OPL4 Shockwave

On the MSXRio' 2010 Fair in March, Ricardo Oazem of Tecnobytes released his soundboard: OPL4 Shockwave. The Shockwave is entirely compatible with the Moonsound, using OPL4 and 1Mb of Sample RAM. Oazem uses a DAC to improve sound quality. The soundboard costs about 160 Euro (shipment not included), and Oazem is thinking about shipment overseas as well.

Relevant link: MSXRio' 2010