I've got the J-370 with the built in speakers. I ALSO have a fairly high-end "whole home" system with speakers in both the garage as well as on my back deck. The ones on my deck of of higher quality then the ones in the tub but the acoustic properties of floating in a tub don't really benefit from anything high end. Using the speakers on the tub is (1) easier, (2) Sounds better (because of a closer proximity of the speakers 3 feet vs. 15 feet), (3) Is easier to control (can use a waterproof remote while floating), (4) Can keep the volume lower than if I used the ones on the house, etc....BTW - You can get the speakers for $500 more. Just tell the dealer that it's down to the Jacuzzi or XYZ brand and if they "threw the Speakers in for their cost ($500), you'd write the check that day.." it worked for me...