Why do we custom isolation transformers? Flexibility is the key advantage, among the others. Here we list a few options and actually there a...

Happy 2025 to everyone!  There aren't nothing much to blog about after many years of research and development of various types of audio ...

It has been a while! We're still alive but have been busy with various industrial or corporate projects than consumer sales.  Why do we ...

Output transformer primary inductance - warming, long topic with some simple maths. LOL.  What's the best primary inductance for an outp...

Balanced power for mains has been known for ages and it brings tremendous improvement to the sound of many audio setups, especially with our...

Howdy everyone! Greetings from J&K Audio Design team. Hope everyone is safe and sound.  We're clearing out stocks again! There are j...