I am a keyboard player and bought this for my Clavinet D6. I previously owned the Blue Junior III with all the Bill M. mods which helped, but it still did not sound great. The highs were unpleasant and piercing and the whole tone was unbalanced to my ears. This amp is so much improved and sounds 100 times better. I really love the overall tone, the overdrive you can get by adjusting the Master and Volume, and the reverb is so much better and warm sounding, Definitely a marked improvement!