Aqua HiFi Formula xHD DAC - Suncoast Audio

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 resistor ladders are generated by a proprietary digital circuit, implemented inside an FPGA (Field Programmable Gate Array). Formula has a sign-magnitude converter structure, and this requires not two but four 24 bit resistors banks, each one made of very low tolerance discrete resistors. Aqua believes that the more musical D/A conversion system is based on the circuit usually identified as "resistor ladder." This technology has been substituted in the mass-market by the so-called sigma-delta converters. The sigma-delta converter is a near-completely digital circuit and for this reason it can be can be integrated on silicon and produced at low-cost. A quality resistor ladder DAC instead uses a circuit based on a set of high

Aqua Formula xHD Rev. 2 Optologic R2R Reference DAC - The Music Room

Aqua Formula xHD DAC - Fidelity Magazine

Aqua tease Formula xHD update

Aqua Formula xHD Optologic Modular DAC

Aqua HiFi La Diva M2 CD Transport - Suncoast Audio

The new LinQ was created following a precise idea. Fast and standard technical solutions do not belong to the aqua philosophy. aqua has developed an

Aqua LinQ

6moons audioreviews: Aqua Hifi Formula DAC

hifi.advice.com_cp Here's the Aqua Diva M2 CD transport, sitting on the Taiko Extreme, coupled via Stillpoints Ultra SS. Just let me tell…

Aqua Formula xHD DAC - Fidelity Magazine