So the other day I swapped out my SPB-1 for an SPB-4 (Steve Harris). I have an American Pro P-Bass with maple board and Dunlop stainless steel flats. I run it into a Darkglass Hyper Luminal, then into a Quilter BB 800 and Quilter 1x12 cabinet. I absolutely love the SPB-1, but was intrigued by the relatively flat EQ curve of the SPB-4 as listed on Seymour Duncan’s home page. In testing the SPB-4 I found the following:
- The SPB-4 is definitely a hotter pickup (you’ll probably want to lower your pickup height a bit)
- Even though the EQ curve is relatively flat it favors the lows and low mids
- It’s definitely a darker/more dense sounding pickup that SPB-1 (to me the SPB-1 is more airy with more treble content)
- I liked the SPB-4 more when I was playing up the fretboard, but didn’t like it as much towards the nut
- In comparing the two I feel like I can EQ the SPB-1 to get closer to mimicking the SPB-4 than vice/versa
In conclusion, they are both excellent pickups that are extremely reasonable from a price perspective (SPB-1 is approximately $75 and the SPB-4 $85).
I definitely favor the SPB-1 as I believe it to be more versatile and provides the P-Bass tone I hear in my head. However, if you prefer less highs in a vintage style pickup, then you can’t go wrong with the SPB-4.