Best bang for the buck,period. Being a long-time DiMarzio fan (different PU types for different instruments),I bought a DP123 set as a direct replacement for a HB fretless (sold by Thomann) and these PUs did the job as expected.The instrument is now at an entirely different level.The hum is non-existent due to the humbucking design of each PU and the adjustable pole-pieces really helped to squeeze the last drop of sound and to find the sweet spot for each string,individually.Thumbs up,highly reccomended!