Current sensing phono stages w/Rega?

I am curious to know what cartridges have an internal impedance of 2 ohms or less.  My own MC2000 fits the criterion, and I know there are others such as the Haniwa that present an even lower internal R, but I would think the list is very short after that.  Also, maybe we should make a distinction between "works" and "works best" into a current mode phono stage. Hdm is quite right to point out that "works best" also depends upon the actual input Z of the phono stage.  With the 12-ohm AT ART7, which puts out only 0.12mV, you have a cartridge that is on the fence for either current- or voltage- mode.  I find that it works great with my BMC (2-4 ohms input Z), usually in the +7db gain mode.  It's a little more robust sounding into that device than it is into my high gain SS voltage-mode phono stage, but either works fine.  Don't you think it's a little severe to say that 2 ohms is the upper limit for internal R???  If that were the case, the market for current-mode phono stages would be very tiny. (Perhaps it is only a little better than "tiny" in reality.)  On the other hand, why would you want to use current mode with a 40-ohm cartridge that has 0.4mV output?  One reason would be if you don't own a high gain voltage-mode phono stage and mating such a cartridge with a SUT would be problematic (although could work with a 1:10 SUT, but preferably no higher ratio). Anyway, lots of folks seem to be using current mode with cartridges, even up to 20 ohms internal R.

The Mutech Hayabusa, which as been described as a continuation of the NLA Transfiguration Proteus, has a Coil impedance of 1.5Ω. 

I believe all of the My Sonic Labs (MSL) are under 2Ω with their Ultra Eminent EX having the lowest Internal impedance @ 0.6Ω.

ZYX Optimum: 1 Ohm

Of course the SL versions of Lyra’s range including their latest lower inductance “Lambda” series and the half-wound Koetsu Urushi Vermilion should also be considered excellent contenders.

There is an audiogon thread out there where fans of current gain have posted what’s worked well for them.

From my experience with various Sutherland Loco preamps (with an input Z of a fraction of an ohm) I’ve gotten great results with pickups up to 14Ω such as the “R” version - Denon 103R.

Those are all very expensive cartridges, and the fact remains that most current driven phono stages work well with cartridges that have internal R in the range 2 to even 20 ohms, though I would be leery of going that high myself.

All of the Ortofon Quintet & Cadenza Series are between 5~7 ohms starting at $346 & their vintage SPUs (LOMC versions) are between 2~6 ohms starting at $599 👍

@boothroyd 1+ The MSL Ultra Eminent EX has the lowest of them all at something like 0.8 ohms.

@lewm , judging by my own experience, a cartridge over 10 ohms would have so little gain in current mode that the signal to noise ratio would be pretty bad. The MC Diamond is pushing the limit at 6 ohms. The only phono stage you might get away with higher impedance would bet the Seta L20 which has a crazy high signal to noise ration and cost $60K. I can trade the Seta L in on it and purchased direct the balance would be $40K. It will fit in the cabinet and I am perilously close to being divorced.