{"product_id":"isa-828-mkii","title":"Focusrite ISA 828 MkII Audio Interface","description":"\u003cp\u003eSharing the simple mic preamp design of the original Focusrite ISA 110 module from the Focusrite Studio Console, ISA 828 MK2 incorporates eight of Focusrite's classic mic preamps, with Lundahl LL1538 transformers on every input. Each channel has the option of mic or line inputs, while inputs 1-4 also feature instrument inputs on the front panel. Each mic pre has variable input impedance, to provide a range of subtly different sonic options when using microphones, including an 'ISA 110' setting, which replicates the impedance of the original Focusrite mic pre\nUp to 60dB of gain is available, with a further +20dB of continuously variable trim, providing a huge 80dB gain range. The high-pass filter with fixed 75Hz frequency and 18dB\/octave roll-off. ISA 828 MK2 features high-pass filters, calibratable per-channel, six-segment LED meters, and switchable rear-panel insert points, which allow the use of inline processors such as compressors or EQs.\nDedicated connectors for mic and line-level inputs allow all sources to be connected simultaneously, making ISA 828 MK2 perfect for permanent installation in a rack. New to the ISA 828 MK2 is an updated power supply that allows for more efficient power consumption, a reduction in heat generation, and extremely reliable operation. The optional ISA ADN8 analogue-to-digital expansion card provides eight Dante, ADAT and AES3 outputs at rates of up to 24-bit\/192kHz.\nKey Features\n\nClassic ISA mic preamp design featuring Lundahl LL1538 input transformer\nSwitching power supply design allows for efficient and cool operation\nFront-panel instrument inputs to the first four channels offer two impedance options: High (2.4 MΩ) and Low (470 kΩ)\nLine inputs with dedicated input connectors and front-panel switch\nSwitchable input impedance including classic ISA 110 setting\nHigh-pass filters\nSwitchable insert points when used with A-D card\nCalibratable, per-channel six-segment LED peak-level meters\nOptional A-D card with up to 192kHz, 24-bit sampling offers high-quality, precision digital audio conversion to Dante, ADAT and AES3 (sold separately)\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain Range\u003c\/td\u003e\n\u003ctd\u003e0dB to +30dB (30-60 switch disabled) and +30dB to +60dB (30-60 switch enabled) in 10dB steps, with an additional +20dB of continuous trim\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003eLow = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Input Level\u003c\/td\u003e\n\u003ctd\u003e+7dBu, min gain, medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response (20Hz - 20kHz)\u003c\/td\u003e\n\u003ctd\u003e20Hz - 20kHz ±0.2dB, min gain, medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD + N\u003c\/td\u003e\n\u003ctd\u003e-91dB (0.0028%) @ -1dBr, min gain, medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEIN\u003c\/td\u003e\n\u003ctd\u003e-123dBu 'A'-Weighted (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-To-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e122dB 'A'-Weighted (typical), medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon-Mode Rejection Ratio\u003c\/td\u003e\n\u003ctd\u003e997Hz CMRR: -93dB, min gain, medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhantom Power\u003c\/td\u003e\n\u003ctd\u003e+48V, independently switchable per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Pass Filter\u003c\/td\u003e\n\u003ctd\u003e75Hz knee frequency, 18dB\/Octave, independently switchable per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase\u003c\/td\u003e\n\u003ctd\u003eInverts the phases of the selected input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response (10Hz - 110kHz)\u003c\/td\u003e\n\u003ctd\u003e10Hz - 110kHz ±1.5dB, min gain, medium Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response (10Hz - 122kHz)\u003c\/td\u003e\n\u003ctd\u003e10Hz - 122kHz ±3dB, min gain, low Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e2 Channels In\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstrument Inputs\u003c\/td\u003e\n\u003ctd\u003e4 x 1\/4\" jack inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMic Inputs\u003c\/td\u003e\n\u003ctd\u003eInput: 8 x Female XLR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e8 x 1\/4\" jack inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003e1 x DB-25 connectors (AES59)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Card\u003c\/td\u003e\n\u003ctd\u003eISA ADN8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Functions\u003c\/td\u003e\n\u003ctd\u003e16 x Pots (Gain and Trim). 60 Switches (On\/Off Switch, 30-60 Gain, +48V, Phase, HPF, Insert, Z In, Input, Meters Pre A-D, Clock Select and Ext. Word Clock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Focusrite","offers":[{"title":"ISA 828 MkII","offer_id":49270053863679,"sku":"MOIF8282","price":0.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/9451\/7503\/files\/00_602b54e9-7587-41c1-9161-6436dcba1ceb.png?v=1790218533","url":"https:\/\/oneprogear.com\/products\/isa-828-mkii","provider":"OneProGear","version":"1.0","type":"link"}