Home / Accessories / Adapters, Connectors & Electronics / Bespeco AD326 – Mono to Stereo Jack Sale! Bespeco AD326 – Mono to Stereo JackJOD9.00 JOD5.00 Brand: Bespeco Model: AD326 Bespeco AD326 - Mono to Stereo Jack quantity Add to cart Category: Adapters, Connectors & Electronics Product ID: 2696 Description Description Bespeco AD326 Adapter, diam. 6.3 mm stereo jack connector – diam. 6.3 mm mono jack socket.