{"product_id":"radial-pro48-mono-active-direct-box","title":"Radial Pro48 Mono Active Direct Box","description":"\u003ch2 class=\"intro-h2\"\u003eActive Direct Box\u003c\/h2\u003e\n\u003cdiv class=\"intro-p\"\u003e\n\u003cp\u003eThe Pro48 is an active direct box designed for use on stage or in home recording studios, with exceptional signal handling for use with both active and passive instruments.\u003c\/p\u003e\n\u003ch2\u003eExceptional sonic performance\u003c\/h2\u003e\n\u003cp\u003eThe Pro48's innovative internal switching power supply significantly increases headroom producing less distortion while yielding a smooth, linear response that extends from 20Hz to well above 40kHz. This results in natural, uncolored signal that is as good or better than DI boxes costing several times more. The superior performance makes the Pro48 an ideal candidate for use with battery powered active basses and acoustic guitars that tend to overload other direct boxes.\u003c\/p\u003e\n\u003ch2 class=\"title-1 small bold left\"\u003e\n\u003cspan\u003ePro48\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eApplications\u003c\/h2\u003e\n\u003cdiv class=\"slide-cards-wrapper equal\"\u003e\n\u003cdiv class=\"slide-cards-overflow app-slider\"\u003e\n\u003cdiv class=\"app-card\"\u003e\n\u003cdiv class=\"app-img slide-item\"\u003e\u003cimg width=\"2000\" height=\"1326\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic.jpg\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic.jpg 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-300x199.jpg 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-768x509.jpg 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-1024x679.jpg 1024w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eUsing the Pro48 with acoustic guitar\u003c\/h3\u003e\n\u003cp\u003eThe Pro48 is the perfect interface for acoustic guitar on stage. The high internal rail voltage is able to handle the dynamics of today's active instruments without choking and deliver the smooth, natural sound of the instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app-card\"\u003e\n\u003cdiv class=\"app-img slide-item\"\u003e\u003cimg width=\"2000\" height=\"1326\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-bass.jpg\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-bass.jpg 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-bass-300x199.jpg 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-bass-768x509.jpg 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-bass-1024x679.jpg 1024w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eUsing the Pro48 with bass\u003c\/h3\u003e\n\u003cp\u003eWhether you use an active or passive bass, the Pro48's exceptional signal handling is able to capture the sound of the instrument without distortion or adding artifact. And with proper loading, your bass will sound round and smooth when you record or play live.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app-card\"\u003e\n\u003cdiv class=\"app-img slide-item\"\u003e\u003cimg width=\"2000\" height=\"1326\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic.jpg\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic.jpg 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-300x199.jpg 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-768x509.jpg 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/pro48-acoustic-1024x679.jpg 1024w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eUsing the Pro48 with acoustic instruments\u003c\/h3\u003e\n\u003cp\u003eWith more headroom and less distortion the Radial Pro48 is a great all-round active direct box for instruments of all types. This makes it particularly effective with instruments that can sound 'peaky' or 'edgy' when amplified.\u003c\/p\u003e\n\u003ctable class=\"table feature-product\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecifications\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio circuit type:\u003c\/td\u003e\n\u003ctd\u003eProprietary analog circuit with low-noise op-amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response:\u003c\/td\u003e\n\u003ctd\u003e20Hz ~ 20kHz (± 1.5 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic range:\u003c\/td\u003e\n\u003ctd\u003e99dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal harmonic distortion:\u003c\/td\u003e\n\u003ctd\u003e0.001% @ 0 dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntermodulation Distortion:\u003c\/td\u003e\n\u003ctd\u003e0.002% @ 0 dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Deviation:\u003c\/td\u003e\n\u003ctd\u003e+28º at 20Hz | +1º at 1kHz | -2º at 20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance:\u003c\/td\u003e\n\u003ctd\u003e220kΩ - ¼\" input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance:\u003c\/td\u003e\n\u003ctd\u003e175Ω - XLR output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquivalent Input Noise:\u003c\/td\u003e\n\u003ctd\u003e-86dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Floor:\u003c\/td\u003e\n\u003ctd\u003e-82dB below 0dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input:\u003c\/td\u003e\n\u003ctd\u003e+9dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"heading\"\u003e\n\u003ctd colspan=\"2\"\u003eFeatures\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\"\u003eInput pad, Ground lift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"heading\"\u003e\n\u003ctd colspan=\"3\"\u003eGeneral\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction:\u003c\/td\u003e\n\u003ctd\u003e14-gauge steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize (L x W x D):\u003c\/td\u003e\n\u003ctd\u003e4.25\" x 2.75\" x 1.75\" (108 x 70 x 44mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e1.2 lb (0.54kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower:\u003c\/td\u003e\n\u003ctd\u003e48V phantom - proprietary digital switching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConditions:\u003c\/td\u003e\n\u003ctd\u003eFor use in dry locations only between 5°C and 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty:\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\u003ca href=\"https:\/\/www.radialeng.com\/product\/pro48\/legal.php#Warranty\"\u003eRadial 3-year, transferable\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2018\/04\/smartsheet-pro48-10-22.pdf\" target=\"_blank\" title=\"Radial Pro48 Smart Sheet\" rel=\"noopener\"\u003eSmart Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2026\/02\/Pro48-Owners-Manual-WEB-02-2026.pdf\" target=\"_blank\" title=\"Radial Pro48 User Guide\" rel=\"noopener\"\u003eUser Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Radial","offers":[{"title":"Default Title","offer_id":48078610759898,"sku":"RADIAL-PRO-48","price":134.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/9585\/9277\/files\/pro48-34-right.jpg?v=1781899989","url":"https:\/\/www.rocketmusicshop.com\/products\/radial-pro48-mono-active-direct-box","provider":"RocketMusic","version":"1.0","type":"link"}