If I could make a list of the top Bass Amps I'd love having, it might start with believe it or not a well reputed Solid State amp or 2, , and then a legendary beasts and some modern offerings.
1st would be an Acoustic 360
2nd a GK 800RB
3rd Ampeg SVT
4th Sunn Model T/ Coliseum
5th Mesa Boogie 400+
6th David Eden World Tour
7th Mark Bass,,,,,,,,,
And is $$$$ were no object, I might love trying a Walter Woods on for size, ( HAHA small as heck bass heads)
For now I like my Ashdown Mag 300H, but would not mind trying some of their other heads and even a Marshall Super bass too.