OK, I currently have an Avalon 737 as my only mic pre and a Lexicon MPX500 and TC M One as my reverbs. I'm not unhappy with the sound of either, but would like other options. I do plan on purchasing another compressor as well but that's a different topic. I use a 24 track HD, home studio, rock music. So my current thinking is to purchase either another good mic pre (Manley Mono, Great River neve, UA) or a Lexicon PCM 91. Not in the budget to buy both. Which ONE?