TECHNICS SH-AC500D Digital Signal Processor Dolby DTS Pro Logic Surround SoundTested and working sold as seen in picturesFeatures:• Inputs/outputs:  audio line-in, audio output, center channel audio input, center channel audio output, digital audio input (coaxial), digital audio input (optical), front channel audio input, front channel output, subwoofer input, subwoofer output.• Decoders:   DTS decoder, Dolby Digital, Dolby Pro Logic• Dimensions: 17" x 12" x 2.75" (W x D x H)  6 lbs, 2 oz.We are very sorry we can’t ship to Puerto Rico or Hawaii or Alaska. Because of the cost of postage.Unless you pay for the extra shipping cost and we do not ship to PO boxes Thank you