Citadel Electronics –
Precision in tone
Debuting our first series of pedals at Guitar Summit 2025. Designed by experienced engineers and musicians, every product reflects careful design, practical innovation, and uncompromising sound quality.
Designed by Musicians, for Musicians.
This series of seven pedals combines our passion for music and engineering with a focus on analog circuit design. We craft each pedal to meet high standards of sound quality and reliability, creating products that we ourselves would use and be proud of.
Bus Driver draws heavy inspiration from the mix bus compressors found in vintage SSL® mixing desks, offering everything between transparent and extremely squashed studio-quality compression with user-friendly controls. The LED bar provides a precise visual representation of the gain reduction.
Controls
COMPRESSION is used to change the amount of gain reduction. The compression amount is indicated by the GAIN REDUCTION meter.
MAKEUP applies a gain boost after compression to compensate for the gain reduction.
ATTACK controls how quickly the compressor kicks in once the signal level exceeds the compression threshold. Attack time is increased by turning the control clockwise.
RELEASE changes the recovery time after compression has been applied. Release time is increased by turning the control clockwise.
RATIO sets how steep the gain reduction is after the signal exceeds the threshold. Higher settings control the dynamics better but result in a more apparent compression sound. The settings from left to right are 2:1, 4:1 and 10:1.
AUTO RELEASE is enabled by holding both the RATIO and SC HPF buttons. In this mode the RELEASE control is disabled and becomes automatically controlled related to the input signal.
SC HPF (side chain high-pass filter) reduces the amount of compression for low frequencies. Higher settings can help achieve gentler compression and increased low end especially with bass instruments. The settings from left to right are 0 Hz, 100 Hz, 200 Hz.
TRUE BYPASS WITH MEMORY Bus Driver uses a relay for true bypass. On power-up, the pedal automatically recalls the last engaged/bypass state.
Specifications
Input impedance: 1 MΩ
Output impedance: 1 kΩ
Power supply (not included):
Voltage: +9 VDC
Polarity: Center negative
Current draw: 150 mA
Dimensions:
Length: 114 mm
Width: 62 mm
Height: 58 mm
Weight: 250 g
Manual
Bus Driver (English / Deutsch / Español)
Product features, specifications, and appearance are subject to change without notice. While we make every effort to ensure accuracy, product images, descriptions, and specifications may differ slightly from the actual product.
Particle Drive is an overdrive pedal designed to replicate the essence of a modern British high gain amplifier. The effective gain staging allows the pedal to deliver mild overdrives as well as full blown high gain tones. It combines distortion with the adaptive noise gate technology found on our Dynazero pedal.
Controls
LEVEL controls the output volume of the pedal.
GATE sets the threshold at which the noise gate activates, allowing only signals above this level to pass through while muting or reducing those below. The gate detector is placed before the distortion circuit for precise signal control.
TONE shapes the high-frequency response after the distortion circuit, allowing you to fine-tune the brightness or darkness of the overall tone.
DRIVE adjusts the amount of distortion.
BODY selects from three distinct voicings, each offering a unique midrange character. These tonal differences are particularly noticeable when Particle Drive is paired with a clean amplifier. Together with the Tone control, the Body switch provides a powerful frequency-shaping tool, allowing you to fine-tune the distortion’s tone and adapt its response to complement your amplifier’s characteristics.
TRUE BYPASS WITH INITIAL STATE SWITCH lets you set the pedal’s startup state using the side switch, determining whether it powers up in bypass or engaged mode.
Specifications
Input impedance: 1 MΩ
Output impedance: 100 Ω
Power supply (not included):
Voltage: +9 VDC
Polarity: Center negative
Current draw: 100 mA
Dimensions:
Length:114 mm
Width: 62 mm
Height: 58 mm
Weight: 250g
Manual
Particle Drive (English / Deutsch / Español)
Product features, specifications, and appearance are subject to change without notice. While we make every effort to ensure accuracy, product images, descriptions, and specifications may differ slightly from the actual product.
Overtuber is our interpretation of a classic tube driver pedal, designed to expand the tonal range by adding a high voltage ‘Boost’ mode. With our automatic bias topology, this pedal optimizes the performance of the preamp tube, delivering consistent harmonics and dynamics to the sound.
Controls
LEVEL controls the output volume.
TONE adjusts the high-frequency response to fine-tune the brightness of your tone.
BODY shapes the low frequencies after distortion, adding control over the overall thickness and fullness of the sound.
GIRTH enhances the saturation of low frequencies, working interactively with the Gain control.
GAIN adjusts the overall saturation, setting the amount of distortion across the full frequency range. It works interactively with Girth, which specifically controls low-frequency saturation, allowing you to fine-tune both the depth and intensity of the overdrive.
TRUE BYPASS WITH INITIAL STATE SWITCH lets you set the pedal’s startup behavior using the two side switches, determining whether it powers up in bypass or engaged mode and with boost on or off.
Specifications
Input impedance: 1 MΩ
Output impedance: 5 kΩ
Power supply (not included):
Voltage: +9 VDC
Polarity: Center negative
Current draw: 500 mA
Dimensions:
Length: 136 mm
Width: 88 mm
Height: 58 mm
Weight: 500 g
Manuals
Overtuber (English / Deutsch / Español)
Product features, specifications, and appearance are subject to change without notice. While we make every effort to ensure accuracy, product images, descriptions, and specifications may differ slightly from the actual product.
Story
Citadel Electronics was founded by Santiago Alvarez and Tommi Otsavaara, combining decades of experience designing guitar and bass amps, and effects pedals. The company reflects their approach to creating products that emphasize thoughtful design, technical expertise, and practical innovation. Specializing in pedals and accessories, Citadel Electronics focuses on quality, performance, and reliability, producing tools that meet the needs of musicians while reflecting the founders’ standards and vision.
