DIY Moving Coil Step-Up Transformers | MC SUT Kits

Building your own moving coil step-up transformer (MC SUT) is one of the most rewarding DIY audio projects. With the right transformer and careful loading, a DIY SUT can rival - or exceed - many commercial preamps. This collection offers a selection of Lundahl moving coil transformers and accessories ideal for DIY builders. Whether you’re experimenting with different ratios, exploring balanced or single-ended wiring, or designing your own enclosure, these transformers provide the perfect starting point. For inspiration and reference, explore our MC1 step-up transformer preamp, which is based on the same proven Lundahl technology and optimised loading techniques.