Raven Audio Nighthawk

i owned a nighthawk and blackhawk.  listened long and seriously to the osprey when a local dealer carried them.  
the osprey sounded better for sure, sweeter and more holographic. 
i loved the sound.  
since the amps had the same basic layout, specs and tube specifications, the differences in sound came from upgraded internal parts, caps, rectifier, etc. similar to upgrade packages some amplifier makers offer.  the tube brands (NOS) were also upgraded and included some expensive amperex and mullards at that time.  
consider this when you decide if it is worth the additional cost to you.  

@ avanti1960
Do you mind sharing why you sold your nighthawk and blackhawk?

I've had the Raven Nighthawk for almost a year and love it. Playing with preamp tubes made a difference.  Goes well with my focal speakers.

Interesting. I had the Pathos Classic Mk3 for a few years and really enjoyed it. Went to a Lyngdorf 2700 and couldn't get rid of it fast enough. Then almost bought a Raven Blackhawk before finding a Line Magnetic 518 that's now making me happy.

I simply love my Raven Reflection prototype.  Dave is a great guy and customer service is above and beyond anything I've experienced before.