Review on AricAudio Motherlode MKII preamplifier

Anyone try arics 300b preamp ?

So I hooked up my newly arrived MotherLode II last evening and listened a bit.  Then I let it play overnight and listened a bit this morning before going to work.  My first impressions are overwhelmingly positive.  This is a very special preamp.  It was inserted into my reference system for a modded Supratek 6SN7 preamp that is a helluva piece of kit.  

The ML is clean with near crystalline clarity, nice imaging and good low end.  Relative to the awesome Supratek, it initially does not have quite the low end heft.  However, the ML is more extended on the top end.  Overtime the bass noticeably improved and some initial upper end hardness was gone.  The soundstage has opened up a bit.  The ML has a touch more clarity than the Supratek.

Obviously more break-in time is needed.  I will say though that the ML preamp appears to live up to its high billing.  I am most pleased with it even though it is currently breaking in.  Aric Kimball has been very easy to work with as he has been an Uber responsive communicator.  The preamp was superbly packed and has the look and feel of high quality equipment.

I am going to very much enjoy this journey of breaking it in.

Nice review Teajay. Was good to see you still have the Tektons in your stable. They do let upstream changes manifest themselves, don’t they? A number of reviewers change their "references" so often it makes one wonder. Glad you have not fallen into that camp.

So with about 50 hours of playtime the MLII has erased any of the previously mentioned shortcomings.  The low end and midbass have filled in nicely, the clarity has even ratcheted up a notch, tone colors are in full bloom and there is zero edge to the very extended treble.  

This is the best preamp I have ever owned. It is, for me, the GOAT.  Highly recommended.  I might try some different tubes -already put in Linlai 6SN7s - however it is really hard to fathom getting incremental performance from its current level.

The preamp Aric built for me is the Motherlode XL........