SUT experience

Adrian, do I understand correctly that your using an Ortofon SPU cartridge into a 10 ohm SUT into the Project phono MM inputs with phono gain set at 60 db, then into the Mac linestage? The SPU makes 0.2mV. Assuming your SUT steps up signal voltage by 1:10, that means 2mV into the Project. 60 db gain equates to a voltage gain of 1000. So the Project drives the Mac linestage with a nominal signal voltage of 2V, which is already enough to drive any typical amplifier to full output. But most active linestages add additional gain, like 10-20db. Is your volume control nearly fully to the left? In any case, try the 50 db gain setting on the Project.

I’ve been using the jensen isomax mc-2rr sut with my denon dl 103 connected to my tavish classic tube phono stage into its mm input. Turntable Is the thorens td 1500, sounds fantastic.

@lewm   The synergy cartridge is .5mv, whereas the century is .2, and the #1 carts are .18    When I first tried it, I had the SUT on 3, and the Pro-next on 65 and i literally thought I blew my speakers it was so distorted.  At 10 ohms and 60 db my volume knob is at 25% to get 90db at my chair.  It used to need to be at 35-40.  Do you still suggest I go down to 50db gain ??  

I don’t know why it keeps auto correcting the Pro-Ject to Pro-next.  I swear I’m literate. 😵‍💫