SP400 is a modern and functionally superior iteration of the original ‘pancake’ design introduced by Switchcraft in the 1960’s. Since its inception in 2017, SP400 and all its subsequent SP and SPS models have set the new standard in low profile audio connectivity. SquarePlugs are used across the globe by top professionals in the audio system integration industry and beyond


SP500 is the twin brother of the SP400 except for that it allows for larger diameter cables to be used


SP600 is the newest member of the SP series. Designed to work with cables up to 6.2mm OD, it’s the perfect choice for instrument cables assemblies


SP550-S is the TRS variant of the SP400/500. It features a slightly larger cable opening than the SP500 to accommodate balanced cables