Preamps are supposed to limit noise and warm up the sound

More than half its gain is white noise

Cuts the noise and boosts my mic signal to a clear and powerful level with out feed-back...

The power supply included in very poor quality and audibly vibrates on its own, and this noise is introduced into the audio path as well.

Hand-selected 12AX7 vacuum tube with UTC technology for exceptional warmth and lowest noise?

Hand selected tubes" and "super low noise" indeed

Noise hasn't been an issue, for me

It did brighten up the sound though, it just added noise..

Preamps are supposed to limit noise and warm up the sound

This says it is hand selected for "exceptional warmth and lowest noise