The Formula DAC is the first in the aqua’s production to show a proprietary D/A conversion system, that we name Optologic. The signals sent to the
Aqua Acoustic Quality Aqua Formula xHD D/A processor
Aqua Formula xHD v2 Output Board upgrade HFA - The Independent Source for Audio Equipment Reviews
Aqua Formula xHD v2 Output Board upgrade HFA - The Independent Source for Audio Equipment Reviews
Review: The Aqua Formula xHD Rev.2 D/A processor – Homecinema Magazine
Aqua Formula xHD DAC HFA - The Independent Source for Audio Equipment Reviews
Aqua Formula xHD DAC - Fidelity Magazine
aqua Formula xHD Rev. 2 DAC - Positive Feedback
aqua Formula xHD Rev. 2 DAC - Positive Feedback
Aqua Formula xHD v2 Output Board upgrade HFA - The Independent Source for Audio Equipment Reviews
Review: The Aqua Formula xHD Rev.2 D/A processor – Homecinema Magazine
Aqua HiFi Formula xHD DAC - Suncoast Audio
Aqua Audio LaDiva CD transport and Formula xHD DAC