I too have an Ironwood VC and was very surprised to read people felt the VC had more reverb. Wood densities altering this makes a lot of sense to me, since to my ears the way my collection goes in terms of reverb: Black Limba Atticus>>>>>>> Teak Auteur> Ironwood VC>>> Cocobolo VO In fact, the only reason I haven't sold my VO is because of the incredible lack of reverb. Everything is just SO immediate, from the attack to the decay! EDit: All this said, I would like to make a note for readers who might be new to ZMFs: We're making purely direct comparisons here, and the whole "reverb" thing really isn't something you need to worry all that much about. It's quite subtle on most of the headphones, and imo, it's a very pleasing effect.