Without knowing the effective mass of the tonearm, my guess is the DL-301 and AT150MLX would be a better match. The DL-103 needs a heavy arm -- ideally 14-15 grams. I doubt your Denon arm is that heavy.
Denon cartridge vs Audio Technica cartridge
Equipment: Denon DP-59L TT with straight arm, Creek OBH-15 phono stage. When considering compliance, output, weight, etc. which cartridge - the Denon DL-103R, the Denon DL-301MKII,or the Audio Technica AT-150MLX will mate best with the DP-59L? Thanks for all suggestions and opinions.