

The Monitor and Phones knob also is Mute to Max with a 48V Phantom power button to drive condenser mics and then a headphones ¼” jack port to the far right. The “To Mone” knob sends the input signal directly to the monitor outpurs for no-latency, analog monitoring. The Monitor knob offers Mute to Max control with a Mono/Stereo button. The gain knobs are linked to an LED light that remains green to show a healthy signal and blinks red when it is experiencing overload. On the front there are five knobs, two gain (-20dB to +40dB), one “To Mon”, Monitor, and Phones knob. The Onyx Blackjack’s overall design is rugged and due to the unique 25 degree angled structure making it easy to see the controls, extremely user friendly.

Overall, comparable interfaces do not possess this sound quality, and audio interfaces that do typically cost ten times as much as the Mackie Onyx Blackjack. It also allows you to track in mono or stereo. Zero latency recording is possible by routing the input directly into the monitors and into the computer simultaneously, reducing any audible delay form player to computer (allowing the computer buffer to be directed towards the CPU). Importantly, the gain staging within the unit means that the preamp circuitry is correctly matched to the A-D conversion, to sustain headroom while minimizing noise and distortion. The 24-bit Cirrus Logic converter is capable of a 114dB dynamic range (A-Weighted), which is way beyond the signal-to-noise spec of most studio gear.

Power for the circuitry comes from the USB port, so there’s no need for a separate PSU. Onyx preamps rival even the most expensive boutique mic preamps for sound quality a good part due to the Cirrus Logic converter. Additionally, the Onyx preamps have a full 60db gain, improved radio frequency (RFI) refection and an ultra-wide dynamic range. The Onyx preamps are designed to go beyond standalone microphone preamps in headroom, transparency, and fidelity.
