Manley Chinook with (very) low output MC ZYX?


I currently have a Manley Chinook SE (UA Philips tubes), and I'm really enjoying it!  I use it with an ART9, but have been curious about the ZYX sound.  I have an opportunity to get a good deal on a ZYX R1000 AIRY 3X/SB (0.24mV).  Which is slightly less than half the output of my ART9.  Can I expect good noise performance?  How about overall performance?
tre9901
@soundermn 

Here is a cheaper solution that sparkos labs with strong specs.  Some say specs don't matter so much with op amps.  I have no idea and will let my ears be the judge. 

http://www.doukaudio.com/dual-discrete-op-amp-hifi-audio-preamp-operational-amplifier-opamp-replace-...
Very interesting!  Thank you for sharing your feedback!  I agree that it's staying with me too.  The only thing I would consider if I were upgrading is the Herron... but it's significantly more money, and I wonder how much better it really can be.  
Exactly soundermn!  I also wonder if the Herron would be great yet just different. Since I'm in love with the Chinook it's staying.  

The Chinook is the single best piece of gear I've ever bought, including speakers, tube amps, etc.  Why?  Because it elevated the overall vinyl game into liquid tube honey sound.  It's that good.