R2R Streaming DACIn-house-developed discrete R-2R module (25-bit, complementary): Resistor-based DAC for PCM with a direct, natural soundstage and fine details.True 1-bit DSD converter: Native DSD64–DSD512 signal path; in DIRECT-DSD mode, the bitstream is fed directly into the 1-bit switching array without PCM conversion.FPGA Core: Custom logic for clock management, digital shaping, DoP demux, and seamless switching between PCM and DSD.CK-01 Femtosecond-Grade Clock: The master clock with extremely low phase noise reduces jitter, ensuring improved sound imaging and precision.Three Digital Filters + NOS: Choose classic OS filters or NOS for minimal preprocessing; supports DSD passthrough.Optimized Inputs: USB (XMOS XU316), coaxial, optical, and Bluetooth 5.0—all the essentials without the overhead of network streaming.Analog Convenience: Simultaneous fixed-level outputs via RCA (2 Vrms) and XLR (4 Vrms) for easy integration with preamps and powered speakers.Power supply architecture: Dedicated, independently regulated power supply groups in an integrated low-noise power supply; also supports an external 9–18 V DC input (optional).Ergonomics: Aluminum housing (black or silver), LCD display with adjustable brightness and sleep mode, and included remote control.The Audalytic DR70 is a high-end DAC for discerning audiophiles that combines a discrete R2R architecture with comprehensive compatibility with high-resolution audio formats.Developed by Gustard, this model features an R2R module, a native 1-bit DSD converter, and a dedicated FPGA—all synchronized by a CK-01 femtosecond oscillator—ensuring sound reproduction of exceptional precision and musicality.Whether enjoying music via USB, coaxial, optical, or Bluetooth 5.0—the DR70 stands out as a versatile and high-performance solution, ideal for home audio systems or high-end headphones.Discrete R2R Architecture and Native DSD ConversionAt the heart of the DR70 is a discrete R2R module that delivers remarkably pure PCM conversion without digital artifacts. For DSD formats, the DR70 features a native 1-bit converter capable of processing DSD64 to DSD512 streams without intermediate conversion to PCM, thereby preserving the integrity of the original signal. This approach ensures a natural soundstage, a wide dynamic range, and the reproduction of the finest details, even in the most demanding recordings.FPGA & ClockThe FPGA, developed specifically for the DR70, handles signal processing logic, clock management, and noise-free switching between PCM and DSD modes, while the CK-01 femtosecond oscillator reduces jitter to an imperceptible level, thereby improving the accuracy of the stereo image and the depth of the soundstage.Extensive Connectivity and Integrated StreamingThe DR70 connects seamlessly to all your sources: USB (XMOS XU316): Supports PCM streams up to 32-bit, 768 kHz, and native DSD up to DSD512, as well as DoP64 through DoP256.Coaxial / Optical: Compatible with PCM streams up to 24-bit, 192 kHz, and DSD DoP64.Bluetooth 5.0: Integrates the LDAC (24-bit/96 kHz), aptX, AAC, and SBC codecs for high-resolution wireless listening.Thanks to this versatility, the DR70 can be integrated into a wide variety of configurations, whether in a wired system or a wireless setup.Analog Outputs and Power SupplyThe DR70 offers simultaneous RCA (2 Vrms) and XLR (4 Vrms) outputs, both with fixed levels, for optimal compatibility with active preamplifiers or speakers. The output impedance is approximately 100 Ω, ensuring a stable connection with most devices.The built-in low-noise power supply is designed to minimize interference, but the DR70 can also be powered by an external 12–18 V DC power supply—for users who wish to further optimize performance.Output Stage and Power Supply CircuitsAudalytic DR70: Design and Ergonomics The DR70’s anodized aluminum housing combines ruggedness with elegance. An LCD display with brightness control and an infrared remote control simplify daily use.The DR70 is compact and lightweight, blending unobtrusively into any audio environment.

Balanced Headphone Amplifier and PreamplifierFully balanced, discrete Class-A circuitry: Four pairs of power transistors deliver high output power and excellent control.LME49720 dual operational amplifier: Wide dynamic range and exceptional fidelity for lifelike sound reproduction.R-2R relay volume control: Provides lossless precision and perfect channel balance across all paths.Versatile inputs and outputs: RCA/XLR inputs, balanced 4.4-mm and unbalanced 6.35-mm outputs.High-impedance compatibility: Effortlessly drives headphones up to 600 Ω.Pure preamp mode: Switchable output for seamless integration into speaker systems.Multi-stage power supply: A low-noise 30-VA transformer and multi-stage regulation ensure a stable, clean power supply.High-quality construction: The aluminum alloy chassis offers excellent shielding and an elegant feel.Audalytic HP70The Audalytic HP70 is a high-end headphone amplifier and preamplifier that delivers exceptional sound quality thanks to its fully balanced and discrete architecture.Developed by Audalytic, a Gustard brand specializing in affordable high-end audio solutions, the HP70 is designed for discerning audiophiles seeking powerful and precise amplification for their headphones or high-quality preamplification.The HP70 features a fully balanced, discrete Class A topology that delivers robust power with precise control using four pairs of power transistors.Each stage is tuned for minimal distortion, while the LME49720 operational amplifiers ensure transparency and musical realism.The built-in low-noise 30-VA transformer and multi-stage regulation circuits minimize ripple and interference, ensuring a clean, stable sound even under heavy load.The precision-machined aluminum chassis improves both signal shielding and thermal stability—for a sound that is as pure as it is powerful.Fully Balanced Design and Discrete ComponentsThe HP70 is distinguished by its fully balanced and discrete design, which utilizes high-quality components such as the LME49720 operational amplifier.This design is based on carefully selected power transistors and discrete components that ensure linear amplification and minimal distortion.Each stage of the amplifier is optimized to deliver fast response and pure sound reproduction with remarkable dynamics and clarity. The use of discrete components also enables better audio signal management, reducing artifacts and improving overall sound fidelity.Versatility and ConnectivityIn addition to its function as a headphone amplifier, the HP70 can also serve as a preamplifier, making it compatible with a wide variety of audio systems. It is designed to integrate seamlessly into a hi-fi system, either in combination with an external DAC or as a standalone component.Optimized Power Supply StageThe HP70’s power supply stage is designed to ensure a stable and clean power supply, which is essential for optimal audio performance. Thanks to careful engineering and high-quality components, the power supply minimizes background noise and interference, ensuring an uncompromising listening experience. This stability results in better instrument separation, a wider soundstage, and more detailed reproduction, even in the most complex musical passages.Build Quality and FinishThe Audalytic HP70 features a robust, meticulously crafted design with a sleek, elegant finish. Its metal housing ensures effective heat dissipation and protection against interference, while its intuitive controls allow for precise adjustment of volume and audio settings.