{"product_id":"locomotive-audio-40am-1","title":"Locomotive Audio 40AM-1","description":"\u003ch1 data-section-id=\"f2b77b\" data-start=\"0\" data-end=\"100\"\u003e1940s American-Style Mono Preamp with Octal Tubes – Designed for a Big, Full Sound\u003c\/h1\u003e\n\u003cp data-start=\"102\" data-535=\"\"\u003eThe 40AM preamp is your gateway to achieving that sought-after vintage sound of the 1940s. Inspired by iconic models like the RCA BA-11A and Gates SA-70, this preamplifier combines design elements from both into a single solution. Capable of powerful drive yet extremely versatile, the 40AM allows you to achieve recordings that embody the warmth and character of a bygone era.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d3c3kg\" data-start=\"537\" data-end=\"557\"\u003eThe 40AM Experience\u003c\/h2\u003e\n\u003cp data-start=\"559\" data-end=\"946\"\u003eWhile it can be driven into distortion by saturating the input or utilizing maximum output headroom, the true strength of the 40AM lies in the subtle nuances achievable by adjusting its various sections. Between the choice of input transformer windings and the 5-position \"Response\" selector, you can precisely shape the sonic character of any source.\u003c\/p\u003e\n\u003cp data-start=\"948\" data-end=\"973\"\u003eAdditional features include:\u003c\/p\u003e\n\u003cul data-start=\"975\" data-end=\"1052\"\u003e\n\n\u003cli data-section-id=\"1dqo7b0\" data-start=\"975\" data-end=\"991\"\u003e20 dB Pad\u003c\/li\u003e\n\n\u003cli data-section-id=\"1qvvc7e\" data-start=\"992\" data-end=\"1018\"\u003e85 Hz Low-Cut Filter\u003c\/li\u003e\n\n\u003cli data-section-id=\"nom739\" data-start=\"1019\" data-end=\"1052\"\u003eHigh-Impedance DI Input\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"1054\" data-end=\"1145\"\u003emaking the 40AM an extremely comprehensive unit, capable of sculpting sound in a targeted way.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1euq9ra\" data-start=\"1147\" data-end=\"1163\"\u003eTransformers\u003c\/h2\u003e\n\u003cp data-start=\"1165\" data-end=\"1350\"\u003eMuMetal shielded input transformers and internally wound nickel and steel output transformers. These components are fundamental to the unit's sonic character.\u003c\/p\u003e\n\u003ch2 data-section-id=\"urpe5q\" data-start=\"1352\" data-end=\"1362\"\u003eTubes\u003c\/h2\u003e\n\u003cp data-start=\"1364\" data-end=\"1502\"\u003eTwo 6SJ7 octal tubes (one configured as a pentode and one as a triode) amplify the signal, offering up to 52 dB of maximum gain.\u003c\/p\u003e\n\u003ch2 data-section-id=\"iwfqqh\" data-start=\"1504\" data-end=\"1524\"\u003eResponse Knob\u003c\/h2\u003e\n\u003cp data-start=\"1526\" data-end=\"1629\"\u003eA 5-position rotary selector allows you to shape the overall tonal balance of the signal.\u003c\/p\u003e\n\u003cul data-start=\"1631\" data-end=\"1871\"\u003e\n\n\u003cli data-section-id=\"zpffq8\" data-start=\"1631\" data-end=\"1706\"\u003ePosition 5: emphasizes high and low frequencies, rich and more saturated sound\u003c\/li\u003e\n\n\u003cli data-section-id=\"8kqdv0\" data-start=\"1707\" data-end=\"1800\"\u003ePosition 1: attenuates extremes and highlights mids, with greater harmonic character\u003c\/li\u003e\n\n\u003cli data-section-id=\"8jgzx\" data-start=\"1801\" data-end=\"1871\"\u003ePosition 4: recommended starting point for a more neutral sound\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"12ndgyg\" data-start=\"1873\" data-end=\"1900\"\u003eOutput LED Indicator\u003c\/h2\u003e\n\u003cp data-start=\"1902\" data-end=\"1955\"\u003e3-color LED indicator for signal level:\u003c\/p\u003e\n\u003cp data-start=\"1957\" data-end=\"1979\"\u003eGreen → Yellow → Red\u003c\/p\u003e\n\u003ch2 data-section-id=\"12uembm\" data-start=\"1981\" data-end=\"2002\"\u003eSound Controls\u003c\/h2\u003e\n\u003ch3 data-section-id=\"12rhpil\" data-start=\"2346\" data-end=\"2363\"\u003eResponse Knob\u003c\/h3\u003e\n\u003cp data-start=\"2365\" data-end=\"2440\"\u003eControls the frequency response and harmonic behavior of the signal:\u003c\/p\u003e\n\u003cul data-start=\"2442\" data-end=\"2665\"\u003e\n\n\u003cli data-section-id=\"1sx7ryi\" data-start=\"2442\" data-end=\"2525\"\u003eHigher settings: brighter and fuller sound, less perceived distortion\u003c\/li\u003e\n\n\u003cli data-section-id=\"1jfbokz\" data-start=\"2526\" data-end=\"2616\"\u003eLower settings: attenuated highs, softer lows, and greater emphasis on mids\u003c\/li\u003e\n\n\u003cli data-section-id=\"pqmeeh\" data-start=\"2617\" data-end=\"2665\"\u003eRecommended neutral setting: position 4\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"mx8xjs\" data-start=\"2667\" data-end=\"2681\"\u003eLevel Knob\u003c\/h3\u003e\n\u003cp data-start=\"2683\" data-end=\"2900\"\u003eAllows precise adjustments of the output level. It interacts slightly with the Response control: reducing the level may result in a slight darkening of the sound, which can be compensated for using the Response selector.\u003c\/p\u003e\n\u003ch2 data-section-id=\"l0viof\" data-start=\"2902\" data-end=\"2929\"\u003eProject Inspiration\u003c\/h2\u003e\n\u003cp data-start=\"2931\" data-end=\"3101\"\u003eCombining vintage circuits requires time and attention to achieve the right balance. When well executed, it allows for the integration of strengths from multiple historical designs.\u003c\/p\u003e\n\u003cp data-start=\"3103\" data-end=\"3140\"\u003eThe 40AM is born from the combination of:\u003c\/p\u003e\n\u003cul data-start=\"3142\" data-end=\"3256\"\u003e\n\n\u003cli data-section-id=\"rk1p5x\" data-start=\"3142\" data-end=\"3187\"\u003ePentode input stage of the RCA BA-11A\u003c\/li\u003e\n\n\u003cli data-section-id=\"x4qzkk\" data-start=\"3188\" data-end=\"3256\"\u003eTriode output stage and feedback structure of the Gates SA-70\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-start=\"3258\" data-end=\"3375\"\u003eThe result is a rich, compressed sound that integrates perfectly with the 86B and WT-72 models from the same line.\u003c\/p\u003e\n\u003ch2 data-section-id=\"rjwue0\" data-start=\"3377\" data-end=\"3405\"\u003eUnlock Your Creativity\u003c\/h2\u003e\n\u003cp data-start=\"3407\" data-end=\"3664\"\u003eFinding the right piece of hardware that can give sound that \"something extra\" is often one of the hardest parts of studio work. Having a combination of stimulating tools available is one of the best ways to foster creativity.\u003c\/p\u003e\n\u003cp data-start=\"3666\" data-end=\"3820\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe 40AM is designed precisely for this: to help unleash creative potential and allow you to focus on producing high-level audio.\u003c\/p\u003e","brand":"Locomotive Audio","offers":[{"title":"Default Title","offer_id":54094368964941,"sku":"LOCO40AM-1","price":1189.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/0643\/6173\/files\/Layer_1__68071.jpg?v=1781268017","url":"https:\/\/musicdelivery.net\/en\/products\/locomotive-audio-40am-1","provider":"Music Delivery","version":"1.0","type":"link"}