Great sound!!! Excelent Mid Bass. I buyed 2 of this. The voice is great. I used this with a Lanzar HTG447 2,000-Watt 4-Channel amp and Lanzar VIBEX5 Vibe 3 Way Electronic Crossover Network. The result: Great Sound, very clear voice. This not a Surround Woofer. You have to use with Surround Woofer for a good level of bass and a goods tweeters for the high frecuence.I’m very happy with my 2 -> SP84 SSL Pro Series 8-Inch 450 Watts 4 Ohm!