This is an Acoustic Image Coda Series II. I mainly used it for jazz, and the sound is quite clear with a flat response. I think it's an excellent bass amp that can handle both electric and upright bass. It can also be used perfectly well as a guitar amp. There's a woofer separate from the front speaker, and the low frequencies are output from the bottom of the amp. I believe this design was intended to minimize feedback, which is also a good point of this amp. The sound is excellent, but it's heavy, and it's difficult to transport using public transportation, so I'm selling it because I want to replace it with a different amp. I believe the basic output is fine, but I haven't checked every detail. Please be aware of that. Accessories include legs for tilting (which are detachable and attached to the bottom of the amp), a power cable, and a dedicated case. The case has stains as shown in the photos.