Sennheiser HD 400S Component Isolation This dedicated amplifier features premium

This dedicated amplifier features premium hand-matched 6SN7 vacuum tubes

▶ NAC-N272 to NAP 300 or NAP 500

while the ultra-thin Beryllium-coated torus ensures fast transient response and neutral character

while integrated Metal-Layer Noise-Dissipation technology eliminates high-frequency interference

Sennheiser HD 400S Component Isolation This dedicated amplifier features premiumCompact closed back around ear headphones that fold for easy portability. Built in inline microphone and controls let you manage calls and music directly from your device. Low 18 impedance ensures compatibility with smartphones and portable audio players.