Hi John, here is the manual which should give you all the spec answers: [url="http://www.acousticimg.com/docs/manual_combo.pdf"]http://www.acousticimg.com/docs/manual_combo.pdf[/url]
I have the 'modern' bigger brother combo the Ten2. I can tell you it works very well for acousticguitar (my guitarist had to borrow it at our gig last Friday as there was no PA, while I used my Phil Jones Briefcase for DB). It also works well with electric bass but it is very clean, so if you want warmer tones you will need to stick some sort of pedal in front (Sansamp, Behringer BDDI, RedDragon, Catlinbread etc). Doesn't go stadium rock loud but it doesn't sound like thats what you are after anyway.