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Keeley Electronics is a prominent American manufacturer of guitar effects pedals, founded in 2001 by Robert Keeley. The company has established a strong reputation in the boutique pedal industry through its focus on precision engineering and high-quality audio performance.
Keeley is renowned for its active and passive pedal designs, including iconic models like the Katana Blues Driver, the Compressor Plus, and the Delay Workstation. Keeley’s pedals are distinguished by their meticulous craftsmanship, innovative circuit designs, and reliability.
The company’s products often incorporate advanced features such as flexible EQ controls, analogue and digital hybrid processing, and extensive tone-shaping capabilities, making them favoured by both professional and amateur guitarists seeking exceptional sound quality and versatile performance.
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A phaser is a type of guitar effects pedal that creates a swirling, sweeping sound by modulating the phase of the audio signal. It works by splitting the incoming signal into two paths, shifting the phase of one path, and then recombining them. This creates peaks and troughs in the frequency spectrum, resulting in a distinctive, “phasing” effect characterized by moving notches in the frequency response.
Here’s how a phaser pedal typically works and some common features:
1. **Rate**: The rate control adjusts the speed at which the phase-shifting effect oscillates. Increasing the rate produces faster modulation, creating a more pronounced swirling effect, while decreasing the rate slows down the modulation for a smoother, more subtle effect.
2. **Depth**: The depth control adjusts the intensity or depth of the phase-shifting effect. Higher depth settings result in more pronounced peaks and troughs in the frequency response, while lower settings produce a more subtle modulation.
3. **Feedback (or Regeneration)**: Some phaser pedals feature a feedback control that determines the amount of modulated signal fed back into the effect. Increasing the feedback creates more pronounced peaks and troughs in the frequency spectrum, resulting in a more intense and resonant phasing effect.
4. **Stages**: Phasers typically have multiple stages (usually four, six, or eight), each of which contributes to the overall phase-shifting effect. More stages generally result in a more complex and textured phasing sound.
5. **Sweep (or Manual)**: The sweep control adjusts the center frequency of the phase-shifting effect. This allows you to focus the phasing effect on specific frequency ranges, altering the tonal character of the modulation.
6. **Resonance (or Feedback)**: Some phaser pedals feature a resonance control that emphasizes the peaks and troughs in the frequency response, creating a more pronounced and resonant effect. This control can add richness and depth to the phasing sound.
Phaser pedals are commonly used in various music genres, including rock, funk, and psychedelic music, to add movement, depth, and texture to guitar tones. They can be used to create swirling, swirling effects on rhythm parts, add dynamics to lead lines, or create atmospheric textures for ambient music. Overall, phaser pedals offer guitarists a versatile tool for shaping their tone and adding expressive modulation effects to their playing.
Pitch pedals alter the frequency of your guitar signal, changing the perceived note or adding harmony. They can shift notes up or down by fixed intervals, create harmonies, or produce dive-bomb and whammy-style effects without a tremolo arm. Pitch shifters and harmonisers are great for thickening solos, simulating multiple guitars, or experimenting with creative, otherworldly sounds that expand your tonal range.
A reverb pedal is like the rich sauce that ties every flavour on the plate into one smooth experience. It adds depth, warmth, and atmosphere — the sonic equivalent of a perfectly reduced glaze that lingers on the tongue. Whether you’re after the subtle ambience of a cosy café (spring or plate reverb) or the grand echoes of a cathedral (hall or shimmer reverb), this is where your tone breathes and expands. A touch of reverb can turn a dry sound into something lush and inviting — but pour on too much, and it’s all you can taste. Used with finesse, it’s the finishing touch that transforms your tone from plain to unforgettable.
A tremolo pedal modulates the volume of your guitar signal up and down in a rhythmic pattern, creating a pulsing or wavering effect that can sound vintage and hypnotic or sharp and choppy depending on the settings. It’s one of the oldest effects in guitar history, famously used on classic amps from the 1950s and ’60s.
Most tremolo pedals let you control the speed, depth, and wave shape, allowing you to go from smooth, subtle swells to intense stuttering tones. It’s a simple but expressive effect that adds movement and character to your sound.
Vibrato refers to a guitar pedal effect that modulates pitch slightly up and down, creating movement and a sense of wobble in the sound. Unlike tremolo, which changes volume, vibrato affects pitch only, producing anything from subtle shimmer to pronounced, warbling textures. It is often used to add character, depth, and vintage-style modulation to guitar tones.
Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.
