Replaces the Wolfson WM8740's with the WM8741's. This allows them to run in "hardware mode" without digital volume control, and also allows programming into the minimal phase digital filter option. An audio guru friend of mine told me that his home dac uses the WM8741 and he always sets it into this mode because of its sonic excellence.
I never had the chance to directly compare a stock AK120 with the RWAK120s, although I was listening exclusively to the stock AK120 for weeks before getting the mod, and the impact of the mod was immediately apparent to me.
Is it called RWAk120? I thought that model was with the impedance mod? I haven't been able to compare directly as it is the same unit lol. But from memory there is no comparison. I could amp the stock unit with the Triad and amp the AK120 S mod with the lesser T1 amp and the S mod would still beat it out hands down. The sound is extremely refined. Just effortless its not even funny :P. Also hearing frequencies on some of my songs that I've never heard before (super high treble). Hearing the decay in the treble is also really sick. It just sticks out in such a good way :). Definitely desktop quality music IMO on a portable which shouldn't be the case but it is :P.
Edited by lee730 - 12/8/13 at 3:25pm