Steve Vai signature model Spark MINI, A+
Overall I'm please with my new amplifier/Bluetooth speaker. Easy to use and the sound and volume capabilities are impressive. The tuner can cause the unit to disconnect from Bluetooth in my experience, and the Bluetooth can disconnect at times. . . but it isn't a huge concern. The Spark application is very cool with it's many features, and the instrument cable supplied is of very good quality. I will be very interested in other Positive Grid products in the future.