Newbie here. I have found that for the $$$, the DODD ELP is a magnificent tube pre. It uses 2 6DJ8/7308/6922 variants. The Dodd can be had for around $500 brand new with 2 in and 2 outs. It's a minimalist design, hand built, and of the highest build quality. If anyone here has experience with one, they should know what I'm talking about. Every once in a while, one can be found on Audiogone in the $400 range in very good to mint condition. Just a heads up and another alternative.
And yes, if you get a quality tube pre in front of that 70, you will be in audio nirvana.
Cheers