AUDALYTIC DR70 and DR70n R2R DACs

The AUDALYTIC DR70 and DR70n are desktop R-2R DACs built around the same proprietary discrete resistor ladder architecture, native 1-bit DSD conversion stage, FPGA-based digital processing platform, and femtosecond clocking system. Both models support PCM up to 768kHz/32-bit and native DSD512 playback while providing balanced XLR and single-ended RCA outputs. The primary distinction between the two is network functionality—the DR70 operates as a dedicated DAC for direct digital sources, while the DR70n adds integrated streaming hardware, LAN connectivity, and network audio services.

Discrete R-2R conversion architecture

At the center of both DACs is AUDALYTIC's proprietary discrete R-2R ladder module. Unlike conventional delta-sigma DAC designs that rely on integrated conversion chips, the DR70 series uses precision resistor networks to perform digital-to-analog conversion through a complementary 25-bit architecture.

Native DSD conversion and FPGA control

Both models incorporate a dedicated 1-bit DSD conversion stage capable of handling native DSD64 through DSD512 playback. When operating in Direct DSD mode, incoming DSD data bypasses PCM conversion and is routed directly to the DAC's switching array, preserving the original pulse-density modulation signal path.

A custom FPGA manages critical digital functions including clock control, digital shaping, DoP demodulation, and PCM/DSD switching. The FPGA platform also enables multiple filter options, including NOS (non-oversampling) operation and DSD passthrough modes, allowing users to select how digital data is handled before conversion.

Clocking and power architecture

The DR70 and DR70n both utilize AUDALYTIC's CK01 femtosecond clock module. Precise clock timing is essential in digital audio conversion because timing errors can contribute to jitter and reconstruction inaccuracies. The CK01 module provides highly stable timing throughout the digital processing chain and conversion stages.

Power is supplied through independent regulation groups dedicated to different circuit sections. By separating critical analog and digital power domains, the design minimizes interaction between processing and output stages while maintaining consistent operating conditions across the DAC.

Connectivity options

Both DACs provide fixed-level balanced XLR and single-ended RCA outputs simultaneously, allowing integration with a wide range of downstream equipment including preamplifiers, integrated amplifiers, active loudspeakers, and headphone amplifiers. A low-impedance analog output stage helps maintain signal integrity across different system configurations.

The DR70 includes USB-C, optical, dual coaxial, and Bluetooth 5.0 inputs. Bluetooth supports LDAC, AAC, SBC, and aptX codecs, with LDAC transmission up to 24-bit/96kHz. USB operation is supported on Windows, macOS, and Linux systems.

The DR70n includes the same USB, optical, coaxial, Bluetooth, and analog connectivity while adding a LAN connection, TF card slot, and dedicated network streaming hardware. Integrated network services include Roon Bridge, AirPlay, UPnP/DLNA, HQPlayer NAA, and browser-based management functionality.

Choosing between the DR70 and DR70n

The DR70 and DR70n share the same DAC architecture, FPGA platform, analog circuitry, clocking system, Bluetooth implementation, and audio performance specifications. For users who primarily connect computers, transports, gaming devices, televisions, or external streamers, the DR70 provides the complete conversion platform without integrated networking features.

The DR70n is intended for listeners who want streaming functionality built directly into the DAC. Its onboard network hardware allows it to function as both a DAC and network audio endpoint, reducing the need for separate streaming devices while supporting a broad range of software ecosystems and playback methods.

Availability

The AUDALYTIC DR70 and DR70n are available now on Apos.