{"product_id":"radial-engineering-jdi-mk3-passive-direct-box","title":"Radial Engineering JDI MK3 Passive Direct Box","description":"\u003ch4\u003eDurable for everyday use and high-caliber for crucial usage.\u003c\/h4\u003e\u003cdiv class=\"accordion-item_content-text\"\u003eThe Radial JDI MK3 Passive Direct Box is a Jensen transformer equipped, high-quality passive direct box that has the advantage of providing complete isolation for reduced noise. The exceptionally low phase distortion, almost perfect linear response, and low harmonic distortion make the JDI direct box a superb choice for recording or live performance. The rugged construction allows it to be used in abusive environments without concern. The Radial JDI Mk3 is ideal for acoustic guitars, bass, and keyboards.\u003cbr\u003e\u003cbr\u003eConsidered by many to be one of the finest passive-operation direct boxes available, this Radial DI employs a Jensen isolation transformer for optimum audio performance. 60-cycle ground loop elimination and adept handling of high-output, active instruments and keyboards make the Radial JDI discrete and versatile. Steel I-beam construction, baked enamel finish, and protected faceplate mean Radial JDI is built to survive.\u003cbr\u003e\u003cbr\u003eThe Radial JDI passive direct box employs the Jensen JT-DBE transformer as its main drive engine. The Jensen DBE transformer employs a laminated nickel core with low-permeability and no magnetic memory, therefore eliminating phase distortion caused by the disruption of fundamentals and harmonics.\u003cbr\u003e\u003cbr\u003eThe distinctive book-end design protects the switches against damage from abuse by providing a protective zone on both I\/O panels. A baked enamel finish resists scratching while a no-slip rubberized pad on the bottom stops the JDI direct box from moving around and aids isolation. Inside, the Radial JDI features compound, welded I beam construction that protects the sensitive electronics from outside stress. The internal skeletal frame is locked together with 4 hex screws.\u003cbr\u003e\u003cbr\u003eThe input panel features a 1\/4\" instrument input and traditional thru-put. An innovative merge function allows the thru-put to be converted to a second input to allow stereo to mono summing. This is useful for interface with stereo sources such as keyboards or CD players in live shows where audio channels may be not always be plentiful. The Radial JDI also sports a -15dB pad to interface with higher output levels.\u003cbr\u003e\u003cbr\u003eThe output panel features a balanced 600-ohm XLR connector with pin-2 hot following the AES specification. A polarity reverse switch toggles pin-2 and pin-3 to allow the JDI direct bpx to interface with older non-AES equipment and for creative tinkering. The ground lift switch disconnects the XLR pin-1 ground from the Radial JDI for 100% input-to-output isolation. A second -30dB pad used in tandem with the -15dB input pad allows the JDI to be connected in parallel with a speaker. This, for instance, allows the engineer to tap the sound coming from a guitar amplifier speaker post-distortion thus adding another creative dimension. This unique function incorporates a speaker emulation filter circuit.\u003cbr\u003e\u003cbr\u003eThe JDI input features a high 10kOhm input impedance for minimal loading. This makes the Radial JDI ideal for interface with all instruments. The 600-ohm mic level output allows the JDI box to be used with typical snake systems that incorporate bridging transformers (splitters) without fear of overloading them.\u003cbr\u003e\u003cbr\u003eAs a passive device, the JDI direct box is particularly ideal for use with high output devices such as active or self-powered instruments such as acoustic guitars and basses with built-in battery-powered preamps, and AC-powered equipment such as drum machines, DJ mixers, and keyboards. These devices tend to overload most active direct boxes making them sound thin and edgy. The Radial JDI direct box is capable of exceptionally high signal handling without distortion.\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch4 class=\"accordion-item_content-header\"\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e100% passive design - no phantom power\u003c\/li\u003e\n\u003cli\u003eJensen transformer equipped\u003c\/li\u003e\n\u003cli\u003eDual function inputs w\/2 channel merge\u003c\/li\u003e\n\u003cli\u003ePolarity reverse switch\u003c\/li\u003e\n\u003cli\u003eSpeaker level input circuit\u003c\/li\u003e\n\u003cli\u003eUltra-durable welded steel chassis\u003c\/li\u003e\n\u003cli\u003eDouble sided printed circuit board\u003c\/li\u003e\n\u003cli\u003eProtective channel for switches\u003c\/li\u003e\n\u003cli\u003eGround Lift and Pad switches\u003c\/li\u003e\n\u003cli\u003eNo-slip bottom pad\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp class=\"accordion-item_content-text -bold\"\u003e\nGet a DI you can trust. Pick up the JDI now.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch4 class=\"accordion-item_content-header\"\u003eJDI MK3 Passive Direct Box Specifications:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDynamic range: 135dB\u003c\/li\u003e\n\u003cli\u003eSignal to noise: 119dB\u003c\/li\u003e\n\u003cli\u003eMaximum input level: +19dB\u003c\/li\u003e\n\u003cli\u003eFrequency range: 10Hz40kHz\u003c\/li\u003e\n\u003cli\u003eLinearity 2020kHz: 0.1dB\u003c\/li\u003e\n\u003cli\u003ePhase coherence: 4 degrees at 20Hz\u003c\/li\u003e\n\u003cli\u003e0 degrees at 1kHz\u003c\/li\u003e\n\u003cli\u003eDistortion at 20Hz: 0.006%\u003c\/li\u003e\n\u003cli\u003eCMR rejection 100dB @60Hz\u003c\/li\u003e\n\u003cli\u003eInput impedance: 10kW\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 600W\u003c\/li\u003e\n\u003cli\u003eConstruction: Welded steel\u003c\/li\u003e\n\u003cli\u003eFinish: Baked enamel\u003c\/li\u003e\n\u003cli\u003eInput connectors: Two 1\/4\" phone\u003c\/li\u003e\n\u003cli\u003eOutput connectors: XLR male\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/link.livewiremusicnow.com\/warranties\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cu\u003e\u003cstrong\u003eSee our Warranty Information here\u003c\/strong\u003e\u003c\/u\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Radial Engineering","offers":[{"title":"Default Title","offer_id":44924233875592,"sku":"LWM-01668","price":641.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/2009\/7160\/files\/5149604063.jpg?v=1774431205","url":"https:\/\/livewire-music-2.myshopify.com\/products\/radial-engineering-jdi-mk3-passive-direct-box","provider":"LiveWire Music","version":"1.0","type":"link"}