Denafrips Pontus 15th R-2R DAC

DENAFRIPS PONTUS 15TH R-2R DAC

The Denafrips Pontus 15th is a fully balanced discrete R-2R DAC designed for high-performance two-channel audio systems. Positioned between the Ares 15th and Venus 15th, it combines a 26-bit resistor-ladder conversion architecture, precision digital processing and dual 80VA O-Core transformers in a full-width aluminium chassis.

The 15th Anniversary edition introduces a refined power supply, updated FPGA processing and dedicated connectivity for demanding digital audio systems.

TRUE BALANCED 26-BIT R-2R ARCHITECTURE

Pontus 15th employs a proprietary discrete R-2R conversion architecture with four matched resistor networks and 0.005% precision resistors. Its fully balanced 26-bit PCM conversion is complemented by dedicated 6-bit DSD decoding with 32-step FIR filtering.

The DAC supports both Non-Oversampling (NOS) and Oversampling (OS) modes. Sharp and Slow digital filter options are available for oversampling playback, providing flexibility in digital signal reconstruction without changing the source equipment.

FPGA PROCESSING & PRECISION RECLOCKING

Proprietary FPGA processing combines adaptive FIFO buffering with low-phase-noise crystal oscillators operating at 45.1548MHz and 49.152MHz. The incoming digital signal is buffered and reclocked before conversion, helping reduce dependence on timing variations from the connected source.

The redesigned digital platform also provides configurable I²S pin assignments and DSD channel swapping, allowing integration with compatible digital transports and streamers.

DUAL 80VA O-CORE LINEAR POWER SUPPLY

A key feature of Pontus 15th is its redesigned power supply, built around two 80VA O-Core transformers. The digital and analogue sections benefit from dedicated low-noise power regulation and high-biased constant-current delivery through internal silver wiring.

This substantial power architecture separates sensitive digital and analogue circuitry and supports stable operating conditions throughout the conversion stages.

PCM1536, DSD1024 & FLEXIBLE CONNECTIVITY

USB and HDMI-style I²S inputs support high-resolution PCM up to 1536kHz and DSD up to DSD1024 with compatible sources. Additional connectivity includes two AES/EBU inputs, RCA and BNC coaxial inputs, and Toslink optical.

Balanced XLR and single-ended RCA analogue outputs allow straightforward connection to preamplifiers and integrated amplifiers. Pontus 15th is a fixed-output DAC without built-in network streaming or analogue volume control.

The HDMI-style I²S connection is dedicated to digital audio and requires matching pin assignments between the source and DAC.

DESIGNED FOR DEDICATED HIGH-FIDELITY SYSTEMS

With its full-width enclosure, extensive digital inputs and separate balanced analogue outputs, Pontus 15th is suited to systems using dedicated network streamers, CD transports or digital-to-digital interfaces.

For listeners seeking a higher-tier Denafrips conversion platform, the Venus 15th provides the next step within the current R-2R DAC range.

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