{"product_id":"new-eleven-audio-broadway-balanced-headphone-amplifier-2025-edition-show-demo","title":"Eleven Audio Broadway Balanced Headphone Amplifier 2025 Edition - DEMO UNIT","description":"\u003cp style=\"text-align: left;\"\u003eThis Eleven Audio Broadway 2025 is a show demo unit available direct from the factory in New York, USA.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eIncludes an Eleven Audio Broadway Amplifier, Stock Power Brick, Original Stock Packaging. Stock units do NOT come with a power cable. (add-on bundle available)\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eCondition is excellent. In like new condition aside from show usage.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eAll demo units go through an extensive quality control check including but not limited to a detailed physical inspection and thorough testing.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThe Broadway is built with synergy in mind to stack with the Eleven Audio K DAC. Please inquire for a bundle deal with our \u003ca href=\"https:\/\/theevolutionofsound.com\/collections\/electronics\/products\/eleven-audio-k-dac-r-2r-digital-to-analog-converter-demo-unit\" title=\"Link to  Eleven Audio K DAC R-2R Digital to Analog Converter - DEMO UNIT\"\u003eK DAC Demo Unit\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eProduct is sold as-is and all sales are final with no returns permitted. No warranty is provided, but all Eleven Audio products are still serviced local to the USA for reasonable rates.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eOriginal Eleven Audio Broadway Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003e\u003cem\u003eThe world's first high performance full balanced discrete class A headphone amplifier by \u003cstrong\u003eEleven Audio\u003c\/strong\u003e \u003csup\u003eTM\u003c\/sup\u003e\u003c\/em\u003e combines smooth detailed sound with the noise free black backgrounds. Amazing low level detail, smooth very real mids and vocals, and clear highs only begin to describe how good this amp is!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eInternal user replaceable batteries dramatically reduce AC line noise to negligible levels. This amp will run for hours without AC power, or plug in for continuous play, with the same highly refined sound on either power source. Circuitry is designed to float the batteries on the mains at all times for pure clean sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eAccepts only balanced XLR L\/R channel inputs. Four channels of amplification straight through to a high performance balanced headphone connection with 1.5 full watts of super smooth sounding class A bias amplification. DC coupled means huge low frequency bass resolution, the Broadway sounds way larger than it looks and can drive more power hungry headphones with ease. (For very demanding headphones see \u003ca href=\"https:\/\/abyss-headphones.com\/collections\/abyss-electronics\/products\/eleven-audio-xiaudio-formula-s\" title=\"Eleven Audio Formula S Amp\" style=\"color: rgb(179, 179, 179);\"\u003eEleven Audio Formula S Amplifier\u003c\/a\u003e)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eThis headphone amp simply sings! This \u003cem\u003e\u003cstrong\u003eABYSS Edition\u003c\/strong\u003e\u003c\/em\u003e amplifier was designed using ABYSS Diana series headphones and provides a beautiful sonic mate to complete your high-end headphone system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eSpecifications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eFrequency Response: DC-100 KHz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003ePower: 1.5 watts @ 32 ohms fully balanced class A operation (amplifier biased full on at all times, no edgy crossover distortion typical of other amplifiers)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eSignal to noise ratio 130 dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eRun time: Approx. 6 hours on full battery, indefinitely while connected to the external AC power supply\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eInputs: Stereo balanced 3 pin XLR's only\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eHigh quality volume adjust potentiometer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eHeadphone Outputs: 4 pin balanced XLR and 4.4 mm Pentaconn\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eBatteries: Replaceable Li Ion 18650 x 4 batteries add to power supply filtering\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eAC Charge adaptor: 100-240 VAC, 50-60 Hz. (Unit has built-in battery management, auto-off on low battery, auto charge).  Requires a standard grounded IEC C13 style AC cord (not included)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eDimension: 8.3 in W x 6.1 in D (plus volume knob) (212 mm L x 156 mm D, 190 mm including volume control),  1.9in \/ 48 mm H\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(179, 179, 179);\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003eWeight: Approx. 1150 grams with battery\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003e\u003cstrong\u003eHIGHLY RECOMMENDED for our ABYSS Diana headphones\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003e\u003cstrong\u003eRecommended cables are \u003ca href=\"https:\/\/abyss-headphones.com\/collections\/jps-labs-cables\/products\/jps-labs-ultraconductor-2-xlr-balanced-interconnect-cable\" title=\"JPS Labs Ultraconductor 2 Balanced cables\" style=\"color: rgb(179, 179, 179);\"\u003eJPS Labs  UltraConductor 2\u003c\/a\u003e Balanced XLR\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(179, 179, 179);\"\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/GizUUloIPhg?rel=0\u0026amp;modestbranding=1\u0026amp;autohide=1\u0026amp;showinfo=0\u0026amp;controls=0\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"The Evolution Of Sound®","offers":[{"title":"No Add-On Power Cable","offer_id":45900990972077,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":true},{"title":"Digital AC-X Power Cable (+$499)","offer_id":45900991004845,"sku":null,"price":1998.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2166\/0823\/files\/20260410_123656.jpg?v=1775842869","url":"https:\/\/theevolutionofsound.com\/products\/new-eleven-audio-broadway-balanced-headphone-amplifier-2025-edition-show-demo","provider":"The Evolution Of Sound®","version":"1.0","type":"link"}