He was experimenting with finishes and I think they came out with a pretty cool and unique look to them. This is from my buddy who is responsible for pointing me in the direction of GR so he is the reason why I own those speakers. They are Dayton ref drivers with another DIY'er's plans. Obviously, they don't dig deep being so small, but what they ARE able to do is throw a HUGE, deep sound stage. They are extremely clear, even at very elevated levels, though they are fairly low in sensitivity, I think he said 86dB. They have excellent midrange detail, and that was the focus for him. Super clear and go low enough to easily blend with any decent sub.