Source: Corporate website, Last Accessed: 2023/11/19

We had the opportunity to look at a D/A converter prototype during the Munich High End Show last year, when the company wouldn't disclose its official name. But now, we know. The third DAC in Merason's portfolio is the Reuss and it's a quite interesting device.
The Reuss features one USB, one coaxial/RCA, one optical/Toslink and one XLR-AES/EBU input. According to the details published, the USB input is based on Amanero technology and ensures a low-jitter music signal thanks to two precise oscillators, which is then galvanically isolated by capacitive isolator components. The signals arriving at the other inputs are also galvanically isolated and de-jittered by means of transformers and capacitors.
The digital-to-analog conversion is performed by two 1794A converter chops from Burr Brown and for a 5 dB improvement in dynamic range, each channel has its own chip. The analog current signal is converted into a voltage signal in a discrete setup, which is buffered through a Class A circuit and routed to the output. The Reuss is fully balanced, i.e. a total of four independent channels are implemented from the two converter modules to the output.
Each part of the circuit has its own power supply, and in total there are twelve of them. Two output channels each are supplied by a separate linear supply with an oversized transformer. The sound influence of components and circuit variants as well as various layouts were thoroughly tested in countless sessions by experienced listeners, the company says. This applies in particular to capacitors, voltage regulators, converter components, transistors, resistors, signal processing, I/V converters and output stages.
The manufacture of the housing, the front panel and the control knobs as well as the PCB component placement, assembly, commissioning and inspection are carried out exclusively in Switzerland.

For more information: https://en.merason.com/

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