Quoted from Markharris2000:For a lowest-cost sound upgrade, consider getting a CXX8 woofer ($25/each) that directly replaces the cabinet speaker, and a set of Kicker 4-inch DSC040's or 44's ($50/pair) for the backbox, again they are drop-in replacements. You'll get MUCH better sound across the board just by putting higher end speakers into the existing mounting holes and wiring.
Hi Mark -
For the CXX8 woofer swap out on the JP Premium, do you need any more amp power to drive it or is what in the machine currently good enough? I have only used the innovators subwoofer adapter for Stern Spike systems and tied that into an external powered sub and then also have the connector that you can connect multiples to it. This pin would be at a different location so looking at my options.
Thanks for the help!!