Yes, the bridge is ceramic. You can find the original PRS pickup charts on the web, usually in PRS forums. Bridge is around 15k. Neck is Alnico around 7k.
Click here. It's like the second post down and expand the image out. Guy has an attachment in there. Lists all the PRS pups as of 2015. Not sure why they say "custom" now, no clue.
Thank you.
When I look on the PRS site, it lists it as a custom magnet and when I email PRS, they says not ceramic, but custom.
When I go to various sites selling the pi kuo, they list a large Alnico V magnet.
Confusing.
I was also told the Tremonti neck Pickup is the same as the old Dragon neck. Like both. I have the #7 with a Suhr Aldrich but the polarity is wrong so sounds thin in the middle. I want to switch that to a Suhr Aldrich neck Pickup.
SC250 bridge pickup is balanced as is the Tremonti, but also a bit dark. PRS told me the Tremonti Bridge is their darkest bridge pickup, but to me the old Dragon was slightly darker. Too dark at times for rhythm, was the Dragon bridge. I installed the Tremonti treble into my 1994 alder PRS CE22. It's still dark, but with better clarity. I find them perfect.
People get too caught up in Alnico vs ceramic. There is way more to a pickup than the magnet. That's why the Tremonti sounds nothing like what you might expect. It's fat, thick, full, balanced, maybe even slightly dark. PRS says it's their current darkest bridge pickup. To me it's just perfectly balanced.
I was told the Dragon I neck Pickup is essentially the same as the Tremonti neck Pickup. But, it was mentioned in this thread that the #7 neck pickup is the same as the Tremonti neck pickup.
I love the SC250 set in my SC250 and love the Aldrich bridge pickup in my Singlecut. It's got a #7 neck Pickup but it's out of phase with the Aldrich bridge. My tech was able to get the Tremonti bridge pickup and Dragon neck pickups in my CE22 in phase by flipping wires.
I know I could do the same with my Suhr Aldrich bridge pickup and PRS #7 neck Pickup but the the bridge Aldrich is 4 conductor and the #7 neck Pickup is braided vintage wire. I believe I could flip the Aldrich's wires. Otherwise, I'd have to flip a magnet which requires removing the cover. I could also just get an Aldrich neck Pickup.