Formula xHD Rev. 2

About the Formula xHD Rev. 2

The Aqua Formula xHD Rev. 2 is a high-end digital-to-analog converter (DAC) featuring a proprietary Optologic R2R ladder DAC architecture with galvanic and magnetic isolation. It uses a hybrid 2-stage XMOS xCore XE216 + FPGA for asynchronous USB decoding and clock generation, enabling high-resolution playback up to 768kHz PCM and native DSD512. The DAC employs no digital filtering to preserve the emotional content of music, with a fully direct-coupled analog signal path free of capacitors. Balanced outputs use transformer coupling, and the device offers a wide range of digital inputs including USB 2.0, I2S (RJ45 AQlink), AES/EBU, coaxial, BNC, and optional optical and AT&T fiber inputs. The analog module Rev. 2 upgrade includes new output transformers, super-fast active components, and improved circuit polarization, enhancing sonic performance. The unit is housed in a solid aluminum case with satin silver finish, measures 450 x 370 x 100 mm, and weighs 9 kg. It is designed for audiophiles seeking a transparent, neutral, and emotionally engaging sound signature with excellent synergy in high-end systems.