B2 Four Effects and Amp Emulator | ZOOM,Amazon.com: Zoom B2 Four Bass Multi-Effects Processor with 6 DI Boxes, Multi-Layered IR's, Amp Modeling, 100+ Built in Effects, Looper, Lightweight & Audio Interface for Direct Recording to Computer : Musical Instruments,B2 Four Effects and Amp Emulator | ZOOM,試奏動画対応】ZOOM B2 FOUR × BOH | ベース・マガジン,Zoom B2 Four Multi-Effects Processor for Bass Black | Guitar Center