{"product_id":"heritage-audio-dma73","title":"Heritage Audio DMA73 Dual-Channel Microphone Preamp","description":"\u003cp\u003eThe \u003cstrong\u003eHeritage Audio DMA73\u003c\/strong\u003e is a true dual 1073 style mic preamp in a single 19-inch rack-mount unit. It includes some added features, covering all the recording needs for engineers and musicians that don´t find the need to track with EQ.\u003c\/p\u003e  \u003cp\u003eEmploying only discrete circuitry and conventional components, the DMA73 is a faithful 3 stage all Xlass A 1073 preamp. Styroflex and tantalum capacitors have been used throughout.  No corners have been cut.\u003c\/p\u003e  \u003cp\u003eA useful all discrete Class A high-pass filter has been added, essential for recording everything with the exception of probably  kick drum and and bass. The Line mode allows for reamping of prerecorded tracks and is perfect for adding some Class A color to lifeless recordings.\u003c\/p\u003e  \u003cp\u003eThe DI circuit is an all discrete Class A JFET circuit ahead of the mic transformer, so all the juice is there. This works as a great DI for bass. Powering is handled by an external linear power supply, which is included in the package.\u003c\/p\u003e  \u003ch3\u003eSpecifications:\u003c\/h3\u003e  \u003cul\u003e \u003cli\u003eMicrophone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum, higher gain positions gradually have greater impedances, optimum for low gain ribbon mics, input is transformer balanced and floating\u003c\/li\u003e \u003cli\u003eLine input impedance: 10 kOhms bridging, transformer balanced and floating\u003c\/li\u003e \u003cli\u003eDI input impedance: Greater than 2 Megohms, unbalanced\u003c\/li\u003e \u003cli\u003eOutput impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 ohms (factory terminated)\u003c\/li\u003e \u003cli\u003eMaximum output: Greater than +26 dBu into 600 ohms\u003c\/li\u003e \u003cli\u003eTHD: Less than 0.025% at 1 kHz, less than 0.05% at 100 Hz\u003c\/li\u003e \u003cli\u003eFrequency response: 20 Hz (+0.3 dB) to 20 kHz (-0.2 dB)\u003c\/li\u003e \u003cli\u003eMaximum gain: Slightly greater than 80 dB\u003c\/li\u003e \u003cli\u003eNoise: Less than -100 dBu\u003c\/li\u003e \u003cli\u003ePower consumption: 88 mA per rail @±16 VDC\u003c\/li\u003e \u003c\/ul\u003e","brand":"Heritage Audio","offers":[{"title":"Default Title","offer_id":44450299478119,"sku":"103916","price":2499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/heritage-audio-dma73_103916_1_31694900-f667-403a-975b-7bfd4b361b8d.jpg?v=1787092511","url":"https:\/\/vintageking.mom\/products\/heritage-audio-dma73","provider":"Vintage King","version":"1.0","type":"link"}