Not too sure if you have read this review. Although this review concentrates on the Ref 10 - it would appear this particular reviewer has heard the Ref5SE, the 40th Anniversay & the Ref 10. In a paragraph in this review he talks about just how close the Ref5SE is to the 40th Anniversary model that he understands why a "new" Reference model would be sought after - which was to become the Ref10 model.
http://www.celestialsounds.co.za/the-reference-10-short-review/
It makes one wonder - given that the Ref5SE came out AFTER the 40th Anniversary model whether or not the Ref5SE is just a one box version of the 40th? From the reviews I have read - they read like the 5SE and 40th are very similar but then there is a bit of a leap in SQ to the Ref10 - that is to say the 40th Anniversary and Ref5SE are more alike than the 40th Anniversary and Ref10 are.
http://www.celestialsounds.co.za/the-reference-10-short-review/
It makes one wonder - given that the Ref5SE came out AFTER the 40th Anniversary model whether or not the Ref5SE is just a one box version of the 40th? From the reviews I have read - they read like the 5SE and 40th are very similar but then there is a bit of a leap in SQ to the Ref10 - that is to say the 40th Anniversary and Ref5SE are more alike than the 40th Anniversary and Ref10 are.