Ciao,
I had two Bass400+ and when some years ago I bought my first M-Pulse (it was a 360 model) I elected it as one of my favorite bass heads: by the preamp you can choose how much the sound of your bass have to be similar an all tube amp and if you turn the knob over 14.30 point (about over 7.5 of volume) you can also get an overdrive sound, very closer to a not fixed bias tubes amp.
The semi parametric eq. let you create any kind of sound and on the M-Pulse you have also a great compressor.
If I can, I suggest you to also buy the M-Pulse footswitch which make you able to control eq. / compressor / effects and additional "solo" volume.
My M-Pulse comes directly from USA but the transformer was bought in Italy. It's a really professional one in fact it can transform any kind of "input" voltage to 110 or 220 voltage by two different "output" connections.
If you like I probably have a couple of pictures to post.
Best!
G.