What size of Banana Plugs can be used? April 02, 2024 16:49 4mm Banana Plugs are recommended for use when connecting to our Amps / Stereo Receiver's output terminals. Related articles How do I use banana plugs? Where can I buy spares and accessories for my AXR100D ? What Size Banana Plugs are compatible? Where can I find the AXR100D DAB Scan Update File? What’s included with the AXR100D?