I think better if you buy SR-407 and SRM-323. I have this system and it sounds good. But sometimes all stax phones needs a little bass boost at equalizer (I'm using foobar2000). I cannot recommend you 2170 system and 006 amp.

407 (404) much better than 307. The cable in 407 have much less capacity and much better quality of made and copper.

Hi all ! When I tested the polarity of m-audio ie-40 to properly fix the cable I noticed that STAX SRM-007tA and SRM-212 have reverse (wrong. + and - are reversed) polarity with STAX 003, 404, 009 phones. But SRM-323A have proper polarity. I've done this tests by recording on mic negative and...

My SRM-323A have strange voltages on transformer secondary: orange - 270V, red - 290V, blue - 6V. I think voltages on orange and red wires must be equal?