OK, you asked for it. Overall, they sounded very, very good. However, the vocals sounded a bit thin, this having heard you live on a more than a few occasions. Additionally, the bass guitar sounds seemed to be a bit overpowering, even of the drums. But this may be because I am so accustomed to hearing the balance that Yamaha uses and not accustomed to hearing the SD7, or any Ketron product for that matter.
Keep em coming old friend,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)