I just recieved a Neptune model made by these folks:
electrosonic amps
 The sounds is stellar and thick and classy,and very low noise....
 
Its a bit tough to navigate the site, I eventually did the google domain specific thing, here's the results,...it lists all of their pages:
googled index

Wow!  George Jetson's amp!
 
Bill, tgo

Are they expensive?

In looking at these amps again, I see a major design flaw.  With that radical slanted top, where do you put your beer?  LOL
 
Bill, tgo

My neptune has the tube rectifier upgrade and a red oak cab,...they have alot of options.
 
   I think the standard model starts at 865 and mine came in at around 1100...don't know about those jetson combo's (cupholders should be an option!).

Wow, those look nice. Elwoodblue, what config of tubes and controls did you get? What speakers are you using? What kind of guitar(s) are you using? And, most importantly, how does it sound? Any pix?
 
Very intriguing.
 
Peace,
Tom

I'm using  the cab that came with it so far....   The amp  is as close to whisper quiet as you can get,...then loud and crunchy like steve miller or joe walsh.   It's brighter than my 65 ampeg jet,  ...same sorta mojo,with a very smooth tight high end with a bit of swing to the lower frequency crunch.I'll have to try it with an open back cab.   from the auction: "Boutique "Custom" Electrosonic Hand Built Point-to-Point CLASS "A" Neptune Model, 2 Telefunken EL34 power tubes  ? "25 Watts"  , Philips 6SL7 preamp tube ,  Rectifier Tube : JJ/Tesla GZ34 Solid Oak Cabinet, oversized Transformers (Standard Neptune is 15 watts w/6v6 tubes) (master,gain,treble,mid,bass) cab:Custom 9 ply Solid Baltic Birch ?1 x 12  "    

 

 

oh yeah...
...early 80's G&L f-100 ...and an '81 gibson howard roberts.  
 I'm excited to record with it,I'll post samples here when I do.