{"product_id":"radial-highline-mono-passive-line-isolator","title":"Radial Highline Mono Passive Line Isolator","description":"\u003ch2 class=\"intro-h2\"\u003eFrom Pedal to Performance\u003c\/h2\u003e\n\u003cdiv class=\"intro-p\"\u003e\n\u003cp\u003e\u003cspan data-olk-copy-source=\"MessageBody\"\u003eThe Highline is a passive line isolator designed to connect guitar and amp modelers to a mixer for live touring and recording applications, featuring a premium Jensen transformer for exceptional audio performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eElevate your tone\u003c\/h2\u003e\n\u003cp\u003eThe Highline is a line isolator that is specifically designed to address the needs of instrumentalists who use amp modelers, allowing them to seamlessly connect to a PA or a recording system while maintaining their full signal integrity with no added noise or distortion. The Highline features a premium Jensen 1:1 transformer, which retains the full volume level from the pedalboard to the PA, while also providing galvanic isolation that eliminates ground loop noise for a clean and noise-free signal. The balanced output of the Highline allows for long cable runs to the PA, and it also blocks phantom power so it never reaches the pedalboard. The Highline can also accept stereo inputs and sum them down to mono with the use of the Sum switch.\u003c\/p\u003e\n\u003ch2\u003eDesigned for amp modelers\u003c\/h2\u003e\n\u003cp\u003eGuitarists and bassists who use utilize amp modelers on their pedalboard have a unique set of problems: While amp sims can produce line-level outputs, they often still use 1\/4\" unbalanced connectors that won't support long cable runs without degrading the tone of the instrument, and they are particularly susceptible to noise from ground loops when connected directly to the PA. The Highline addresses these issues by inserting a 1:1 transformer into the signal path, which provides isolation to reduce noise, protects against phantom power, and keeps the signal at line level for direct connection to the PA system.\u003c\/p\u003e\n\u003ch2 class=\"title-1 small bold left\"\u003e\n\u003cspan\u003eHighline\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\" data-slide=\"0\"\u003e\u003cimg width=\"2000\" height=\"1250\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer.png\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer.png 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-300x188.png 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-1024x640.png 1024w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-768x480.png 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-1536x960.png 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eConnect your amp sim to the PA\u003c\/h3\u003e\n\u003cp\u003eThe Highline allows you to send the signal from your guitar amp sim right to the PA while retaining the signal level and sound quality. The transformer inside provides isolation to reduce noise and protects your gear from accidental phantom power activation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app-card\"\u003e\n\u003cdiv class=\"app-img slide-item\" data-slide=\"1\"\u003e\u003cimg width=\"2000\" height=\"1250\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum.png\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum.png 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum-300x188.png 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum-1024x640.png 1024w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum-768x480.png 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2024\/12\/Highline-Mono-Applications-Mixer-sum-1536x960.png 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eSum a stereo amp sim to mono\u003c\/h3\u003e\n\u003cp\u003eThe Highline can also be configured to accept a stereo signal and sum both channels to the XLR output, so you don’t have to reconfigure any of your presets when channel space is limited at the PA. Just engage the sum switch and you can use the Thru jack as a second input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"app-card\"\u003e\n\u003cdiv class=\"app-img slide-item\" data-slide=\"2\"\u003e\u003cimg width=\"2000\" height=\"1250\" src=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru.png\" class=\"img-fluid\" alt=\"\" decoding=\"async\" srcset=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru.png 2000w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru-300x188.png 300w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru-1024x640.png 1024w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru-768x480.png 768w, https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Mono-Applications-Mixer-Thru-1536x960.png 1536w\" sizes=\"(max-width: 2000px) 100vw, 2000px\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"app-desc\"\u003e\n\u003ch3\u003eUse the Thru to monitor locally\u003c\/h3\u003e\n\u003cp\u003eWhen using a mono source device with the Highline, you can take the Thru output to a stage amplifier for local monitoring, while the XLR output feeds the PA system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"svg-underline\"\u003e\u003csvg viewbox=\"0 0 142 10\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"\u003e\u003cg id=\"Canvas\" transform=\"matrix(2 0 0 2 20352 -6122)\"\u003e\u003cuse transform=\"translate(-10175.8 3061.14)\" fill=\"#EB2D2E\"\u003e\u003c\/use\u003e\u003c\/g\u003e\u003cdefs\u003e\u003cpath id=\"path0_fill\" d=\"M 0 2.22805C 0 2.22805 9.58403 -5.61247e-05 34.298 -6.46727e-05C 59.012 -7.32208e-05 69.9438 2.22805 69.9438 2.22805L 69.9438 4.36588L 0 4.36588L 0 2.22805Z\"\u003e\u003c\/path\u003e\u003c\/defs\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"tabcontent\" id=\"tab1\"\u003e\n\u003cdiv class=\"specs-table table-responsive-sm\"\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\u003ePassive, transformer based\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransformer:\u003c\/td\u003e\n\u003ctd\u003eJT-11-YMPC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of channels:\u003c\/td\u003e\n\u003ctd\u003eSingle channel (mono)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response:\u003c\/td\u003e\n\u003ctd\u003e20Hz ~ 20KHz (± 0.05dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal harmonic distortion:\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.03% from 20Hz ~ 20kHz \/ -10dB, 0.0002 @1kHz \/ -10dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Deviation:\u003c\/td\u003e\n\u003ctd\u003e±0.3° from 20Hz ~ 20kHz \/ -10dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise:\u003c\/td\u003e\n\u003ctd\u003e110dB\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\"\u003eGround lift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtras:\u003c\/td\u003e\n\u003ctd\u003eInput Sum, Thru Sum\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 outer shell \u0026amp; 16-gauge chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish:\u003c\/td\u003e\n\u003ctd\u003eDurable powder coat\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\" (108mm x 70mm x 44mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping size (L x W x D):\u003c\/td\u003e\n\u003ctd\u003e6.5\" x 4\" x 3\" (165mm x 102mm x 76mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower:\u003c\/td\u003e\n\u003ctd\u003ePassive, no power required\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\/highline\/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\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Smartsheet-12-2024.pdf\" target=\"_blank\" title=\"Radial Highline Smart Sheet\" rel=\"noopener\"\u003eSmart Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.radialeng.com\/wp-content\/uploads\/2025\/01\/Highline-Manual-WEB-01_2025.pdf\" title=\"Radial Highline User Guide\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan data-olk-copy-source=\"MessageBody\"\u003eUser Guide\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Radial","offers":[{"title":"Default Title","offer_id":47969928642778,"sku":"RADIAL-HIGHLINE","price":184.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/9585\/9277\/files\/Highline-Mono-34R_8866220f-12fb-4518-9fa5-1101e07ef92a.jpg?v=1781025222","url":"https:\/\/www.rocketmusicshop.com\/products\/radial-highline-mono-passive-line-isolator","provider":"RocketMusic","version":"1.0","type":"link"}