I'm going to start this by stating that these are just as good as the D series. I know every drummer out there wants the D series just because its the D series. There is honestly no change in sound I had a show using those and knew I had to get them, I could only afford the F series and I am so glad I saved that money. They sound remarkable the build is fantastic, very sturdy metal and I have not had one issue with them. They can make a horrible drum set sound nice and a good drum set sound amazing. Buy these PLEASE you wont regret it one bit.