I've been looking through my original and subsequent posts, and realize I have conflated two different Audio Technica moving coil mono cartridges: The ATMONO3/LP, which has 1.2mV output and is the one that I have, and the AT33MONO, which is 0.3mV output. The ATMONO3/LP has an official US distributor, LpGear.com, who prices it at $189. You can also get it for as low as $112.65 on Amazon (which is what I did). The AT33MONO is not officially imported, so you can get it from eBay or Amazon. It's usually in the $270-340 range.
Both have the same weight and both feature an aluminum cantilever and spherical (conical?) stylus.
My stereo cartridge is an AT150MLX, which is quite an overachiever for an MM cartridge. As good as the AT150MLX is, the ATMONO3/LP holds up well when I switch to it, and it really brings the advantages of a mono cartridge--a great sense of immediacy, much lower noise floor (esp. on old mono) and a really coherent sound that smacks you in the middle of the head. It sounded so good on the new Beatles Mono LP releases that it sent me searching for other mono albums I have, some 50 and more years old. It turns out I have 57 and counting.
Both have the same weight and both feature an aluminum cantilever and spherical (conical?) stylus.
My stereo cartridge is an AT150MLX, which is quite an overachiever for an MM cartridge. As good as the AT150MLX is, the ATMONO3/LP holds up well when I switch to it, and it really brings the advantages of a mono cartridge--a great sense of immediacy, much lower noise floor (esp. on old mono) and a really coherent sound that smacks you in the middle of the head. It sounded so good on the new Beatles Mono LP releases that it sent me searching for other mono albums I have, some 50 and more years old. It turns out I have 57 and counting.