I have two pair of L570/2, one in walnut, the other in black. They sound great and I use them for my office. One tweeter in the black pair needs replacement, but I have had no luck finding one on ebay. Also a little concerned that a seller I'm not familiar with would have the sense to pack it correctly so the dome doesn't get crushed in shipment. If anyone knows of someone who does excellent repairs of dead tweeters (I suspect a voice coil open), please advise.
Who uses ADS Speakers
I worked at ADS in The late 70s and Find they are one of the best home speakers ever.
I always loved their accuracy.