I have the Boulder 866 running my Heritage Specials and its a match made in heaven. The Hertiage Specials need lots of current and quality watts. If the Boulder fits in your budget it is a must audition. The Hertiage went to another level with the Boulder. Feed them well and you will be rewarded.
I'm using Van Alstine DVAM225 monoblocks - amazing amps (read the rave reviews). They are a great match with a Luxman c900u pre and Bricasti M21 source all driving the Dynaudios.
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