Roland website: The Roland VK-8M Organ Module puts Roland’s acclaimed “Virtual ToneWheel” organ sound in a convenient desktop unit with nine harmonic bars and retro-style wood panels. COSM Amplifier and Rotary Speaker Modeling further complement these authentic sounds, while an audio input and Active Expression feature let players fade in an external tone with a pedal. The VK-8M makes adding distinctive organ sounds to any setup easy.
According to several reviews, they have praised a Roland VK-8M for the Very easy to use, simple and clear manual; good sound, there is really a Hammond in his right; This unit provides endless hours of fun and great sounds to boot; a midi keyboard live than to haul around the real deal. Also, some users have complained it for the b deam, which when used can be inadvertently,triggered by holding our hand to change the vibrato or chorus.
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To restoring a Roland VK-8M to the factory settings, just simply power on while simultaneously holding the BANK button, WRITE button and H-BAR MANUAL button until all of the panel indicators light. The Factory Reset procedure is complete.
Warning! When you execute “Factory Reset,” the settings you made will be lost. Be sure you want to erase the memory and return the Roland VK-8M to its factory default state before continuing with this procedure. Hopefully the article of “Roland VK-8M Organ Sound Module Factory Reset” can help you.
Reference: Roland VK-8M manual