{"product_id":"earthquaker-devices-zeqd-pre-tube-preamp","title":"EarthQuaker Devices ZEQD-Pre Tube Preamp","description":"\u003cp\u003e\u003cstrong\u003eA collaboration between EarthQuaker Devices and Dr. Z Amplification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis all-analog tube preamplifier brings together EarthQuaker Devices’ innovative pedal design and Dr. Z Amplification’s decades of tube amp expertise. With a passive three-band EQ, professional headphone output, balanced XLR output, and onboard analog cabinet simulation, the ZEQD-Pre delivers authentic tube warmth and dynamic response in a complete analog amplifier system that fits right on your pedalboard.\u003c\/p\u003e\n\u003cp\u003ePractice Amp with Headphones\u003cbr\u003eThe headphone output features built-in analog cabinet simulation for a realistic amp feel during quiet practice sessions. Enjoy the full EF86 tube character without disturbing your housemates.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eDirect Amplifier via XLR\u003cbr\u003eRun the balanced XLR output straight into any console or interface and use the ZEQD-Pre as your main amp. The analog cabinet simulation is there when you need it, or flip the Cab Bypass switch to send a pure signal to your preferred IR loader or modeling software. Perfect for direct recording, backline-free gigs, or hybrid rigs with multiple signal paths.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eFlexible Routing\u003cbr\u003eAll outputs work simultaneously, even when the pedal is bypassed. Send your signal to an amp, route a direct feed to front-of-house, and monitor through headphones—all at once. This routing flexibility makes the ZEQD-Pre an invaluable studio tool.\u003c\/p\u003e\n\u003cp\u003eWhy The EF86 Tube?\u003cbr\u003eThe ZEQD-Pre uses the EF86 pentode—the same tube that gives many Dr. Z amplifiers their pristine hi-fi tone and makes them such responsive pedal platforms.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eThe Technical Side\u003cbr\u003eUnlike the common 12AX7 triode (two elements plus cathode), the EF86 pentode has four internal elements plus cathode. This structure yields measurably superior performance:\u003c\/p\u003e\n\u003cp\u003eGain Factor of 185: Significantly higher than comparable triodes\u003c\/p\u003e\n\u003cp\u003e44V RMS Output: Substantial voltage swing for enhanced dynamics\u003c\/p\u003e\n\u003cp\u003eExtended Frequency Response: Full-spectrum clarity from deep lows to detailed highs\u003c\/p\u003e\n\u003cp\u003eWhat This Means for You\u003cbr\u003eThese specifications translate directly to playing experience:\u003c\/p\u003e\n\u003cp\u003eTouch Sensitivity: The EF86 responds to every dynamic nuance in your playing. Play lighter and it cleans up; dig in and it blooms. Natural expression that follows your hands.\u003c\/p\u003e\n\u003cp\u003eFull-Frequency Clarity: Extended response means harmonic richness without sacrificing definition. Bass notes stay tight, highs remain bell-like and clear.\u003c\/p\u003e\n\u003cp\u003eResponsive EQ: Higher voltage and broader bandwidth let the passive Three-Band EQ shape your tone effectively with minimal signal loss. The interactive controls behave like classic tube amp tone stacks—predictable and musical across their entire sweep.\u003c\/p\u003e\n\u003cp\u003eThe EF86 brings hi-fi performance to tube preamplification while staying responsive and musical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECH SPECS\u003c\/strong\u003e\u003cbr\u003eDimensions\u003c\/p\u003e\n\u003cp\u003e5.88 x 3.94 x 2.75 in. (149 x 100 x 70 mm) with knobs\u003c\/p\u003e\n\u003cp\u003eCurrent Draw\u003c\/p\u003e\n\u003cp\u003e500 mA\u003c\/p\u003e\n\u003cp\u003eInput Impedance\u003c\/p\u003e\n\u003cp\u003e10 MΩ\u003c\/p\u003e\n\u003cp\u003eOutput Impedance\u003c\/p\u003e\n\u003cp\u003eVariable\u003c\/p\u003e\n\u003cp\u003eHeadphone Out Impedance\u003c\/p\u003e\n\u003cp\u003e39 Ω\u003c\/p\u003e\n\u003cp\u003eDirect Out Impedance\u003c\/p\u003e\n\u003cp\u003e100 Ω\u003c\/p\u003e\n\u003cp\u003eSwitching\u003c\/p\u003e\n\u003cp\u003eZEQD-Pre uses mechanical true bypass switching.\u003c\/p\u003e\n\u003cp\u003ePower\u003c\/p\u003e\n\u003cp\u003eThis device takes a standard 500 mA (or higher) 9-volt DC power supply with a 2.1 mm negative-center barrel. We always recommend pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies. Pedals will make extra noise if there is ripple or unclean power. Switching-type power supplies, daisy chains, and non-pedal specific power supplies do not filter dirty power as well and let through unwanted noise. DO NOT RUN AT HIGHER VOLTAGES!\u003c\/p\u003e","brand":"EarthQuaker Devices","offers":[{"title":"Default Title","offer_id":44430922350685,"sku":"BM810019915383","price":664.05,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/8179\/7213\/files\/LargeJPEG-ZEQD-Pre.jpg?v=1778346254","url":"https:\/\/gearstage.store\/products\/earthquaker-devices-zeqd-pre-tube-preamp","provider":"GearStage","version":"1.0","type":"link"}