I have used in the past the Graff GM100 OTL with Klimo Merlin with my Alto's.I now have Chapter Audio Prefac+ and Couplet(430x2 into 8ohm).The sound just blows me away.We are talking goosebumpsville.The Be tweeter can be very detailed yet sweet and magical.The 11" Focal woofer needs SS slam power.IMHO.
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