If it were me...I would go with the hybrid type of amp/head. I like the growl of the Ashdown but it isn't all that warm (IMHO). I haven't liked the Ampegs for quite a while so... But an alternative would be the Eden.
I looked on
Musicians Friend and you can get a "blem" Eden WT800 for about the same price as the other two. It has a tube front end and it can be dialed just about anywhere you want it to be dialed.
The perfect choice for the touring professional!
The powerhouse Eden WT800 World Tour Bass Amp Head features a tube hybrid stereo amplifier design with a conservative rating of 440W per side into 4 ohms, 880W bridged into eight ohms, and 3dB of headroom. If you need to move a lot of air, this is a bass head that will do it. The Eden WT800 bass amp head also has a -12dB input pad, switchable automatic compression, 5-way semi-parametric tone control, mono pre- and stereo-post tone control effects loops, stereo aux inputs, a DI out with ground lift, headphone out, tuner out, and a thermostatically controlled fan.
Eden Blem WT800 World Tour Bass Amp Head Features:
* 440W per side into four ohms
* 880W bridged into eight ohms
* 3dB of headroom
* -12dB input pad
* Switchable automatic compression
* Five-way semi-parametric tone control
* Mono pre- and stereo-post tone control effects loops
* Stereo aux inputs, a DI out with ground lift
* Headphone out
* Tuner out
* Thermostatically controlled fan
I have one of the WT800C's and a D410xlt at the school where I teach. We use it for Jazz, Pepband, Screamo, Imo, Hard Rock, Pop, and Blues. (I have a record company on campus) It works fine in all of those styles and it is never too quiet. In fact most of the kids can't believe how loud it is and how clear.
I use my own personal rig (WT800C, D210XST, & D410XLT) for Modern Rock and it can growl and pound with the best of them...No sound man, ever, has complained. Exactly the opposite has occurred...they love it. Nothing needs to be done - ever.
So, maybe go look/listen to this one while you are in your search.
Just My Thoughts.