Connecting an Altec Lansing ADA995 subwoofer system to a stereo

I have this exact Altec Lansing speaker system and I'm currently just using it with my Dell computer. But, I know you don't have to install these speakers to any high powered receiver for good sound quality. The subwoofer has two separate 200 watt RMS combined amplifiers built in for it's single knob controlled dual 6.5" bass drivers and 2-way magnetically shielded satellites, which are amplified together by any source that has an analog or digital volume control. The speakers act as a preamp receiver to any volume or frequency tone level controlled audio source. These input sources can also equalize the speakers receiving input signal for bass, treble or mid-range adjustments. You only need to obtain the proper adapter to hook up all the speakers to your desired component or device. Besides a computer, for example a TV with a variable audio out function or a mp3 player will work. The adapter that i am referring to is similar to what is included with certain 5.1 Logitech brand computer and multimedia speakers specifying gaming console and TV connecting. It has all three color coded 1/8" connector inputs on one end and RCA jack outputs on the other. This can be purchased more easily online then offline at stores such as Ebay for a fairly inexpensive price. However this adapter will not decode true 5.1 surround, but instead give a 5 channel stereo effect. I guess if one was looking for an inexpensive alternative solution to purchasing traditional high end home entertainment audio equipment, the ADA 995s are one of few computer speaker models in my book that can do a decent job.