I am a long time fan of Mesa/Boogie/Engineering's cabs, have owned both their PowerHouse 6x10 and 2x15 as well and currently own their 2x12. Keeping it short, I have been throwing around the idea of getting a 4x10, found a couple for a decent price. Being able to purchase just one, it leaves me the option of which. One is a silver grill era PowerHouse model, the other is a black "diesel" era. Both are the road ready (built in road case) models with casters. Guess I'm just looking for opinions of one or the other. There is only a few bucks difference in price between them. Fire away.