Looks like maybe a late 80s early 90s MX kit ... assuming that’s wrapped and not lacquered. If it’s a lacquer - MLX.
Someone with more Pearl knowledge should chime in and narrow this better.
Awesome kit!Still use my 1991 Pearl MLX which is in ideal sizes 8x10", 8x12", 14x14" and 14x20" in Honey Amber. Added Omni Mounts for the toms. Cut the 7/8" pipes down and purchased the Pearl covers that cover up the 7/8" holes. Sounds Great.....yes the lugs are not doing well....
The toms still have the 7/8" holes - Used Pearl GK-90 Tom Masking plates to cover those holes, shortened the pipes with a pipe cutter and installed Pearl Omni-mounts......Sheer Blue MLX drums. Yours are later in the series since they did not have the tom arm penetrating the shell.
I use those masking plates on my Pearl Custom Z (CZX) kit. I think they improve the sound.