Stereo Preamplifier, Room Optimizer, Audio Renderer & DAC
The loudspeaker/room optimization technology integrated into this full-featured stereo preamp can take your high-fidelity system to a new level of Acoustic-Fidelity. No other preamplifier will make such a dramatic improvement in tonal balance and sound stage. This is the next generation of high-end sound.

ST2 HiFi
Stereo Processor, Room Optimizer & DAC
The only digital audio processor & DAC that brings a dramatic improvement to any high-end stereo system, thanks to its unique loudspeaker/room optimization technology. This is where the Acoustic-Fidelity wave started, back in 2010.