{"product_id":"focusrite-isa-two-2-channel-microphone-preamplifier","title":"Focusrite ISA Two 2 Channel Microphone Preamplifier","description":"\u003cp data-path-to-node=\"4\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"4\"\u003eFocusrite ISA Two\u003c\/b\u003e\u003cspan\u003e packs two independent channels of legendary, transformer-based console preamplification into a single, 1U rackmount chassis. Built around the Lundahl LL1538 input transformers, this unit delivers up to \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"247\"\u003e\u003cspan class=\"math-inline\" data-math=\"80\\text{ dB}\" data-index-in-node=\"247\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e80\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e of clean, ultra-low-noise analog gain\u003c\/b\u003e\u003cspan\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003e\u003cmeta charset=\"UTF-8\"\u003eEach channel features a four-position impedance selector switch allowing you to tailor how your microphone interacts with the Lundahl transformer.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBeyond microphone and line inputs, the front panel features two high-impedance instrument DI inputs, perfect for tracking direct bass and guitars. Each channel includes a dedicated variable high-pass filter. The continuous control allows you to dial in the exact cutoff frequency between \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"16\\text{ Hz}\" data-index-in-node=\"399\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e16\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"420\\text{ Hz}\" data-index-in-node=\"416\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e420\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e using a smooth \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"18\\text{ dB}\" data-index-in-node=\"445\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e18\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e per octave slope.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"10,0,0\"\u003e\n\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eDual Lundahl LL1538 Transformers:\u003c\/b\u003e The industry-standard input transformer used in the iconic ISA 110 modules, delivering classic warmth and massive headroom.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,1,0\"\u003e\n\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eUp to 80dB of Linear Gain:\u003c\/b\u003e Easily powers low-output ribbon, vintage dynamic, or modern condenser microphones with microscopic noise floor performance.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,2,0\"\u003e\n\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eFront-Panel Instrument DIs:\u003c\/b\u003e High-impedance (\u003cspan class=\"math-inline\" data-math=\"2\\text{ M}\\Omega\" data-index-in-node=\"44\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e2\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e M\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e) TS inputs allow you to track guitars, bass, or keyboards directly without external DI boxes.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,3,0\"\u003e\n\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eDedicated Rear Inserts:\u003c\/b\u003e Rear balanced send-and-return loops let you easily patch outboard hardware compressors, gates, or EQs directly between the preamp and your converter.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,4,0\"\u003e\n\u003cb data-path-to-node=\"10,4,0\" data-index-in-node=\"0\"\u003eVariable High-Pass Filter:\u003c\/b\u003e Fully adjustable from \u003cspan class=\"math-inline\" data-math=\"16\\text{ Hz}\" data-index-in-node=\"49\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e16\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e to \u003cspan class=\"math-inline\" data-math=\"420\\text{ Hz}\" data-index-in-node=\"65\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e420\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e using a high-slope \u003cspan class=\"math-inline\" data-math=\"18\\text{ dB}\" data-index-in-node=\"98\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e18\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\/octave filter to target low-end mud.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,5,0\"\u003e\n\u003cb data-path-to-node=\"10,5,0\" data-index-in-node=\"0\"\u003eMulti-Segment LED Metering:\u003c\/b\u003e Eight-segment LED meters on each channel provide precise, clear peak monitoring of your analogue signal levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"13,0,0\"\u003e\n\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003ePreamplifier Type:\u003c\/b\u003e Solid State with Dual Lundahl LL1538 Input Transformers\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,1,0\"\u003e\n\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eChannel Count:\u003c\/b\u003e 2 Channels (Dual-mono\/Stereo tracking)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,2,0\"\u003e\n\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eMaximum Gain:\u003c\/b\u003e Up to \u003cspan class=\"math-inline\" data-math=\"80\\text{ dB}\" data-index-in-node=\"20\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e80\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (Mic) \/ Up to \u003cspan class=\"math-inline\" data-math=\"28\\text{ dB}\" data-index-in-node=\"47\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e28\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (Instrument DI)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,3,0\"\u003e\n\u003cb data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"\u003eVariable Impedance Settings:\u003c\/b\u003e Low (\u003cspan class=\"math-inline\" data-math=\"600\\ \\Omega\" data-index-in-node=\"34\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e600\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e \u003c\/span\u003e\u003cspan class=\"mord\"\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e), ISA 110 (\u003cspan class=\"math-inline\" data-math=\"1,400\\ \\Omega\" data-index-in-node=\"57\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e1\u003c\/span\u003e\u003cspan class=\"mpunct\"\u003e,\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e400\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e \u003c\/span\u003e\u003cspan class=\"mord\"\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e), Medium (\u003cspan class=\"math-inline\" data-math=\"2,400\\ \\Omega\" data-index-in-node=\"81\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e2\u003c\/span\u003e\u003cspan class=\"mpunct\"\u003e,\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e400\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e \u003c\/span\u003e\u003cspan class=\"mord\"\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e), High (\u003cspan class=\"math-inline\" data-math=\"6,800\\ \\Omega\" data-index-in-node=\"103\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e6\u003c\/span\u003e\u003cspan class=\"mpunct\"\u003e,\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e800\u003c\/span\u003e\u003cspan class=\"mspace\"\u003e \u003c\/span\u003e\u003cspan class=\"mord\"\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,4,0\"\u003e\n\u003cb data-path-to-node=\"13,4,0\" data-index-in-node=\"0\"\u003eHigh-Pass Filter:\u003c\/b\u003e Variable \u003cspan class=\"math-inline\" data-math=\"16\\text{ Hz -- }420\\text{ Hz}\" data-index-in-node=\"27\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e16\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz – \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e420\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e Hz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e (\u003cspan class=\"math-inline\" data-math=\"18\\text{ dB}\" data-index-in-node=\"58\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e18\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e dB\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e per octave slope)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,5,0\"\u003e\n\u003cb data-path-to-node=\"13,5,0\" data-index-in-node=\"0\"\u003eAnalog Inputs (Rear):\u003c\/b\u003e 2x XLR Microphone Inputs, 2x TRS Balanced Line Inputs\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,6,0\"\u003e\n\u003cb data-path-to-node=\"13,6,0\" data-index-in-node=\"0\"\u003eAnalog Inputs (Front):\u003c\/b\u003e 2x TS Unbalanced Instrument DI Inputs\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,7,0\"\u003e\n\u003cb data-path-to-node=\"13,7,0\" data-index-in-node=\"0\"\u003eAnalog Outputs:\u003c\/b\u003e 2x XLR Balanced Line Outputs\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,8,0\"\u003e\n\u003cb data-path-to-node=\"13,8,0\" data-index-in-node=\"0\"\u003eHardware Inserts:\u003c\/b\u003e 2x TRS Sends, 2x TRS Returns (1\/4\" balanced, switchable per channel)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,9,0\"\u003e\n\u003cb data-path-to-node=\"13,9,0\" data-index-in-node=\"0\"\u003ePower Supply:\u003c\/b\u003e Internal universal power supply (\u003cspan class=\"math-inline\" data-math=\"100\\text{--}240\\text{V}\" data-index-in-node=\"47\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e100\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e–\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e240\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eV\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e, \u003cspan class=\"math-inline\" data-math=\"50\\text{--}60\\text{Hz}\" data-index-in-node=\"72\"\u003e\u003cspan class=\"katex\"\u003e\u003cspan class=\"katex-html\" aria-hidden=\"true\"\u003e\u003cspan class=\"base\"\u003e\u003cspan class=\"strut\"\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e50\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003e–\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"mord\"\u003e60\u003c\/span\u003e\u003cspan class=\"mord text\"\u003e\u003cspan class=\"mord\"\u003eHz\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,10,0\"\u003e\n\u003cb data-path-to-node=\"13,10,0\" data-index-in-node=\"0\"\u003eChassis Format:\u003c\/b\u003e 1U Standard 19\" Rackmount\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Focusrite","offers":[{"title":"Default Title","offer_id":56766200152450,"sku":"FF-ISA-TWO","price":624.17,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/1648\/8370\/files\/ISA_Two_Right.jpg?v=1784032783","url":"https:\/\/makenoiseproaudio.com\/products\/focusrite-isa-two-2-channel-microphone-preamplifier","provider":"Make Noise Pro Audio","version":"1.0","type":"link"}