So they can both be plugged into one? I don't need to use a USB (like the new speakers have)? I was thinking they had to be plugged into separate connections.
Thanks for your reply
I just bought a Dell Inspiron i620 desktop that came with Dell speakers. I already had Harman Kardon speakers that came with my old Dell that I had purchased back in 2002. My question is can I use my Harman Kardon speakers with my new desktop? Are they better than the Dell speakers? The HK's have 2 small speakers + one wolfer (?) where I can adjust the Bass, Treble & Surround. The connection on the new speakers is one small single prong plug in and one USB connection (and there are 2 small speakers). The HK's have 2 single prong plug in's and I see nowhere to plug both of these into my new desktop. I have just set this up and only listened to the new speakers with using the music preloaded on the computer, but they don't sound as good as I remember the old HK's sounded.
Thanks for any advice.

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