{"product_id":"earthquaker-devices-zeqd-pre-tube-preamp","title":"Earthquaker Devices ZEQD-Pre Tube Preamp","description":"\u003ch3\u003e\u003cem\u003e\u003cstrong\u003eFrom Earthquaker Devices:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eA collaboration between EarthQuaker Devices and Dr. Z Amplification\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp class=\"\"\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\u003ch4\u003e\u003cstrong\u003ePractice Amp with Headphones\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDirect Amplifier via XLR\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\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 \u003c\/span\u003e\u003cem\u003eCab Bypass\u003c\/em\u003e\u003cspan\u003e 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\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFlexible Routing\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\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\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\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\/span\u003e\u003c\/p\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eGain Factor of 185:\u003c\/strong\u003e Significantly higher than comparable triodes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003e44V RMS Output:\u003c\/strong\u003e Substantial voltage swing for enhanced dynamics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eExtended Frequency Response:\u003c\/strong\u003e Full-spectrum clarity from deep lows to detailed highs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\"\u003eThese specifications translate directly to playing experience:\u003c\/p\u003e\n\u003cul data-rte-list=\"default\"\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eTouch Sensitivity:\u003c\/strong\u003e 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\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eFull-Frequency Clarity:\u003c\/strong\u003e Extended response means harmonic richness without sacrificing definition. Bass notes stay tight, highs remain bell-like and clear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eResponsive EQ:\u003c\/strong\u003e 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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe EF86 brings hi-fi performance to tube preamplification while staying responsive and musical.\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eControls\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cdiv class=\"col sqs-col-6 span-6\"\u003e\n\u003cdiv class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\" data-border-radii='{\"topLeft\":{\"unit\":\"px\",\"value\":0.0},\"topRight\":{\"unit\":\"px\",\"value\":0.0},\"bottomLeft\":{\"unit\":\"px\",\"value\":0.0},\"bottomRight\":{\"unit\":\"px\",\"value\":0.0}}' data-sqsp-block=\"text\" id=\"block-119cc97c004c7c340fe4\"\u003e\n\u003cdiv class=\"sqs-block-content\"\u003e\n\u003cdiv class=\"sqs-html-content\" data-sqsp-text-block-content=\"\"\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eBoost:\u003c\/strong\u003e Use the \u003cem\u003eBoost\u003c\/em\u003e rotary knob for volume control when the Boost is active and the tone controls are bypassed. Boost mode is very loud! Be careful when setting the \u003cem\u003eBoost\u003c\/em\u003e level, especially when using headphones or XLR out.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eBoost Footswitch:\u003c\/strong\u003e This footswitch defeats the tone controls and delivers a full-range boost without altering the frequency response. This switch is only active when the \u003cem\u003eActivate\u003c\/em\u003e footswitch is on.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eHeadphone Output:\u003c\/strong\u003e A TRS (Stereo) ¼” headphone jack is located on the left side. Use the \u003cem\u003eLevel\u003c\/em\u003e control to adjust headphone level when the pedal is active. The headphone output works as a unity gain amplifier with cabinet simulation even when the pedal is bypassed.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eDirect Output:\u003c\/strong\u003e A balanced XLR output is located on the left side of the pedal.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eGround Lift Switch:\u003c\/strong\u003e Press this switch on the left side of the pedal for ground lift on the XLR output.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eCab Sim Bypass Switch:\u003c\/strong\u003e Press this switch on the left side of the pedal to remove the analog cabinet simulation on the XLR output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col sqs-col-6 span-6\"\u003e\n\u003cdiv class=\"sqs-block html-block sqs-block-html\" data-block-type=\"2\" data-border-radii='{\"topLeft\":{\"unit\":\"px\",\"value\":0.0},\"topRight\":{\"unit\":\"px\",\"value\":0.0},\"bottomLeft\":{\"unit\":\"px\",\"value\":0.0},\"bottomRight\":{\"unit\":\"px\",\"value\":0.0}}' data-sqsp-block=\"text\" id=\"block-57ccbb444a41cee80cb2\"\u003e\n\u003cdiv class=\"sqs-block-content\"\u003e\n\u003cdiv class=\"sqs-html-content\" data-sqsp-text-block-content=\"\"\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eLevel:\u003c\/strong\u003e Use the \u003cem\u003eLevel\u003c\/em\u003e rotary knob to adjust the output volume when the tone controls are active.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eBass:\u003c\/strong\u003e Use the \u003cem\u003eBass\u003c\/em\u003e rotary knob to adjust the frequency range from 20 Hz to 400 Hz.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eMiddle:\u003c\/strong\u003e Use the \u003cem\u003eMiddle\u003c\/em\u003e rotary knob to adjust the frequency range from 400 Hz to 2 kHz.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eTreble:\u003c\/strong\u003e Use the \u003cem\u003eTreble\u003c\/em\u003e rotary knob to adjust the frequency range from 2 kHz to 20 kHz.\u003c\/p\u003e\n\u003cp class=\"\"\u003e\u003cstrong\u003eActivate Footswitch:\u003c\/strong\u003e Use this footswitch to activate or bypass the ZEQD-Pre.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Earthquaker Devices","offers":[{"title":"Default Title","offer_id":42837560033328,"sku":"210000091226","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0286\/0200\/7600\/files\/ZEQD-Pre-Analog-Tube-Preamp.jpg?v=1773267921","url":"https:\/\/parkwaymusic.com\/products\/earthquaker-devices-zeqd-pre-tube-preamp","provider":"Parkway Music","version":"1.0","type":"link"}