The AN-S5 Step-Up Transformer converts the low current output of the MC Cartridge to a higher voltage, low current signal, that can be more easily amplified by an MM Phono Stage, resulting in high-quality sound reproduction. 

The AN-S5 is designed and manufactured by Audio Note (UK) using high-quality materials and advanced winding technology to achieve optimal performance. The internal transformers feature interleaved super mumetal 250 cores, which provide excellent magnetic shielding and minimize electromagnetic interference. The windings are made from 99.99% pure Copper wire, which helps to reduce signal loss and maintain signal fidelity. Additionally, the transformers are securely supported inside the chassis with a solid copper clamp, which provides stability and minimizes the risk of damage to the delicate components.

Matching the impedance of the MC Cartridge to the input impedance of the AN-S5 is important for achieving the best possible sound quality. To accommodate the different types of MC Cartridges, the AN-S5 is available in low impedance and high impedance versions. 

While converting the low current output signal of the MC Cartridge to a higher voltage, low current signal, the AN-S5 ensures that the signal can be easily and effectively amplified, resulting in high-quality sound reproduction. Overall, the AN-S5 is a high-quality step-up transformer that is designed to deliver exceptional sound quality and is built to last.