www.zenproaudio.com/

Amazing products! Even more amazing personalized service. Warren was shipping my gear out during the middle of a crazy hurricane season and made sure to update me

These M179s sound great on toms! Thanks to Warren for such great service!

Good fit, good sound

This is an excellent upgrade! I have two of these preamps and decided to have one modified before the other so I could compare them. Well, I soon after had the other one modified, too, because the upgrade gives this preamp a much more professional sound that becomes very apparent when paired with the matching COMP-54 compressors (also modified by ZenPro). It's also worth it just to have the guys at ZenPro check out your unit to make sure everything else is solid (I also needed to have some power caps replaced and this got rid of some strange behaviors I had noticed).

As stated: a new device yet actually ready for real working situations: an improvement over a previous identical version not purchased from Zen Pro. Prompt shipping: immaculate. Zen Pro is a cut above.