Product Overview & Specifications
The Denafrips Venus 15th is a reference true-balanced digital-to-analogue converter (DAC) built around a proprietary discrete R-2R ladder architecture and 6-bit DSD FIR filtering network. Featuring precision-matched 0.005% thin-film resistor arrays, the unit incorporates an FPGA-controlled adaptive FIFO buffer and reclocking system powered by dual Oven-Controlled Crystal Oscillators (OCXO) running at 45.1584 MHz and 49.152 MHz. Digital and analogue stages are fully isolated physically to maintain a low noise floor.
Housed in a heavy-gauge anti-resonant aluminium chassis, the power supply section utilizes an encapsulated multi-stage linear architecture featuring two single-crystal copper toroidal transformers (one 80W and one 250W unit). The DAC accepts digital signals up to PCM 1536 kHz and native DSD1024 over USB and I²S interfaces, alongside dual AES/EBU, coaxial, and optical TOSLink inputs. Analogue output is delivered via gold-plated single-ended RCA and true-balanced XLR terminals.
KEY FEATURES & PROPRIETARY TECHNOLOGIES
- True Balanced 26-Bit R-2R & 6-Bit DSD Engine: Discrete R-2R network arrays built with precision-matched 0.005% thin-film resistors paired with a 32-step FIR filter DSD architecture.
- Dual Toroidal Linear Power Supply: Upgraded power supply architecture featuring one 80W and one 250W single-crystal copper toroidal transformer with custom audiophile filtering capacitors.
- High-Precision OCXO Reclocking & Clock Output: Dual Oven-Controlled Crystal Oscillators (45.1584 MHz / 49.152 MHz) provide low phase-noise timing, complemented by a dedicated clock output interface for system-wide synchronization.
- Total Physical & Galvanic Isolation: Complete physical separation between the digital processing boards and the analogue R-2R ladder circuits to eliminate electrical interference.
- DSD1024 & PCM1536 High-Resolution Support: Advanced USB audio solution powered by an STM32F446 ARM MCU supporting up to PCM 1536 kHz and native DSD1024.
- Dual AES/EBU & Comprehensive I²S Connectivity: Includes dual AES/EBU inputs (supporting dual XLR L/R channel operation) and three selectable I²S interfaces (HDMI LVDS, RJ45 LVDS, and RJ45 LVCMOS).
- Selectable NOS/OS Modes & Digital Filters: Front-panel selectable Non-Oversampling (NOS) and Oversampling (OS) modes alongside Sharp and Slow digital filter profiles.
SPECIFICATIONS
| Specification | Detail |
|---|---|
| Product Category | High-End Balanced R-2R / DSD Digital-to-Analogue Converter |
| Brand / Model | Denafrips — Venus 15th |
| DAC Architecture | Proprietary True-Balanced 26-Bit R-2R + 6-Bit DSD (32-Step FIR Filters) |
| Resistor Precision | Hand-Matched Thin-Film 0.005% R-2R Network Arrays |
| Master Clocking System | Dual OCXO Crystal Oscillators (45.1584 MHz / 49.152 MHz) with FIFO Buffer Reclocking |
| Sampling Modes & Filters | Non-Oversampling (NOS) / Oversampling (OS) | Selectable Sharp / Slow Digital Filters |
| PCM Resolution Support | 24-bit / 44.1, 48, 88.2, 96, 176.4, 192 kHz (All Inputs) | Up to 1536 kHz (USB & I²S) |
| DSD Resolution Support | DSD64 / 2.8224 MHz DoP (Coaxial, Optical, AES/EBU) | Up to Native DSD1024 (USB & I²S) |
| Digital Audio Inputs | 1x Coaxial RCA, 1x TOSLink Optical, 2x AES/EBU (XLR), 1x USB 2.0 (Type-B), 1x I²S HDMI LVDS, 1x I²S RJ45 LVDS, 1x I²S RJ45 LVCMOS |
| Analogue Audio Outputs | 1x Stereo Single-Ended RCA Pair (2.2Vrms, 625 Ω) | 1x Stereo Balanced XLR Pair (4.4Vrms, 1250 Ω) |
| Frequency Response | 20 Hz – 40,000 Hz (-0.2 dB) |
| Total Harmonic Distortion (THD + N) | 0.001% |
| Signal-to-Noise Ratio (SNR) | 127 dB |
| Dynamic Range & Crosstalk | Dynamic Range: > 132 dB | Stereo Crosstalk: -110 dB |
| Power Supply Core | Encapsulated Linear PSU with 1x 80W + 1x 250W Single-Crystal Copper Toroidal Transformers |
| AC Power Requirement | 100V–240V AC, 50/60 Hz (Worldwide Voltage) |
| Power Consumption | ≤ 20 W |
| Dimensions (W x D x H) | 430 x 380 x 105 mm (Excluding Feet) |
| Net Weight | 19.0 kg |
| Available Finishes | Silver / Black |
Customer Reviews
Denafrips
Guangzhou • Est. 2012
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DENAFRIPS VENUS 15TH R-2R DAC
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