I just purchased a Wright Sound Preamp WLA12A without tubes.
http://www.wright-sound.com/specs/1
The question is which tubes should I buy and from whom because there are so many to choose from. The tube compliment is 2 x 6SN7, 1 x 6EM7, and 1 x 6X5. I am somewhat familiar with the 6sn7's but not the latter two. What tubes would k-forum readers recommend? Any advice much appreciated!