{"product_id":"focusrite-isa828-mkii-8-channel-microphone-preamplifier","title":"Focusrite ISA828 MkII 8-Channel Microphone Preamplifier","description":"\u003cp data-path-to-node=\"4\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"4\"\u003eFocusrite ISA828 MkII\u003c\/b\u003e\u003cspan\u003e packs eight independent channels of legendary, transformer-based console preamplification into a single 2U rack chassis. Built around eight historic Lundahl LL1538 input transformers, this high-density front-end provides up to \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"253\"\u003e\u003cspan class=\"math-inline\" data-math=\"80\\text{ dB}\" data-index-in-node=\"253\"\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, low-noise analog gain\u003c\/b\u003e\u003cspan\u003e per channel. Ideal for tracking complete drum sets, full brass sections, or complex live ensembles, it delivers elite Rupert Neve-designed console heritage with maximum rack space efficiency.\u003c\/span\u003e\u003cbr\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 each Lundahl transformer.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eTo ensure cool, reliable operation in packed commercial machine rooms, the ISA828 MkII features an updated, highly efficient switching power supply that generates significantly less heat than its predecessor. For seamless, single-cable digital routing, it features an expansion slot for an optional high-performance A-D card (supporting Dante, AES3, and ADAT), allowing you to stream all eight premium channels directly to your DAW network.\u003c\/span\u003e\u003cspan\u003e\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\"\u003eEight Lundahl LL1538 Input Transformers:\u003c\/b\u003e The classic, industry-standard input transformers that give ISA preamps their signature warm low-end weight and open, airy highs.\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 Delivers abundant headroom and pristine, low-noise gain to easily power vintage dynamics, ribbon mics, and modern condensers alike.\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 Channels 1–4 feature front-panel high-impedance (\u003cspan class=\"math-inline\" data-math=\"2\\text{ M}\\Omega\" data-index-in-node=\"77\"\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 for direct connection of guitars, basses, or synths.\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\"\u003eVariable High-Pass Filters:\u003c\/b\u003e Fully adjustable from \u003cspan class=\"math-inline\" data-math=\"16\\text{ Hz}\" data-index-in-node=\"50\"\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=\"66\"\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 with a steep \u003cspan class=\"math-inline\" data-math=\"18\\text{ dB}\" data-index-in-node=\"93\"\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 slope to target stage rumble and low-end buildup.\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\"\u003eDB-25 Hardware Inserts:\u003c\/b\u003e Dedicated rear-panel DB-25 connections provide balanced insert send\/return loops on every channel to easily patch in outboard dynamics and EQs.\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\"\u003e6-Segment LED Input Meters:\u003c\/b\u003e Fast-acting, clear LED meters on each channel ensure precise, sample-accurate level monitoring before your converters.\u003c\/li\u003e\n\u003cli data-path-to-node=\"10,6,0\"\u003e\n\u003cb data-path-to-node=\"10,6,0\" data-index-in-node=\"0\"\u003eOptional A-D Conversion Card:\u003c\/b\u003e Supports an optional 8-channel A-D card to output high-resolution digital audio directly via ADAT optical, AES3, or Dante networks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\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 Eight 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 8 Channels \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 8x XLR Microphone Inputs, 8x TRS Balanced Line Inputs (via 2x DB-25 connectors)\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 4x TS Unbalanced Instrument DI Inputs (Channels 1–4 only)\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 8x XLR Balanced Line Outputs (via 1x DB-25 connector)\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 8x Sends \/ 8x Returns (Balanced, via 2x DB-25 connectors; 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\"\u003eOptional Digital Card:\u003c\/b\u003e Focusrite ISA 8-Channel A-D Card (Dante, AES3, and ADAT)\u003c\/li\u003e\n\u003cli data-path-to-node=\"13,9,0\"\u003e\n\u003cb data-path-to-node=\"13,10,0\" data-index-in-node=\"0\"\u003eChassis Format:\u003c\/b\u003e 2U Standard 19\" Rackmount\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Focusrite","offers":[{"title":"Default Title","offer_id":56766483005826,"sku":"FF-ISA-828-MK2","price":2482.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/1648\/8370\/files\/ISA_828MKII_Front.jpg?v=1784037928","url":"https:\/\/makenoiseproaudio.com\/products\/focusrite-isa828-mkii-8-channel-microphone-preamplifier","provider":"Make Noise Pro Audio","version":"1.0","type":"link"}