Catalinbread Epoch Bias
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- This item is covered for 3 years
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Catalinbread
https://www.catalinbread.com
info@catalinbread.com
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A Cult Preamp, Revisited to Go Beyond the Original
Before being a "tone," the Echoplex EP-3 preamp was a secret weapon: a circuit renowned for rounding the attack, enriching the mids, and adding a slight sparkle in the highs without sounding harsh. The Catalinbread Epoch Bias continues this tradition but with a decidedly modern approach: rather than limiting itself to a fixed reproduction, it gives you access to a wider palette of behaviors. Catalinbread compared circuits from different eras and, finding the differences sometimes too subtle, chose to integrate controls designed so you can truly "dial in" the preamp's personality according to your guitar and amp.
Who the Epoch Bias Is For, and Contexts Where It Shines
If you appreciate the feel of an amp that responds better to nuances, the Epoch Bias is an excellent "always-on" pedal. It suits both beginner guitarists seeking a more flattering tone without getting lost in menus, and seasoned musicians wanting a solid, coherent foundation for live or studio use. It fits easily on a pedalboard: at the start of the chain to awaken somewhat tame pickups, after a compressor to sculpt brightness and firmness, or before an overdrive to thicken the grain and improve note sustain.
Style-wise, it feels at home wherever touch matters: blues, rock, pop, indie, country, funk, and even ambient to add body before delays and reverbs. Used as a "sweetener," it delivers immediate musicality; used as a boost, it can push the amp's input (or another saturation) to gain sustain and projection.
Technical specifications
| Effects | Boost, Preamp | Type | sector |
| Technology | Analog | Use | electric guitar |
| Format | Pedal | Color | Black |
| EQ | High-pass filter | ||
Questions frequently asked
What power supply should be used with the Catalinbread Epoch Bias?
This pedal requires a 9 V DC power supply with a center negative plug, consuming 100 mA.
Can it be used as a boost for a solo?
The Boost control adds gain and volume to the circuit. Set to minimum, it approaches the moderate level of an original EP-3. Increasing this setting can drive an amp or overdrive input for more sustain and projection.
What sound does the Epoch Bias preamp provide?
The circuit softens the attack, thickens the midrange, and delivers controlled brightness in the treble. The Preamp control acts primarily as volume until noon, then adds harmonics and coloration related to the load simulation.
What is the purpose of the Bias control?
The Bias control adds gain and amplification, giving a sense of increased density. Slight noise may appear at certain settings, in line with the expressive function of this area of the circuit.
How to connect this pedal to a guitar pedalboard?
The input and output connections each use a 6.35 mm TS jack. The high-pass Filter tightens the low end before the amp or distortion.



