Sound has exceeded expectations after 10-15 hours of break in. Bass and transparency is the best I have heard on my system.  Used 2 18GA strands twisted solid OCC copper with silver plating. Gold plated copper teminals, 3/4 “ MDF, 1” Denim dampening top half and 2” denim dampening for bottom half.  Dual 2 1/2 “ x 4” ports.  Update:  replaced internal wiring with 12ga Duelund tinned copper to each bind post.  Improved smoothness, less edgy / bright, fuller with more meat, sounds more real and live.