Hello, i must apologize for nobody helping you with this. From what i can tell, your Logitechs connect to an audio source through a 3.5MM headphone plug. I was looking at the info on this turntable and i saw that it comes with a dual female rca to female 3.5MM adapter. All you do is plug the cable from your speakers into that of the matching jack on the adapter. If you DO NOT have this adapter then you may want to order this: Cables To Go 03182 - 3.5mm Stereo Female to RCA Male Y-Cable Hope this helps, and enjoy your turntable.