Tarheel, My speakers are 36" from the front wall and I liked them also at 30" from the front and I sit 8' from my M3's and they sound superb so I think you would have no issues, and in my experience, the M3's will trounce the Martin Logans in dynamics, bass detail, and impact and coherence, and sound very close to the transparency of an Electrostatics, which I owned for 10 years.