UPDATED: I've replaced the (dead) Advent tweeters with original Seas dome tweeters. These speakers give the 770s a good run for their money, and are better than 737s. I'm impressed and enjoying them very much. I'm listening to Ray Brown and Duke Ellington right now with the Sansui AU-770...just piano and upright bass, and they sound like piano and upright bass. I hope to refinish the cabinets tomorrow. They won't look new, but they should be respectable.
Update 2: They are fabulous.