Which stack would be the best overall for use with my M-100 and the HE-400 once I purchase it? I've been told that the Schiit M&M has a set gain of +5 where as the O2 and ODAC stack gain can be either +1, +5, or +6.5. Honestly I don't know how gain effects headphones so any help will be appreciated.
Edited by chuckle490 - 1/22/13 at 6:10pm















