Fezz Argentum X10 Step Up Transformer

Fezz Audio Argentum X10 is a no-compromise high-end MC step-up transformer that boosts low-output moving-coil cartridges for use with 47 kΩ MM phono stages. It uses 99.9% pure silver windings on a nanocrystalline high-permeability core with dual shielding for ultra-low noise, wide 8 Hz–110 kHz bandwidth, and <0.01% THD. Passive, no external power required.

 Key Features

•  99.9% pure silver windings on nanocrystalline high-μ core — maximized fidelity 
  
•  Dual shielding: high-μ mu-metal (magnetic) + pure OFC copper ribbon (electric) for noise rejection 
  
• 1:10 step-up ratio (≈20 dB) — ideal for 10–50 Ω MC cartridges into 47 kΩ MM inputs 
  
• Exceptionally low distortion: THD < 0.01% at rated level 
  
• Ultra-wide bandwidth: 8 Hz – 110 kHz (Z = 30 Ω) for natural bass and airy treble 
•  Fully passive device — no active components, no power supply needed 
  
• Solid 2.5 kg chassis with compact footprint for easy placement