5150 II was like a bad 5150 I sound-wise, if you ask me. who cares about clean channel, extra eq or footswitch.
but you never know in these days of cutting costs... look what happened to the mighty Ampeg SVT [ja, I am a bass player] during the last few years. same amp, different plant, terrible results...
anyway, 6505 goes for ca. 1.100 euro in Germany, thinking about getting one then.