The Infinity BEta C250 is a decent center. Buyers be aware of OneCall, they post very attractive prices for their products but be careful with the shipping costs. They will rip you with 4 times more expensive on the shipping cost. I ordered a 4 lbs product from them and they charged $20 for shipping. What a rip off! I will never buy anything from them again. Shame on Amazon to let OneCall violate the Shipping rules.One more thing bad about OneCall, they sell openned box products as new products, Buyers watch out for this matter. Most of their products are used or openned box. YOu only see it when you get the products in hands and realize it's not brand new and they make it very tough to return the product.Thanks