
Neptunium
Compact tube preamp with DI output inspired by Noble preamp, featuring two-band tonestack and switchable high-pass filter.
The Neptunium draws inspiration from the acclaimed Noble preamp, channeling that circuit's warmth and clarity into a smaller, more pedalboard-friendly enclosure. This tube preamp with DI output is designed for players who need to go straight to front-of-house or recording interface while maintaining rich tube tone and professional-grade output. Features two-band tonestack based on classic Fender/Marshall/Vox design, though both controls are boost-only, meaning flat response is achieved with both controls turned fully off rather than at noon.
Includes switchable high-pass filter rolling off lows at -6dB per octave below 90Hz, helping eliminate stage rumble and tighten low end. Volume control on pedal's face affects 1/4" output, while separate volume control on side governs XLR output level. Ground lift switch included to help eliminate hum and buzz.
Uses 12AU7 tube running at over 300V. Requires 9-12VDC center-negative power supply capable of at least 400mA. Compact enclosure measures 4.8" x 2.64" x 1.58". Note: manufacturer announced this was last production run, making these pedals collector's items only available on used market.


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