>"Why adding turns makes ferrites much more effective" [...] >"As happens in power transformer calculations, the impedance ratio is always the square of the

>"Why adding turns makes ferrites much more effective" [...] >"As happens in power transformer calculations, the impedance ratio is always the square of the turns ratio. So increasing turns through the core by x2 lifts its impedance (and attenuation effect) by x4. A x4 increase equates to a 6dB increase." Also: https://www.electronics-tutorials.ws/transformer/audio-transformer.html https://www.electronics-tutorials.ws/transformer/audio-trans... "One of the main applications for audio frequency transformers is in impedance matching."