{"product_id":"heritage-audio-73jr-ii-mic-pre-di","title":"Heritage Audio 73JR II 500 Series Microphone Preamp and DI","description":"\u003cp\u003eThe \u003cstrong\u003eHeritage Audio 73JR II\u003c\/strong\u003e is an update to the already classic 73JR — a true 73 style mic preamp in a single 500 series slot, with some added features that will satisfy the most demanding of recording engineers. Employing discrete circuitry and conventional components, the 73JR II is a faithful 3-stage all Class A 73 preamp. Styroflex and tantalum capacitors have been used throughout. No corners were cut.\u003c\/p\u003e\r\n\u003cp\u003eThe all-discrete Class A hi-pass filter is sweepable from 20 to 220 Hz — making it easier to make your low end tighter without affecting desired frequencies. The Line mode allows for reamping of prerecorded tracks, and is a perfect solution for adding some color to lifeless recordings. The DI input (which automatically switches to DI mode when inserting a ¼\" TS cable) is an all-discrete Class-A JFET circuit in front of the microphone transformer — giving you all of the color and weight you could ask for.\u003c\/p\u003e\r\n\u003cp\u003eFinally, special care has been taken with power handling, implementing internal +24V slow-turn-on-regulation. This is extremely healthy for your 500 series enclosure’s power supply, and keeps the 73JR II’s power independent from other slots.\u003c\/p\u003e\r\n\u003ch3 id=\"toc_0\"\u003eHeritage quality, through and through\u003c\/h3\u003e\r\n\u003cp\u003eThere are several compromises usually made when adapting a 73 preamp for the 500 Series, but none that you will find in the 73JR II. The 73JR II uses the full 3 gain stage circuit for up to 80 dB of gain with noise of -125 dBu EIN all over the gain positions. The 73JR II uses a true 24volt onboard power supply for identical performance and distortion point.\u003c\/p\u003e\r\n\u003cp\u003eThe 73JR II uses only discrete, through-hole traditional components and hand labor for that great 70s vibe. The output transformer is a custom Carnhill, made for in the St Ives factory. The input transformer is a custom Carnhill, made in Carnhill's Oxford factory — this one has a huge impact on the extra mojo of the unit, and is the same one found in our higher-end 80 Series modules.\u003c\/p\u003e","brand":"Heritage Audio","offers":[{"title":"Default Title","offer_id":44450634727527,"sku":"146774","price":949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/heritage-audio-73jr-ii_146774_1_af14e0a0-12d5-421e-a41f-6de82345749b.jpg?v=1787093848","url":"https:\/\/vintageking.com\/products\/heritage-audio-73jr-ii-mic-pre-di","provider":"Vintage King","version":"1.0","type":"link"}