We installed the upgrade yesterday, and it works beautifully!  What a wonderful instrument, and so many new things to explore.  This would not have been possible in the USA without you Mr. Taro!  You made it all so easy. I am definitely ordering all new equipment from you in the future!

Sincerely and most thankfully,

Scott Rioux
Rocky Hill, CT
USA

PS I had Yamaha authorized technician do the install. He said it was very easy to follow your English directions. He used to work on my HX-1 and was very familiar with ELX series. He had no problem.