Darkglass. Actually, that much is enough to say about it. I would have been happier if it was 4 ohm, because now I will have to buy a new head. However, it is excellent in quality, light and very loud. Not only is it loud, but it also has a nice clear voice. I give 5 stars for the price/value ratio because I bought it at a reduced price. But if someone wants a better than the best 2x10 speaker, look no further.