Which Mono Cartridge at around $1,300.00?


I'm in the process of upgrading my well cared for Thorens TD145. I started by soldering in WireWorld phono cable along with getting a basic tune up. I want to replace my Grado ME+ mono cartridge with a substantially better mono cartridge. Currently, the tone arm is stock. My records are classical (orchestral, chamber, vocal, etc...) dating from the 1940's and 1950's so I've been cogitating on the Ortofon SPU Mono GM MKII or a low output Grado (i.e. the sonata reference 1). My phono stage is the ASR Mini Basis Exclusive. All or any suggestions would be greatly appreciated.
Thanks!
128x128goofyfoot
Miyajima is a cartridge that I had never even considered and don't know much about however I'll look into it. It seems from what others have said on past blogs, that a good MC mono cartridge will be built as a 2 channel mono cartridge versus a stereo cartridge that was shortened into one channel. This factor exponentially increases the cost of a cartridge. As well, I've always understood that a good low output MC cartridge will easily be within the $1400.00 range. The raved about Ortofon Cadenza mono is listed at about this price. And, I like the idea of the Ortofon Cadenza with the exception that it supposedly performs better on narrow grooves than it does on the earlier wide grooves.
Goofyfoot, Your rationale is as pointless as mine, so, go for it. I will say that I trust Syntax, since he is not one to say anything at all, unless it is from his personal experience and is strongly felt.

By the way, I do not know why building a cartridge as 2-channel mono would be more expensive than building it as 2-channel stereo, especially not "exponentially" more expensive. For one thing, a spherical stylus tip is usually preferred for mono, and such a tip is less expensive than any other shape. Be that as it may, the Miyajima Premium is built from the ground up as a mono, for what that's worth.
OK Lewm, fair enough, I will follow the above advice from Syntax as I'm already certain that he's far more knowledgeable in this area than I am. I also trust his Lyra recommendation but will have to work in the diamond mines to afford one. However you ask, why are mono cartridges that are built from the ground up as mono cartridges more expensive; I'm guessing because they typically sound better than other alternatives but I cannot say for certain.
"More expensive" than what? Compared to their stereo equivalents, e.g., a Lyra Delos vs a Lyra Delos Mono? Is the latter more costly? If so, I would guess that it's a matter of marketing and very low production numbers. If the Delos Mono is more costly than a Miyajima Premium, then I would opt for the latter, but that's pig-headed me.
Goofy, lots of questions on the mono subject and that is not as simple as one might first expect.

Original mono cartridges were designed for lateral motion pickup only. Stereo cartridges added vertical motion pickup (although stereo is a 45/45 configuration, that is beside the point here). Many mono fans recommend "true" lateral motion pick up only since that eliminates any vertical noise component, thus quieter playback. That can be important with older records.

It is true that some current mono cartridges are simply stereo models which have been strapped internally for mono playback. For example, some claim the Grado monos are simply strapped stereo cartridges. I have not seen the definitive answer to that question. Similarly, some claim a mono switch on the preamp or phono stage will accomplish the same result as a strapped stereo cartridge. That seems reasonable to me but I have never heard that comparison.

Next is the issue of styli as Lew mentioned. The size of the cutter head (from original mastering) changed over the years so it could depend on the vintage of the LPs you want to play as a guide to which mono cartridge to choose. Mono cutter heads are no longer available so modern mono reissues are cut with stereo cutter heads, thus "modern" elliptical profile styli may be better for playback.

Beyond this is the question of EQ. The RIAA curve was approved around the time of stereo LPs (1957-8) but not all record labels began using that right away. So again, it may depend on which mono records you intend to play. If they are all recent mono reissues, an elliptical stylus of some design and RIAA playback will be fine. But if you have records from the late '40s - early '50s or late '50s -early '60s then you may benefit from more research before choosing. I suggest searching "mono" here and on Vinyl Asylum.