{"product_id":"heritage-audio-dma-73-preamplificatore-microfonico-a-2-canali","title":"HERITAGE AUDIO DMA 73 2-channel microphone preamplifier","description":"\u003ch2\u003e2-Channel Microphone Preamplifier\u003c\/h2\u003e\n\u003cp\u003eThe HERITAGE AUDIO DMA 73 is a 2-channel 1073-style microphone preamplifier in a 1U rack format.\u003cbr\u003eIt includes several key additional features that will cover all recording needs for engineers and musicians who do not require tracking with EQ.\u003cbr\u003eEmploying only discrete circuits and conventional components, the HERITAGE AUDIO DMA 73 is a 3-stage, all Class A 1073 preamplifier.\u003cbr\u003eStyroflex and tantalum capacitors have been used throughout. No compromises.\u003cbr\u003eA useful discrete Class A hi-pass filter has been added, essential for recording everything except perhaps kick drums and bass.\u003cbr\u003eThe Line mode allows for re-amping of pre-recorded tracks and is perfect for adding Class A color to lifeless recordings.\u003cbr\u003eThe DI circuit is a discrete Class A JFET circuit placed before the MIC transformer, so all the juiciness is there. Since its introduction in 2012, it has become a classic DI for bass.\u003cbr\u003ePower management is handled by an external linear power supply, included in the package.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eMicrophone input impedance: HI, minimum 1200 Ohm, LO, minimum 300 Ohm. Higher gain settings have progressively higher impedances, optimal for low-gain ribbon microphones. The input is Carnhill transformer balanced and floating.\u003c\/li\u003e\n\n\u003cli\u003eLine input impedance: 10K Ohm bridged, Carnhill transformer balanced and floating.\u003c\/li\u003e\n\n\u003cli\u003eDI input impedance: greater than 2 megohms, unbalanced.\u003c\/li\u003e\n\n\u003cli\u003eOutput impedance: less than 75 ohms, Carnhill transformer balanced and floating, to drive a 600 ohm load (factory terminated).\u003c\/li\u003e\n\n\u003cli\u003eMaximum output: greater than +26 dB into 600 ohms.\u003c\/li\u003e\n\n\u003cli\u003eTHD: less than 0.025% at 1 Khz, less than 0.05% at 100Hz.\u003c\/li\u003e\n\n\u003cli\u003eFrequency response: 20 Hz (+0.3 dB) to 20 Khz (-0.2 dB)\u003c\/li\u003e\n\n\u003cli\u003eMaximum gain: slightly greater than 80 dB\u003c\/li\u003e\n\n\u003cli\u003eNoise: less than -100 dBm.\u003c\/li\u003e\n\n\u003cli\u003ePower consumption: 88 mA per rail @ + - 16VDC.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"HERITAGE AUDIO","offers":[{"title":"Default Title","offer_id":53993913745741,"sku":"HADMA73","price":2169.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/0643\/6173\/files\/95305-large_default.jpg?v=1779947749","url":"https:\/\/musicdelivery.net\/en\/products\/heritage-audio-dma-73-preamplificatore-microfonico-a-2-canali","provider":"Music Delivery","version":"1.0","type":"link"}