Portable EQ &
Headphone Amplifier

Two Amps in One Tiny Package

ZO FS+ is designed and built to the same demanding specs as ZO FS, but includes a secondary AD8397-based amplifier, allowing you to seamlessly switch between SmartVektor FullSpec or a flat frequency response amplifier.

SmartVektor Amp

SmartVektor FullSpec

Flat Response Amp

Flat Response Amp