volca nubass - VACUUM TUBE SYNTHESIZER | KORG (USA)。Korg Volca Nubass Sound Demo (no talking) with NUX NDD-7 Tape Delay。Get started with the Volca Nubass - your first five minutes。Used KORG Used KORG volca nubass Synthesizer | Guitar Center。サウンドハウスで新品購入動作音出し問題なし