{"product_id":"api-3124-mic-line-preamplifier-909-3268-used","title":"API 3124+ Mic\/Line Preamplifier #909.3268 (Used)","description":"\u003cp\u003eThe \u003cstrong\u003eAPI 3124+ Mic\/Line Preamplifier\u003c\/strong\u003e is a discrete, high quality, compact, 4-channel mic\/line preamp, plus D.I. It is equipped with the RE-115 K mic input transformer and the proprietary API output transformer found in the 512c single mic pre and throughout the API product line. The unit has an internal 48-volt phantom power supply, which is switchable for each channel, as well as -20 dB pad switches that affect both the mic and Hi-Z instrument inputs, both located on the front panel.\u003c\/p\u003e  \u003cp\u003eAnother feature of the 3124+ is that it can provide up to 65 dB of gain to an output clip level of +28 dBu. Additionally, the Hi-Z front panel inputs feed directly to the op amps, which allow a low level input such as a guitar or bass to be amplified without a matching transformer or direct box. These Hi-Z inputs can take input levels as high as +20 dBu, making them perfect for keyboards and other high level devices. The mic preamp outputs are on rear panel male XLR connectors.\u003c\/p\u003e    \u003ch3 id=\"toc_1\"\u003eTECHNICAL DETAILS:\u003c\/h3\u003e  \u003cp\u003e\u003cstrong\u003eINPUT IMPEDANCE:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003e1500 ohms Mic, 470 K ohms\u003c\/li\u003e \u003cli\u003eUn-Balanced, HI-Z in Output Impedance: Less than 75 ohms Channel Outputs\u003c\/li\u003e \u003cli\u003eNominal Levels: XLR Channel Output +4 dBu\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eSTEREO OUTPUT LEVEL:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003eUnbalanced: nominal -2\u003c\/li\u003e \u003cli\u003eBalanced: +4\u003c\/li\u003e \u003cli\u003eClipping level: XLR Channel Output better than +28 dBm\u003c\/li\u003e \u003cli\u003eFrequency response: +0, -5, 10 Hz to 20 kHz (-.5 at 10 Hz)\u003c\/li\u003e \u003cli\u003eNoise EIN: -129 Mic, -125 Un-Bal. Actual\u003c\/li\u003e \u003cli\u003eMeasured noise: Better than -91 dBm \/ below Nominal +4\u003c\/li\u003e \u003cli\u003eDistortion: All Outputs at +4 out, .03%, at +22, .09% Max\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eGAIN RANGE:\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \u003cli\u003e150 ohms Input 10 dB min\u003c\/li\u003e \u003cli\u003e65 dB Max (inc. PAD)\u003c\/li\u003e \u003cli\u003eUn-Bal. Input 14 dB min\u003c\/li\u003e \u003cli\u003e50 dB Max\u003c\/li\u003e \u003c\/ul\u003e","brand":"API Audio","offers":[{"title":"Default Title","offer_id":44451407396967,"sku":"511571","price":2649.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/api-3124_-mic-line-preamplifier-909-3268-used_511571_1.jpg?v=1787097121","url":"https:\/\/vintageking.mom\/products\/api-3124-mic-line-preamplifier-909-3268-used","provider":"Vintage King","version":"1.0","type":"link"}