Best reasonable Phono preamp for Marantz TT15SI

I have a different point of view, having owned a Black Cube and not careing for the dynamic envelope in stock form. I would suggest the Gram Slee Era V, which will mate quite well with your MM cartridge. For much less money, the Cambridge 640P, suggested by Sanlanman is a great place holder and may end up being all that you ever need.

Not sure where I'll end up, but I want to get the best sound I can from this setup for now to see if I want to stay in analog, and if so I'll likely go further as I always seem to....

Music Direct seems to like to pair up the Simaudio with the Marantz TT.

I have a Cambridge 640P, and I know it *can't* be the best you can buy, but all the tradeoffs must be very astutely balanced: It's so musically resolving with no glaring errors or noticeable compromises, and it tied a $450 Slee Gram Amp 2 SE in one review I read. Given that, I suspect I wouldn't hear an improvement *across the board in all areas* unless I upgraded to a Slee Era Gold at six times the price.

I had to get a better cartridge, line stage and speakers to begin to hear what all the 640P offers in resolution and--just as important--musical balance.