If you go to the LPgear listing for the AT150MLX here, there is a link to a pdf excerpt of a Sensible Sound review, I have the complete issue of that magazine, where the reviewer compares the AT440MLa, AT150MLX, KAB-Concorde ProS 40, and another hybrid or two from KAB and Stanton on a KAB-modified SL1200 with fluid damper and other mods. This excerpt only has what he said about the AT150MLX, but it was clearly his favorite, and he particularly mentioned that it was more linear than the AT440MLa. He felt that the 440's plastic body may insert a bit of upper midrange glare vs. the 150.
I must mention that he was reviewing this rig for the purpose of archiving LPs to CD, so overall he might have liked the KAB-Concorde ProS-40 or 30 equally well overall, but gave the nod to the AT150MLX because its MicroLine stylus does a better job of sounding fresher when playing used and worn vinyl.
I must mention that he was reviewing this rig for the purpose of archiving LPs to CD, so overall he might have liked the KAB-Concorde ProS-40 or 30 equally well overall, but gave the nod to the AT150MLX because its MicroLine stylus does a better job of sounding fresher when playing used and worn vinyl.