{"id":17818,"date":"2023-08-28T11:39:17","date_gmt":"2023-08-28T11:39:17","guid":{"rendered":"https:\/\/masteringmansion.com\/pro-audio\/?post_type=product&#038;p=17818"},"modified":"2026-06-19T08:57:39","modified_gmt":"2026-06-19T08:57:39","slug":"model-86b-2","status":"publish","type":"product","link":"https:\/\/masteringmansion.com\/pro-audio\/categorias\/preamplificadores-y-canales\/model-86b-2\/","title":{"rendered":"MODEL 86B-2"},"content":{"rendered":"<p>Explore Sonic Versatility with the 86B-2 Stereo Tube Preamp<\/p>\n<p>Discover a world of sonic possibilities with the 86B-2, an American-style stereo tube preamp meticulously designed for engineers and producers seeking exceptional versatility in their recordings. From luscious vocals to vibrant acoustics, punchy drums to richly saturated tube warmth, this preamplifier offers an expansive sonic palette that will elevate your music to new heights.<\/p>\n<p>Embrace the Harmonic Footprint of Authentic Tube Circuitry<\/p>\n<p>Drawing inspiration from the golden age of 1950s American-style tube circuitry, the 86B-2 leaves a colossal harmonic footprint on your audio, injecting life and character into every note. Say goodbye to sterile, lifeless signals and welcome the vibrant warmth and organic sound that only genuine tubes can provide.<\/p>\n<p>Yearning for Flavor and Color?<\/p>\n<p>Longing for more color options without the hassle of switching between preamps? Perhaps you&#8217;re tight on rack space or just beginning your journey with outboard gear and crave the utmost versatility. Look no further, as the 86B-2 offers precisely the flexibility you seek. Record with mics, then utilize the &#8216;Line&#8217; mode to send audio back through tubes and transformers, infusing your sound with captivating coloration.<\/p>\n<p>Uncompromising Quality: Transformers and Tubes<\/p>\n<p>Prepare for sonic excellence with the 86B-2&#8217;s premium MuMetal shielded inputs and nickel &amp; steel outputs. These exceptional transformers lay the foundation for pristine audio transmission, ensuring remarkable fidelity and clarity. With an EF86 input tube and a 12AY7 output tube, the 86B-2 amplifies your signal with up to 75 dB of maximum gain, providing ample headroom for any recording scenario.<\/p>\n<p>Signal Level at a Glance<\/p>\n<p>Keep a close eye on your levels with the built-in output level LED indicator. The three-color LED (green, yellow, and red) offers instant visual feedback, allowing you to maintain optimal signal levels throughout your recording process.<\/p>\n<p>Effortless &#8216;Out-of-the-Box&#8217; Recording<\/p>\n<p>Experience worry-free recording with dedicated XLR input connectors designed for seamless audio transmission without the risk of phantom power interference. Simply connect and record with confidence, knowing that your signal is protected.<\/p>\n<p>Unlock Sonic Versatility with the 86B-2 Stereo Tube Preamp<\/p>\n<p>Enhance your recordings with the remarkable sonic versatility of the 86B-2 stereo tube preamp. Say goodbye to bland, uninspiring audio and infuse your music with the vibrant warmth and coloration that only genuine tubes can provide. Don&#8217;t miss out on the opportunity to elevate your sound. Order your 86B-2 now and embark on an unforgettable sonic journey.<\/p>\n<p>&nbsp;<\/p>\n<p>Features<\/p>\n<p>Microphone and high impedance\u2028instrument inputs<br \/>\nOne EF86 &amp; one 12AY7 per channel<br \/>\n4-Position Input Switch: 500 \u03a9 &amp; 1.8K \u03a9 Mic, 10k \u03a9 Line, 1.6meg \u03a9<br \/>\nPolarity reverse switch<br \/>\n20 dB pad switch<br \/>\n100 Hz low cut filter switch<br \/>\nDI on for each channel<br \/>\n+48 V phantom power<br \/>\nXLR mic input, line input and line output connections<br \/>\nPremium input and output transformers<br \/>\nWima polypropylene capacitors in signal path<br \/>\nBuilt in USA<br \/>\nHeavy 16 gauge steel chassis<br \/>\n115 V\/230 V AC mains option on rear<br \/>\nBacked by lifetime warranty parts and labor, excluding tubes<br \/>\nTechnical Specs<\/p>\n<p>Microphone input load impedance: 500 \u03a9 or 1.8k \u03a9<br \/>\nLine Input load impedance: 10k \u03a9<br \/>\nOutput impedance: 300 \u03a9<br \/>\n1\/4&#8243; DI impedance: 1.6meg \u03a9<br \/>\nOutput Level LED Color:\u2028Greater than -10 dBu = Green\u2028Greater than\u00a0+10 dBu = Orange\u2028Greater than +18 dBu = Red<br \/>\n75 dB of gain<br \/>\nFrequency response: 20 Hz &#8211; 20 kHz<br \/>\nMaximum 20 Hz &amp; 1 kHz input level for 1% THD: -18 dBu (+2 dBu with Pad)<br \/>\nMaximum output level: +24 dBu<br \/>\nTHD+N: &lt;1%<br \/>\nS\/N ratio: &gt;70 dB<br \/>\nDimensions: 19&#8243; W x 3.5&#8243; H x 10&#8243; D (2u rackspace)<br \/>\nShipping Weight: 18 lb<br \/>\nPower Consumption (120\/240 VAC): 25 watts<\/p>\n","protected":false},"excerpt":{"rendered":"<div id=\"comp-kur6bc23\" class=\"KcpHeO tz5f0K comp-kur6bc23 wixui-rich-text\" data-testid=\"richTextElement\">\n<h1 class=\"font_0 wixui-rich-text__text\"><span class=\"wixui-rich-text__text\">Two Huge Channels of Sweet and Harmonic Tube Preamp Gain<\/span><\/h1>\n<\/div>\n<div id=\"comp-kzctodcc\" class=\"KcpHeO tz5f0K comp-kzctodcc wixui-rich-text\" data-testid=\"richTextElement\">\n<p class=\"font_8 wixui-rich-text__text\"><span class=\"wixui-rich-text__text\"><span class=\"color_11 wixui-rich-text__text\">Warm and Clean to Aggressive and Grungy\u00a0<\/span><\/span><\/p>\n<\/div>\n","protected":false},"featured_media":17819,"template":"","meta":[],"pwb-brand":[826],"product_brand":[],"product_cat":[1029],"product_tag":[828,839,841,842],"class_list":["post-17818","product","type-product","status-publish","has-post-thumbnail","pwb-brand-locomotive_audio","product_cat-preamplificadores-y-canales","product_tag-locomotive-audio","product_tag-model-86b-2","product_tag-preamplificador-valvular","product_tag-stereo","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":826,"name":"LOCOMOTIVE AUDIO","slug":"locomotive_audio"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/17818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/17819"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=17818"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=17818"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=17818"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=17818"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=17818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}