{"product_id":"heritage-audio-73jr-ii","title":"Heritage Audio 73JR II","description":"\u003cp\u003e\u003cb\u003eHeritage Audio 73 Jr. II\u003c\/b\u003e - this is a microphone preamp and DI with a built-in -20 dB Pad attenuator, microphone gain up to 80 dB, line signal up to 50 dB, and Highpass Filter.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/fv2FXmzPJ08?si=TroDTXw51waYuxyq\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e73 Jr. II\u003c\/b\u003e is a 500 series microphone preamp based on the legendary 1073 preamp. It is an updated version of the classic 73JR model with some additional features. Using a discrete circuit and traditional components, the 73 Jr. II is a precise three-stage Class A preamp with the ability to amplify up to 80 dB, with a noise level of -125 dBu. The fully discrete class A high-pass filter has been updated and can be set from 20 to 220 Hz, allowing for more expressive low frequencies without affecting the desired frequencies.\u003c\/p\u003e\n\u003cp\u003eLine mode allows you to overdub previously recorded tracks and is great for adding colour to lifeless recordings. The intelligent, switchable D.I. automatically switches from MIC mode to D.I. mode when plugged into the 1\/4” jack, is a fully discrete Class A JFET circuit before the MIC transformer.\u003c\/p\u003e\n\u003cp\u003eParticular attention has been paid to power management, with internal regulation of slow +24 V power-up (approx. 20 seconds to reach full voltage). This allows the 73 Jr. II to be independent of the other slots and makes the power supply of the 500 series housing more stable. Carnhill transformers on the input and output stages add warmth and character to your sounds. The gain level and output level are independent, allowing for rich saturation without limiting your levels.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eHA73jr2 Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 500 series based on the classic 73 module\u003c\/li\u003e\n\u003cli\u003eMicrophone preamp with 20 dB attenuator\u003c\/li\u003e\n\u003cli\u003eGain up to 80 dB for microphone input, 50 dB line preamp\u003c\/li\u003e\n\u003cli\u003eFully discrete Class A circuitry\u003c\/li\u003e\n\u003cli\u003eDI module\u003c\/li\u003e\n\u003cli\u003eDI input circuit is before the input transformer\u003c\/li\u003e\n\u003cli\u003eVariable high-pass filter\u003c\/li\u003e\n\u003cli\u003eSeparate input and output gain controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e73JR 2 Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMicrophone input impedance: HI=1200 Ω minimum, LO=300 Ω minimum. Higher gain positions gradually have greater impedances, perfect for lo gain ribbon mics\u003c\/li\u003e\n\u003cli\u003eInput is transformer balanced and floating\u003c\/li\u003e\n\u003cli\u003eLine input impedance: 10 kΩ bridging, transformer balanced and floating\u003c\/li\u003e\n\u003cli\u003eDI input impedance: Greater than 2 MΩ, unbalanced\u003c\/li\u003e\n\u003cli\u003eOutput impedance: Less than 75 Ω, transformer balanced and floating, to drive a load of 600 Ω (factory terminated)\u003c\/li\u003e\n\u003cli\u003eMaximum output: Greater than +26 dBu into 600 Ω\u003c\/li\u003e\n\u003cli\u003eTHD: Less than 0.025 % at 1 kHz, less than 0.05 % at 100 Hz\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20 Hz (+0.3 dB) to 20 kHz (-0.2 dB)\u003c\/li\u003e\n\u003cli\u003eMaximum gain: Slightly greater than 80 dB\u003c\/li\u003e\n\u003cli\u003eNoise: Less than -125 dBu EIN\u003c\/li\u003e\n\u003cli\u003ePower consumption: 86 mA per rail ±16 V DC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Heritage Audio","offers":[{"title":"Default Title","offer_id":58445324288332,"sku":"42528","price":893.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/9854\/1644\/files\/HeritageAudio73JRII1.jpg?v=1786984651","url":"https:\/\/noiseroom.lt\/products\/heritage-audio-73jr-ii","provider":"Noise Room","version":"1.0","type":"link"}