Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Wonderfull Power

Bought these as a 8 inch woofer replacement for my DJ Speakers. Let me tell you... They pump bass!Their really punchy for their size.One thing i was a little conserned about was the speakers surround. Its some type of glazed poyfoam surround. Its durable but i'd becarefull with touching it. Its delecate