Positive Grid US

Seems to work great as an amp - I use it with an acoustic guitar. I was surprised what a great little bluetooth speaker it is. Once I installed the upgrade according to instructions, it’s easy to use.

Very prompt shipping. Arrived days earlier than promised. Spark 40 refurb looks and sounds great. Easy to setup and get started. Online complaints of a "too bassy" sound has not been my experience. Very pleased and highly recommended.

Excellent!

Wish I had purchased sooner. Easy connection iPad or iPhone, so many tones available, great sound for such a little Amp. Charge lasts plenty long.

Awesome!!