Onyx vs Sonnet Digital Audio Morpheus
The Morpheus's signal-to-noise is 120 dB against the Onyx's 145 dB, its thd 0.004% against 0.006%, and its weight 3.2 kg (7 lbs) against 3.1 kg (7 lbs). Both share max sample rate (384 kHz).
AI-generated product photo — not official manufacturer imagery.
Onyx
Metrum AcousticsDigitalDACs
Estimated price (community-sourced)
$2,628
Around — community and catalog average, updates slowly
About the Onyx
The Metrum Acoustics Onyx is a standalone digital-to-analog converter (DAC) from the Netherlands-based manufacturer, featuring a non-oversampling (NOS) design with four second-generation Transient DAC Two (DACTWO) R2R ladder modules—two per channel in parallel, controlled by an FPGA for optimal linearity. It delivers a -145 dB noise floor, 24-bit dynamic range, and 120 dB channel separation, ensuring precise instrument positioning and a smooth, refined sound with excellent bass and soundstage. Inputs include USB (up to 384 kHz), coaxial SPDIF (up to 192 kHz), optical (up to 96 kHz), and AES/EBU (up to 192 kHz), with optional I2S and MQA modules available. Outputs are balanced XLR and single-ended RCA. Power is supplied by a 15 VA toroidal transformer. Dimensions are 290 x 250 x 60 mm, weighing 3.1 kg. Metrum Acoustics has ceased operations due to bankruptcy, making new units unavailable.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- Bit Depth
- 24-bit
- Max Sample Rate
- 384 kHz
- MQA Support
- Yes
- DAC Chip
- 4x Transient DAC Two (DACTWO) R2R ladder modules (2 per channel)
Analog Output
Analog signal output specifications
- THD
- 0.006%
- SNR
- 145 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- USB, Coax, Optical, AES/EBU
- Analog Outputs
- Balanced XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 290 × 60 × 250 mm (W × H × D)
- Weight
- 3.1 kg (7 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions