{"product_id":"locomotive-audio-model-86b-2","title":"Locomotive Audio Model 86B-2","description":"\u003cdiv lang=\"en\"\u003e\n\u003cp\u003e\u003cstrong\u003eLocomotive Audio Model 86B-2\u003c\/strong\u003e is a two-channel tube mic\/line preamp in its own 2U rack chassis, a modernized take on the preamp from the mid-1950s Ampex 601 suitcase tape recorder. Each of its two channels is an independent circuit built on an EF86 input tube and a 12AY7 output tube, delivering up to 75dB of gain. It's the two-channel counterpart to the single-channel 86B-1 module from the same Locomotive preamp family.\u003c\/p\u003e\n\u003ch3\u003eTwo full channels, not one preamp with a splitter\u003c\/h3\u003e\n\u003cp\u003eThe 86B-2 succeeds Locomotive's earlier 286A from 2014, adding separate mic and line XLR inputs per channel plus a higher-impedance DI than its predecessor. MuMetal-shielded input transformers and nickel-and-steel output transformers, both wound in-house, finish the signal path ahead of the output XLR.\u003c\/p\u003e\n\u003ch3\u003eControl at every stage of the signal\u003c\/h3\u003e\n\u003cp\u003eEach channel has a switchable mic input impedance (500Ω or 1.8kΩ), a -20dB pad, a 100Hz high-pass filter, 48V phantom power with a polarity switch, and a 3-colour LED output meter (green above -10dBu, orange above +10dBu, red above +18dBu) for a quick level check without looking at the DAW. Two independent channels in one chassis make it easier to track stereo pairs, drum overheads or a vocal duet, without linking two separate units with a stereo-link cable.\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2-channel tube mic\/line\/DI preamp\u003c\/li\u003e\n\u003cli\u003eEF86 (input) and 12AY7 (output) tubes per channel\u003c\/li\u003e\n\u003cli\u003eModernized Ampex 601 design, successor to the 286A\u003c\/li\u003e\n\u003cli\u003eSwitchable mic input impedance: 500Ω \/ 1.8kΩ\u003c\/li\u003e\n\u003cli\u003e-20dB pad and 100Hz high-pass filter\u003c\/li\u003e\n\u003cli\u003e48V phantom power with polarity switch\u003c\/li\u003e\n\u003cli\u003e3-colour LED output meter\u003c\/li\u003e\n\u003cli\u003eHand-built in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: 2-channel tube preamp\u003c\/li\u003e\n\u003cli\u003eTubes: EF86 + 12AY7 per channel\u003c\/li\u003e\n\u003cli\u003eMaximum gain: 75dB\u003c\/li\u003e\n\u003cli\u003eFrequency response: 20Hz – 20kHz\u003c\/li\u003e\n\u003cli\u003eMaximum output level: +24dBu\u003c\/li\u003e\n\u003cli\u003eImpedance: line input 10kΩ, DI 1.6MΩ, output 300Ω\u003c\/li\u003e\n\u003cli\u003eTHD+N: \u0026lt;1%, S\/N: \u0026gt;70dB\u003c\/li\u003e\n\u003cli\u003eDimensions: 482 x 89 x 254mm (2U)\u003c\/li\u003e\n\u003cli\u003ePower: 25W, 115\/230V AC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Locomotive Audio","offers":[{"title":"Default Title","offer_id":54961111466321,"sku":"61014","price":2747.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/Locomotive_Audio_Model_86B-2_1.jpg?v=1789721106","url":"https:\/\/wrdtunes.com\/es\/products\/locomotive-audio-model-86b-2","provider":"Wired Tunes","version":"1.0","type":"link"}