The project is two guitars (acoustic, sometimes an Epiphone jazzbox), bass (Barker, with flatwounds) and female singer. The genre is, well, anything she likes, and it's a wide range of countryish ballads to some belted stuff and standards. We cook, at times. And the wild card, bluegrass. Last night she and her husband, a guitarist and computer wonk, showed up with a Bose tower outfit and we are all blown away by the possibilities of this rig in small rooms, restaurants etc. Both guitars will go through it. I want a Bass Rig of Smallness appropriate to the slap of color I have just applied to your mental canvas. The rig may also find use in a 300 pu (Praiser Units) church setting. I like the Mesa Scout but the XLR out issue concerns me (though only for other applications). I am intrigued by the MarkBass stuff but there are just too many models, too many adjectives, too many roman numerals. Help me here. 500 watts I don't need. And should I consider a Shuttle, and which one? As for enclosures that qualify in the lightness category, I have a GK neo 112 and an Accugroove Tri112 and, though they are different, I like them both. I appreciate in advance your thoughtful recommendations.