Will VPI's Classic 3 sound much better with a SUT?

For only 60db gain, I'd want a cartridge with a bit more than 0.5mV output. And tablejockey, I am sure that was a typo but my point is that 60db gain from an 0.3mV source gives 300mV or 0.3V.

Lewm, SUT's typically amplify the sub-millivolt output  of a LOMC cartridge by 10 times. So my Denon 103R's .3 millivolt becomes 3 millivolts from the secondary of the Bellari SUT. Enough to use with most phono stages. My math is correct! I bought my first SUT in 1978 - a Mitchell Cotter P Type. 

Tablejockey: I don't know of any LOMC cartridges that output .5 mv. Anyway, that is still too low to use with a typical phono stage which needs a minimum of 2 mv and a maximum of 5 mv. Maybe you are thinking of a high-output moving coil cartridge like my Dynavector 20A which has 3 mv output so it doesn't need an SUT.

Lewm, The typical phono stage adds an additional 40db to the SUT's 32db gain. So plenty of voltage to drive a line stage. 

Getting back to the topic at hand...

OP, please don't take offense, but IMHO your VPI will sound better with better full-range 100% passive speakers.

For reference, I've owned BP2000's and Mythos ST-L's.