Well, I have officially given up my search for tone. This Fathom 600 head reminds me of some of the older Ampeg stuff but with more balls. I suggest that if anyone is in need of a new head, give this a try. The head room is just astonishing and will fill the stage all night long.

After much poking and prodding from Rich at Mesa, I finally plugged my Series II into that amp last night.  We just got in all the new bass amps from Mesa-Boogie. (SCB-S2 has not been played through a bass amp in years)  I like the PA.  
 
Anyway, HOLY S**T.  That thing is freaking loud.  Didn't sound bad either (for a bass amp)

Tone for days and loud as all get out. I have serial # 30 and I am quite proud of that small feat. In some ways you can call me a guinea pig. My wife sat across from me about 10 ft away and looked at me as if I had lobsters crawling out of my ears. In her words, WOWWWWWW!!

I guess WOWWWWWW!! is much better than You think you're play that damn thing in the house?!?!?

Alembic and Mesa = ultimate tone (IMHO)

You got it brother. I was a Euphonic guy for a while but I noticed the louder it got the less I could hear myself. Kind of weird but its the truth. So I did the logical thing and went back to using Mesa

Gotta agree with the Mesa/Alembic combo.

Me too.... hundreds of gigs with my Rogue 5 and Mesa amp with no problems....
 

Hey, Danny:
Wanna sell your iAmp , Cheap?  =] You KNOW I don't have much money right now!
 
Mike. tho

Mike, I traded it for the Fathom with cash to boot.

More Alembic/Mesa:

I wish Mesa would have included the compressor from the M-Pulse 600 on their Titan 1200, Big block 750, and Fathom models.
Flip, that must be fun to feel the tube thump from your rig!
Paul

Do you take that whole rig on your gigs fc_spoiler?
 
Jazzyvee

I'm another Alembic + Mesa Boogie user.  I bought a Venture 600 combo amp last fall and it absolutely destroys.  Loud as all hell and tone for days and days.  In December I played a gig infront of ~2000 people in a gigantic room.  That combo amp destroyed worlds and it still had plenty of headroom.

Totally agree with you on the compressor. Flip I think that's a set up Cliff would be happy with!