Martin Logan Expression

[JimRoche]

Martin Logan Expression 40+ hours--

At 40+ hours break in continues. The occasional incidents of scratchy highs are gone, bass is perceptually quicker, and there is more information about the size of the recording venue apparent.  Inner voices remain quite clear.  The speakers seem louder than their predecessors (Summit X), for a given volume setting.

Will report further at 60+ hours.

   Martin Logan Expression 60+ hours--

At 60 + hours there are no anomalies in any aspect of the Expression's performance.  Bass is quick.  There is no apparent discontinuity between the woofers and the stators.  There is an excellent sense of the performance venue.  Instruments or singers locate clearly but without any sense of isolation.  Highs are clear.  The mids are superior in clarity and definition to the Summit X.

Will report further at 100+ hours unless there are significant developments prior to that time.

   Martin Logan Expression 100+ hours--

 Beyond 100 hours it is probable that the break in process is largely complete.  I have re-eqed the woofers, a process that took about 15 minutes, to account for expectable low frequency enhancement as woofer suspensions loosen somewhat. Highs are clear without in any way being overbearing.  Mids are detailed, and location of instruments or voices is clear and stable.  Everything is quick and realistic.

Summit X, which preceded the Expression, is an excellent speaker.  Expression takes the Summit X qualities to a higher level in all respects.  This is the best Martin Logan speaker yet in this form factor.

Excellent summary - thank you. I also have the Martin Logan Expression ESL 13A speakers, but with Devialet Expert 220 pro (vs. your 400). I love the bass and treble, but am struggling a bit with definition in the mid-range. Did you use SAM? If so, for which speakers (the Expressions aren't directly supported yet)? Any other thoughts about settings or positioning that you think might be helpful? Thanks!