The FX-Audio TUBE-06 MKII is an affordable and efficient tube preamplifier. Its preamplifier stage is based on the use of a pair of 6N3 tubes. It is associated with a digital/analog conversion section using an ESS ES9018K2M DAC chip, a CM6642 USB interface or other quality components such as NE5532 and OPA2134 AOs. It is thus capable of a musical and warm restitution. It also supports audio streams up to PCM 24bit 192kHz.

Practical, its front panel is equipped with both a volume control, but also adjustments to adapt the bass and treble levels. It also benefits from a complete connectic with USB-B, Optical and RCA stereo input, and RCA stereo output as well as a subwoofer output.