My pair is one of Jim Strickland's earlier models called the "Monitors" which are directly coupled to modified servocharge amplifiers.  Arguably these were the best sounding model that he made.  Shortly into the game the speaker and models that succeeded it lost the servo charge amp and went to transformers so that any good amplifier would power them.  This facilitated the marketing of the product but didn't sound near as good. Also about this time, the chamfered design was replaced with flat panels which further dropped the performance, sound quality and price.

I have both the servocharged amps and the transformers which I use from time to time when voicing our products.  I usually use the servocharged amps when evaluating our preamps and phono stages.  Of course they also proved invaluable for voicing our loudspeaker designs.  If you can get it to sound any thing like the Acoustat you've really got something special.  The RL-2's are case in point.

I have grown to trust these speakers completely.  They are unforgiving.  In the hands of less serious audiophiles they would sound hidious, but set up with a good source I believe them to be one of, if not possibly the best speakers in the world.  Many speakers excell in one area, these litereally do it all.

If you click the arrow below this text, you will see the original literature for these rare speakers - and I recommend reading it.  The technical merits alone may blow you away.  Also I have provided a link to tons of additional information about these speakers and everything else Jim Strickland made with some very interesting history on Acoustat.

-Steve Deckert