highs are not too bright.
I then had the idea I might get away with using Bowl pads and I am pleased I tried it. Currently listening to Superstition by Stevie Wonder, detail, resolution and musicality are all back !!
I have to say this is the best I have heard RS-1's with bowls in my rig. Will keep listening and clocking up some more hours.
I found in my rig with the other amps that bowls are just to bright, too thin sounding. If it wasn't for flats I would not be using Grado's with the other amps.