I am looking to buy a microphone preamp to improve the sound of my dynamic microphones. Right now I am considering the ART TPS II and the Presonus DP V2. The ART model has been highly recommended by some friends, but no one has heard the DP V2 yet.

The only criticism that I've heard on the ART TPS II is that I will most likely want to upgrade the tube immediately to get a more rich sound.

The only information I've heard about the Presonus DP V2 is that the preamps are the same as on Presonus high-end mixers which are good but "not so great".

If anyone can provide some insight I would greatly appreciate it. The preamp would be used for vocal recording mostly with Shure SM58s or a Heil PR40.