Product Overview & Specifications
The Denafrips ERATO is a compact desktop R-2R digital-to-analog converter designed to deliver the musical, organic sound signature for which Denafrips is renowned. Serving as an entry point into high-fidelity R-2R audio, the ERATO features a true balanced 24-bit R-2R architecture paired with a 6-bit DSD resistor network utilizing hand-matched 0.005% ultra-precision resistors.
Housed in a CNC-machined solid aluminum unibody chassis, the ERATO integrates an FPGA digital signal processing engine with dual FEMTO crystal oscillators (45.1584 MHz / 49.152 MHz) and adaptive FIFO buffering for low-jitter signal reconstruction. Power is supplied by an internal linear power supply featuring a custom 60 VA O-core shielded transformer. Its proprietary USB receiver—powered by an STM32F446 ARM Cortex-M4 MCU—supports extreme decoding rates up to PCM 1536 kHz and native DSD1024. Remote control operation is supported via the optional DN-Y3 infrared remote.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- True Balanced Discrete R-2R + DSD Network: Utilizes hand-matched 0.005% low-thermal-effect resistors across a balanced 24-bit R-2R ladder and a 6-bit DSD FIR filter network.
- FPGA Processing & Dual FEMTO Clocks: Onboard FPGA platform handles adaptive FIFO buffer reclocking and digital filtering using 45.1584 MHz and 49.152 MHz FEMTO crystal oscillators.
- Custom 60 VA O-Core Linear Power Supply: In-house wound O-core shielded transformer with multi-layer copper shielding and high-capacity capacitor arrays minimizes EMI/RFI noise.
- Proprietary STM32F446 USB Platform: ARM Cortex-M4 MCU USB audio interface supporting licensed Thesycon drivers for Windows and driverless plug-and-play for macOS and Linux.
- User-Selectable NOS / OS & Filter Modes: Allows listeners to toggle between Non-Oversampling (NOS) and Oversampling (OS) modes, as well as Slow or Sharp digital filter profiles.
- Solid CNC Aluminum Unibody Chassis: Precision-milled aluminum enclosure protects sensitive digital and analog audio stages from external electromagnetic interference.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | Compact Desktop Balanced Discrete R-2R DAC |
| Brand / Model | Denafrips ERATO |
| DAC Architecture | True Balanced 24-Bit R-2R + 6-Bit DSD (32-Step FIR Filters) |
| Resistor Precision | Hand-Matched 0.005% Low Thermal Effect Precision Resistors |
| Digital Signal Processing | FPGA Platform with Dual CPLD Control & Adaptive FIFO Reclocking |
| Master Oscillators | Dual FEMTO Crystal Oscillators (45.1584 MHz / 49.152 MHz) |
| USB Microcontroller Engine | STM32F446 ARM Cortex-M4 MCU (Thesycon Driver for Windows / Driverless Mac & Linux) |
| USB Sample Rate Support | PCM: 24-Bit / 44.1 kHz to 1536 kHz | DSD: DSD64 to DSD1024 (Native) |
| Coaxial & Optical Rate Support | PCM: 24-Bit / 44.1 kHz to 192 kHz | DSD: DSD64 (via DoP) |
| Digital Audio Inputs | 1 x USB 2.0 Type-B, 2 x Coaxial S/PDIF, 2 x Toslink Optical |
| Analog Audio Outputs | 1 x Stereo Gold-Plated RCA (Unbalanced) 1 x Stereo Pair XLR (Balanced) |
| Analog Output Voltage / Impedance | RCA: 2.0 V RMS @ 0dBFS (625 Ω) XLR: 4.0 V RMS @ 0dBFS (1250 Ω) (Max Gain: 4.46V RMS) |
| Sampling & Filter Modes | Non-Oversampling (NOS) / Oversampling (OS) | Filters: Slow / Sharp |
| Frequency Response | 20 Hz – 70 kHz (+1 / -3 dB) |
| Total Harmonic Distortion + Noise (THD+N) | ≤ 0.003% (A-Weighted) |
| Signal-to-Noise Ratio (SNR) | ≥ 119 dB (A-Weighted) |
| Dynamic Range | ≥ 119 dB |
| Stereo Crosstalk | ≤ -87 dB |
| Power Supply & Transformer | Linear PSU with Custom 60 VA Shielded O-Core Transformer |
| Power Requirement & Consumption | 115V AC / 60 Hz or 230V AC / 50 Hz | Consumption: ≤ 20 W |
| Chassis & Accessories | CNC-Machined Aluminum (Black or Silver Finish) | Supports Optional DN-Y3 Remote |
| Dimensions (W x D x H) | 220 x 255 x 65 mm |
| Net Weight | 3.2 kg |
| Warranty | 12 Months |
Customer Reviews
Denafrips
Guangzhou • Est. 2012
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DENAFRIPS ERATO R-2R DAC
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