Product details

The SPL Audio Mercury is a premium stereo digital-to-analogue converter designed for professional mastering studios, critical listening environments, and high-end audio production. Built around SPL’s DAC768v2 conversion architecture and proprietary 120 V Rail Technology, it combines high-resolution digital conversion with advanced analogue low-pass filtering for exceptional detail, dynamic range, and stereo imaging. Supporting seven stereo digital input sources, including USB, AES/EBU, coaxial S/PDIF, and optical S/PDIF, the Mercury offers flexible source selection and synchronisation. Its dual balanced analogue output paths, including a continuously variable output, also enable it to function as a high-quality monitor controller for precision listening and reference-level calibration.

Key Features

High-Resolution Stereo D/A Conversion: DAC768v2 architecture featuring the AKM AK4493SEQ premium DAC chip for detailed, high-quality audio reproduction.
Seven Stereo Digital Inputs: One USB input, two AES/EBU inputs, two coaxial S/PDIF inputs, and two optical S/PDIF inputs.
High-Resolution PCM Support: USB audio conversion up to 32-bit/768 kHz, with supported digital formats and sample rates depending on the input.
DSD Playback Support: Supports DSD over PCM (DoP) up to DSD256 through compatible USB connections.
Dual-Wire AES/EBU: The second AES/EBU input supports Dual-Wire mode for compatible high-resolution digital sources.
SPL 120 V Rail Technology: High-voltage analogue circuitry operating at ±60 V for exceptional headroom and dynamic performance.
DLP120 Analogue Low-Pass Filtering: Dedicated 120 V technology-based filtering designed to preserve transient detail and support accurate stereo imaging.
Seven-Source Selection: Dedicated illuminated buttons allow quick input switching and comparison between connected digital sources.
Flexible Synchronisation: Supports synchronisation to external word clock or compatible digital sources, with sample-rate and synchronisation status displayed on the front panel.
Dual Analogue Stereo Outputs: Balanced XLR FIX OUT and VAR OUT connections for fixed-level and adjustable-level monitoring.
Integrated Monitor Controller: Continuously variable analogue output controlled by an ALPS RK27 potentiometer for smooth volume adjustment and accurate channel tracking.
Selectable Reference Levels: Calibrate 0 dBFS to +14, +15, +16, +17, +18, +20, +22, or +24 dBu for compatibility with professional studio equipment.
Maximum Analogue Input and Output Level: +32.5 dBu.
Input Impedance: 20 kΩ.
Output Impedance: 75 Ω.
Frequency Response: 4 Hz–300 kHz (−3 dB).
Total Harmonic Distortion: 0.000992% at 0 dBu, 1 kHz.
Dynamic Range: 135 dB.
Noise: −102.5 dBu, A-weighted.
Power Supply: Internal linear power supply with shielded toroidal transformer; selectable 115 V or 230 V AC operation.
Power Consumption: Maximum 40 VA.
Rack Format: 19-inch rackmount, 1U.
Dimensions: 482 × 44 × 300 mm (W × H × D).
Weight: 4.55 kg.
Manufacturing: Designed and manufactured in Germany.