Citadel Electronics Dynazero (Citadel Electronics) Noise Gate

Adaptive Noise Gate

Dynazero is the culmination of our experience in noise gate/expander development, featuring an adaptive input detector that reacts to your playing dynamics and automatically adjusts its response time to provide a smooth, transparent gate that handles everything from fingerpicking to chugging riffs.

Galvanic isolation between the detector and gain reduction sections separates the ground paths, effectively eliminating ground loop noise and resulting in clean, hum-free operation, especially when using a four-cable connection to an amplifier or pedal board.

◆Control details・THRESHOLD
Controls the level at which the gate opens. Signals above this setting are allowed to pass, while signals below this setting are attenuated or muted. The higher this setting, the more input signal is required to open the gate.
・HARD / SOFT
Adjusts the gate response to match the dynamics of your playing. HARD provides a tighter, more responsive gate, ideal for precise noise control. SOFT provides a gentler gate, preserving more subtle playing nuances.
・BUFFERED BYPASS (with memory function)
Dynazero features a transparent input buffer that is always active, automatically recalling the last on/bypass state on power-up.
・2-cable method
This is a simple wiring configuration that uses only the Dynazero input and output connectors. This configuration does not use the Dynazero SEND/RETURN connectors, allowing for direct noise reduction without additional cables.
・4 Cable Method
This configuration uses four connectors on the Dynazero. This allows you to control the gate with the direct signal from your instrument while adding distortion with post-preamp gain reduction. This is ideal for maintaining dynamic control even in high-gain environments. When using the four-cable method, the Dynazero's galvanic isolation eliminates ground loop hum.