X30 vs Calyx Femto
The Femto's signal-to-noise is 130 dB against the X30's 129 dB, its output voltage 2.0V RMS against 5.1V RMS, and its weight 18.5 kg (41 lbs) against 10 kg (22 lbs). Both share thd (0.000%).
AI-generated product photo — not official manufacturer imagery.
DigitalDACsStreamers
Estimated price (community-sourced)
$2,397 - $2,700
Around — community and catalog average, updates slowly
About the X30
The GUSTARD X30 is a top-tier digital-to-analog converter (DAC) and network streamer featuring four ESS Sabre ES9039SPRO DAC chips in mono configuration for balanced output. It includes a built-in ROON endpoint, AirPlay, UPnP, and NAA support, with a Linux-based streaming system optimized for low latency. The analog stage uses discrete Class A components and R2R relay volume control, while dual toroidal transformers ensure clean power delivery. Technical highlights include >130dB dynamic range, <0.0001% THD+N, and a 10MHz external clock input.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- DAC Chip
- ES9039SPRO
Analog Output
Analog signal output specifications
- THD
- 0.000%
- SNR
- 129 dB
- Output Voltage
- 5.1V RMS
- Max Output Voltage
- 5.1V RMS
Connectivity
Input and output connections
- Digital Inputs
- LAN, USB, I2S, coaxial, optical, AES/EBU
- Analog Outputs
- XLR, RCA
Streaming Services
Supported streaming platforms and protocols
- AirPlay
- Yes
- Roon Ready
- Yes
- Spotify Connect
- Yes
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 430 × 80 × 300 mm (W × H × D)
- Weight
- 10 kg (22 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions