Matrix Audio SC-1 Reference Clock Review: The Ultimate Timing Upgrade for Your HiFi System
In this Matrix Audio SC-1 Reference Clock Review we explore how Matrix Audio’s debut clock source can revitalise your digital front-end. If you’re chasing ultra-low jitter, superior phase noise performance and rock-solid synchronisation for your streamer, DAC or CD player, the SC-1 could be the missing piece in your high-end audio chain.
Precision OCXO at the Core
The heart of the SC-1 is a custom oven-controlled SC-cut crystal oscillator (OCXO), meticulously temperature-regulated to suppress phase noise and ageing. Thanks to the oven chamber’s precise thermal control, ambient fluctuations become inconsequential. The result? A reference clock with a frequency accuracy under ±0.01 ppm out of the box and stability of <0.003 ppm across –40 °C to +70 °C. Short-term stability sits at an astonishingly low 5×10–13 @1 s, meaning your digital sources lock to a rock-steady timebase.
Four Independent, Buffered Outputs
Gone are the days of sharing a single clock feed. The SC-1 sports four BNC outputs, each with its own driver buffer. Whether you link a streamer and two DACs or multiple players, each output maintains 50 Ω impedance, delivers 0.5 Vrms (sine) or 1.0 Vrms (square), and keeps cross-talk to an absolute minimum. Choose square wave for ultimate lock accuracy or sine wave if your gear prefers a smoother waveform.
Industry-Leading Phase Noise & Jitter
Measured at the BNC ports, the SC-1 achieves better than –118 dBc/Hz @1 Hz, –140 dBc/Hz @10 Hz and plunges to –160 dBc/Hz beyond 1 kHz. A noise floor of –170 dBc/Hz and total jitter of just 20 fs (1–100 Hz) sets a new benchmark in its class. By dramatically reducing timing errors, spatial definition sharpens, tonal colours deepen and micro-dynamics spring to life.
Enhanced Calibration & Vibration Isolation
For long-term accuracy, the rear panel’s 1PPS input lets you lock the SC-1 to an external GPS-level reference. An LED indicates calibration status and our complimentary calibration service keeps drift at bay. Meanwhile, Matrix Audio’s CBVB vibration absorption foot pads isolate the OCXO from environmental rumble, ensuring maximum signal purity.
Robust Linear Power Supply
Under the hood is an advanced auto-adaptive linear PSU, supporting 100–240 VAC with over/undervoltage protection. Dual multi-stage regulators isolate oven and clock circuits, eliminating power-supply noise. Warm-up time is under five minutes at 25 °C, after which the front-panel LED switches from flashing to steady, signalling optimal performance.
Who Should Consider the SC-1?
- Digital purists seeking the lowest jitter and noise floor.
- Multi-DAC and streamer setups requiring synchronised clocking.
- Owners of high-end CD transports and mastering players.
- Systems where every decibel of clarity and imaging matters.
Pros & Cons
| Pros |
Cons |
| Ultra-low phase noise (< –118 dBc/Hz @1 Hz) |
Premium price reflects flagship performance |
| Four independent buffered outputs |
Fixed waveform at factory (sine or square) |
| Precision OCXO with SC-cut crystal |
Warm-up time ~5 minutes |
| 1PPS calibration & free service |
Requires dedicated rack space (97 mm height) |
| CBVB vibration isolation feet |
Limited to 10 MHz output frequency |
Elevate Your HiFi Timing Today
The Matrix Audio SC-1 Reference Clock stands as a monumental upgrade for discerning audiophiles. By delivering rock-steady timing and ultra-low phase noise, it breathes new life into your digital sources—enhancing resolution, staging and musicality. Ready to experience the difference? Speak with our team or call us on 1300 308 711 to discuss how the SC-1 can transform your system. Our experts are here to guide you every step of the way—nationwide.
