You've run some pretty fancy MC's, but the _______ MM cartridge really impressed me

No question, the Technics EPC 100MK4, a conventional MM with super low tip mass and all the details done right. It has more bandwidth than any MC with flat bandwidth to 80 kHz and a resonance of 100 kHz. It wasn't officially imported into America but in the 80s many of the most famous mixing engineers used it.

The problem with selling it was it would have been a $500 MM by a middle hi fi company Technics when exotic MCs had taken over the market and Technics knew no one would buy it.

Grado, Soundsmith, Nagaoka and London Decca are all MI. Of those, if londondecca.com don't start making cartridges again, I'd go for the Nagaoka MP-500. I haven't had anything higher than a Grado Statement 3, or a Soundsmith Sussurro MkII, but to my ears the MP-500 knocks their socks off. If the Deccas are made again, that is a step better, but a lot more expensive.

Soundsmith makes great sounding MI cartridges, I'm currently using the Carmen 2 nice all around sound and very ready rebuild prices.

Everyone always forgets Goldring. The 1042 is an amazing cartridge for the money. It is the least expensive cartridge I know of with a Gyger S stylus. My other favorite HO cartridges are outside the OP's budget. 

Pindac, I think the idea of a ceramic cartridge in this day and age is more akin to a screwball than to a curve ball, in baseball parlance.  This is not to say it's crazy (one definition of screwball) but that it is more esoteric than a curve ball.

Another Curve Ball, I met with a guy at a all weekend event where the Public Attended to receive demonstrations of HiFi Enthusiasts exhibiting their systems.

I was introduced to a Phillips Ceramic Cart' and was so impressed with what was happening, revisited the room multiple times and had Tracks from my owned Albums played for me on a few occasions.

I learned that the Cart' user had stopped using a very expensive MC Cart' to make way for the Phillips Ceramic Cart'. I also learned that when the Ceramic Cart' has a Paratrace Styli added the Cart' owner had decided to stop using MC Cart's. 

Following the encounter, it took a few months of continuous searching, but I was to be  extremely lucky to find a exact model Phillips Cart and a spare new Stylus.

I have spoke with a Third Party Rebuild Service who are to carry out another build for me. They feel confident that the Cart' that is to have a Boron Armature removed , can have the Armature repurposed with the addition of a new Styli and exchanged with the Stylus supplied with the Phillips Cart'. I will then have a bespoke Cart', as well as a option to return to the OEM design.

 The plan is for this Cart' and other owned MM Cart's to supersede my use of MC Cart's. As an initial set up, there is the intention to run two TT's, one dedicated to the use of MC's that will at some stage no longer be replaced, the other TT will be for the Ceramic and MM Cart's.

There will be an interesting period making the time to revisit the stored selection of owned TA's to see where the Ceramic/MM's can be discovered to produce the best SQ to suit my tastes. I am working on the basis a dual TA may need to be designed for the Plinth, as there might be a need for this to get the better out of the different designs. For too many years now, all efforts made have been about discovering where there is betterment to be found for the MC Cart's used. 

A new TT acquisition has been made today, which is the same model as my preferred TT, as the initial preparation to get this experience underway. 

 Nagaoka are superb by reputation. (I’ve not heard one.) Their TOTL MP500 can be had at the low end of your price range. Personally, I have been consistently underwhelmed by Sumiko, and Clearaudio cartridges are typically made for them by someone else, which raises their cost compared to similar performers. Among the 3 brands the OP named, I’d go Grado.

@fjn04 

Modify your heading to MM/MI cartridge and the replies will follow.

Music Hall Black Mojo. 

I just put this together in another thread.

Before joining Audiogon, I had a MM Shure V15Vxmr micro-ridge (favorite due to sound and preferred to AT440ml only because of Shure’s alternate damped brush), alternate headshell with MM AT440ml microline; and an alternate headshell with MM Shure 97xe elliptical, also damped brush. My wood floors are flexible, so damped brush can help with that as well as warped lps. No longer a problem due to current rack/TT location

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Joined Audiogon, AND covid era left me toooooo much time alone and some otherwise unspent money). Don’t forget, I’m an old dog, 74.

Current Cartridges:

I ’make my own’ by buying bodies with broken cantilevers and if MM eventually finding NOS stylus or if MC having Steve at VAS build me something. Happily, he’s only 35 minutes from me.

I’ve got 6 mounted in various tonearms here, plus a few spares. I have gathered them based on past listening here or hearing friends cartridges; reviews; specs: but not carefully compared them to find differences. Like many LPs, a few I never even listened to yet.

AT 14SA, shibata 1.25g; sep >27db; balance 1.0db. On my garage/shop TT, a Sony Drawer Type, to stack and fit more stuff there, incl dual cassette and 8 track. Note: these TT’s had P mount, or an alternate head for 1/2" which mine came with.

AT TR485U linear 1.25g; sep >31db; bal 1.0db. P mount Shibata (rare) on my Technics SL-J33 programmable compact TT (former garage/shop: spare/loaner these days)

AT440ml micro-linear 1.25g; sep >30db; bal 0.75. Active on Office Mitsubishi Vertical Linear Tracking LT-5V. Wonderful sound, I had a few AT440ml’s over the years.

Shure V15Vxmr micro-ridge 1.25 sep >25 db; bal 1.5db. Originally Beryllium cantilever, broke it. Bought Jico SAS on boron, optional brush, but not damped like Shure’s. Now have VAS ’p’ stylus on boron, with Shure’s optional damped brush, haven’t listened yet. Optional for rear arm of main system and/or office

note: happily, removable/replaceable stylus fits both V15Vxmr body and 97xe body

Shure 97xe elliptical 1.25g; sep >25db; bal 2.0db. Now have advanced stylus on boron, with Shure’s optional damped brush, haven’t listened yet. (bought body with broken cantilever). Bought it to get the damped brush, knowing original body/elliptical sounded great, was my favorite elliptical. Alternate for either main or office TT.

Grado Mono Elliptical: 1.5g. Main system, left arm. Definitely better than using a Stereo cartridge for Mono. I now have the AT33PTG/II Mono body with advanced stylus for modern mono (bottom of list), but yet to hear/compare here

Goldring Eroica LX MC, ’gyger 2’ 1.7g; sep >25db; bal 1.0 db. Listened, very nice, now at my friend’s house.

Sumiko Talisman S Sapphire Tube, van den Hul 2.0g; sep > 30db; bal 0.5db
I’m hoping a spec more bass out of it’s sapphire tube cantilever. Best bass I ever had was V15Vxmr beryllium cantilever. Friend coming over tomorrow, perhaps I will mount it today!

AT33PTG/II MC micro-linear 2.0g; sep >30db; bal 0.5db. Current Favorite. Main TT, main right side 12.5" long arm. 1st MC, when worn: replaced without even considering anything else. And, AT’s trade in program, I got a new one at half-price.

AT33PTG mono body, had VAS make boron advanced ’p’ stylus 2.0g. Heard it at VAS, not yet mounted here. (bought body with broken cantilever). Left mono arm is mission, fixed cartridge, so I guess I will get a headshell and use it on the rear arm, wonderful Acos Lustre GST 801 with instant height change.

Grace Ruby. Also other more rare Grace MM cartridges, with advanced styli; I forget the nomenclature. Also vintage Acutex (MI) and B&O MMC1 and MM20CL (both also MI). These will blow away many mid priced MCs and all HOMCs I have ever heard ( includes some Sumiko, Transfig Esprit, Benz Glider 1 and 2). These are only my opinions based on listening in my two home systems.

I run a Clearaudio Maestro V2 Ebony in an SME IV tonearm on a Michell Engineering GyroDec. Sounds fine to me and tracks every disc I play, effortlessly. Including DD LPs cut at high levels. Sound quality using MFSL One-Step Ultradisc is about as good as it gets IMHO.

Another Grado fanboy here! BTW, do you know the mass of the tonearm?

OP here....Let’s accept any high output cart including Moving Iron. I apologize for not being specific. I’m actually interested in Grado, along with Clearaudio and Sumiko. I just bought a Luxman PD 151, and am thinking of going with a high output (MM, MI...) cartridge in an effort to keep my second system simple. At this point, I’m just looking for something special. I’m usually willing to sacrifice detail for tone and emotion. Price range is $600-$1500. 

Grado are moving iron, not MM.

Grade Statement3

I can't remember the specific models, but I derived years of pleasure out of my two Grados.  They tracked well. They delivered big juicy sound. Imaging, if not laser precise, felt natural and a good deal like what real life sound is really like. My two Shure V15 carts, meantime, came off as a trifle cool and analytical, but I never found a single slice of vinyl that gave them any trouble. Old beaten up 45 singles? Not a problem.