Earthquaker ZEQD-Pre Tube Preamp
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- This item is covered for 3 years
Essential Information About the ZEQD-Pre Pedal
Essential Information About the ZEQD-Pre Pedal
- 100% Analog EF86 Tube Preamp for ultra-dynamic response and authentic tube amp warmth.
- 3-band Passive EQ and Full-Band Boost Channel to switch from a sculpted tone to an open voice with one click.
- Analog Speaker Simulation, Balanced XLR Output, and TRS Headphone Output for studio, stage, and silent practice.
- Designed in collaboration by EarthQuaker Devices and Dr. Z Amplification for an inspiring amp front-end in pedal format.
Manufacturer Information
Earthquaker
https://www.earthquakerdevices.com
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A Collaboration Combining Two Expertise
Born from the meeting of EarthQuaker Devices' expressive engineering and Dr. Z's tube amplification tradition, the ZEQD-Pre places the EF86 pentode at the heart of its circuit. This tube, cherished by the brand's renowned amps, delivers hi-fi clarity, harmonic richness, and a touch responsiveness that immediately recalls a true amp channel. It stands as a key piece for musicians seeking a credible analog alternative to purely digital solutions.Who Is It For, and In What Contexts?
Studio and stage guitarists, minimalist pedalboard users or modeler players, producers, and keyboardists: the ZEQD-Pre is aimed at anyone wanting to thicken and humanize their signal. Placed at the end of the chain, it provides an amp-like foundation for no-backline sets, professional direct recordings, or silent rehearsals with headphones. Its wide dynamic range and broad EQ spectrum serve blues, rock, indie, worship, ambient, and modern pop equally well.Technical specifications
| Effects | Boost, Preamp | Type | sector |
| Technology | Analog | Use | electric guitar |
| Format | Pedal | Color | White |
| EQ | 3 channels | ||
| Bass | 20 Hz to 400 Hz. | Balanced XLR direct output | for an interface, mixer or PA system. |
| Middle | 400 Hz to 2 kHz. | Ground Lift | ground lift on the XLR output. |
| Treble | 2 kHz to 20 kHz. | Tube | 1 x EF86 (pentode). |
| Level | output volume when the EQ is active. | Equalization | passive 3-band (Bass, Middle, Treble). |
| Boost | output volume in Boost mode. | Power supply | 9 V DC (center-negative), 2.1 mm connector. |
| Headphone output | 6.35 mm TRS jack. | Consumption | 500 mA minimum. |
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Questions frequently asked
Can the ZEQD-Pre be connected directly to a mixer or audio interface?
The balanced XLR output allows direct connection to an interface, mixer, or sound system. A Ground Lift switch is provided to lift the ground on this output.
Which tube is used in this Earthquaker Devices preamp?
An EF86 pentode is placed at the heart of the analog circuit. This tube provides a dynamic response and natural compression when pushed.
Can the ZEQD-Pre be used with headphones?
A headphone output on a 6.35 mm TRS jack is included for silent playing. The analog cabinet simulation can be retained for this use.
How does the 3-band EQ work?
The passive tone stack includes Bass, Middle, and Treble. The bass covers 20 Hz to 400 Hz, mids 400 Hz to 2 kHz, and highs 2 kHz to 20 kHz. The Level control adjusts the output volume when the EQ is enabled.
Can the cabinet simulation be bypassed?
The Cab Bypass switch bypasses the analog cabinet simulation, notably to feed an IR loader or modeler.
