I literally know almost next to nothing about what goes on inside an electric bass. I just play them. That being said, I recently came into possession of a sweet looking 5 string bass (albeit a Chinese made one). It actually plays nicely and is super sexy, however they used obviously cheap electronics on it and I'm looking to replace all of that over time. The 1st thing I want to replace are the pickups. It is an active bass, and it is using an EMG 45 clone with 1 visible screw on each end. I would love to just get a pair of pickups that I could literally just drop in its place but not sure of anything I'm doing. The current pickups are 4.5in x 1.5in. I like the modern, sort of 'scooped' sound, similar to most Bartolinis I've heard. Are there any lesser known brands that could give me that sound? Also, the Barts I've found that same size have 1 screw on one end but then 2 screws on the other end. Please help with any and all info. Buying used would also actually be preferred as I'm not looking to spend a ton of money. I've attached a picture, hopefully it works.