how to connect my logitech z506 speaker to new dishtv hd box to activate 5.1

[deepak anish]

Hi Guys,

I have logitech z506 speaker consisting of following input
1.)3.5mm
2)RCA CONNECTOR

My dish hd box has 2 output
1.)3.5mm
2.)SPDIF

I want to connect my speaker to stb to get 5.1 sound .may i know what all converting cables and converters to get 5.1 sound.Ur help is highly appreciated

 

[Rom1moR]

To get DD 5.1 u needs to have an Dolby certified HT..