Bradz, it sounded better over the whole range, from the bass to the top end sound much better. it did sound a little faster or dynamic than before. The Innersound will let you hear all the is to hear from any thing you do to your system, and the second I got the unit back the from Mark it sound better than before, the bass was much better than before, also I change the two line stage tubes to E80cc from the 12au7`s that it used before . if you try these tubes call Mark before you change them, but I will tell you this I will Never use a 12au7 in it again, the E80cc was that much better still and made the 66 another pre-amp. with the changes I believe I`m much closer to a stock 99 than anyone would like to admit too.The Magnum is worth the money . Greg
