Powerful Yamaha Set. Includes Yamaha front speakers, Yamaha surround speakers, Yamaha center speaker and a very powerful Yahama subwoofer that can shake your room or hall of any size.Has a very heavy bass with a powerful Yamaha tuner amplifier. This digital surround home cinema receiver has Dolby Digital, DTS, Pro-Logic II and DSP surround sound programs.All this together delivers a very great sound and powerful room filling surround sound and heavy bass and very neat