AntiCables v. Morrow?

Telescope_trade, everyone in this hobby has a different price/performance point along the sliding scale, so I wouldn't necessarily take anything I post as the decision maker for you.

As I mentioned, I do hear a difference, but it's not dramatic (on my price/performance sliding scale), which is why I'm curious about the SP4.

...I will add that the SP6 reveal more upstream detail, so your front end gear needs to be well matched and finely tuned, otherwise the warts will be obvious.

Tvad is right regarding price to performance scale and everyone has their own scale. When you trade up on the Morrow Audio cables you could be spending more on the trade up then you did with the original cable you have. Going from SP5 to SP6 would be more than buying another SP5. This is with the best discounts of the year given. At the time the price between these two cables were apprx $260 or so and I went for the SP5 not thinking clearly about the trade up price. Now it is way over and above the price to performance scale for me. You just need to know going in what the trade up price is going to be if you want to do this program. In my system the ic's have been the cable that provided the better improvements for me.

Same here was thinking of upgrading my bi-wire sp-3's, but if it is the sweet spot, Im not touching it they are the best I've heard in my system.

Jdub39, they may or may not be the sweet spot in your system. They were not in mine so you will have to look at your price to performance scale. It was not a huge increase in performance but it was for the better. When I saw the price to trade up from SP5 to SP6 I felt it would be well over my scale based on the other experiences on these speaker cables. Going from SP3 to SP4, I don't remember it being a bad trade off. If you can't hear the differences then just send them back. I use an SP4 and SP5 in my system and bought the SP5 without the trade up program.