{"product_id":"focusrite-isa428-mkii","title":"Focusrite ISA428 mkII","description":"\u003cp\u003e\u003cspan\u003eFour Rupert Neve ISA preamps in a classy 2-space rack unit. The addition of four selectable input impedances makes this one of the finest preamps available for ribbon mics. A JRR top pick!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe ISA428 MkII provides four of Focusrite’s prestigious transformer-based microphone preamps. It features the same classic circuitry and renowned audio quality found in the original at a new level of affordability. With selectable input impedance, direct instrument inputs and an optional eight channels of high-quality analogue to digital conversion, the ISA428 MkII creates the perfect front end for the discerning recording professional.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFirst introduced in 1985, the ISA microphone preamp holds a reputation for outstanding transparency along with subtle warmth contributed by transformer core saturation. The addition of a variable impedance circuit allows ISA users to perfectly match the preamp with any microphone, or to use different settings creatively to shape the sound of the microphone. Unchanged for decades, the ISA microphone preamp topology offers incredible clarity and the signature Focusrite sound that makes it the top choice among many audio professionals today.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe optional class-leading \u003ca href=\"http:\/\/www.focusrite.com\/products\/isa\/isa_8_channel_adc__compatible_with_isa428__isa428_mkii_and_isa828_\"\u003eeight-channel A-D converter option\u003c\/a\u003eused with the ISA828 is also compatible with the ISA428 MkII. Along with the four mic preamp inputs, four additional inputs allow you to route other line signals through the converter. High quality Burr-Brown Pro Audio Amplifiers and flagship PCM4220 A-D converter chips seated within Focusrite custom analogue circuitry deliver unparalleled performance. Specifications include a dynamic range of 122dB and jitter performance below 250 picoseconds. The card can be retrofitted at any time. Thanks to its convenient 25-pin D-Type connector, it integrates seamlessly with most digital workstations, including Pro Tools.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFour instrument inputs, instantly accessible on the front panel, allow quick and easy connection without the need for a separate DI box. Extra processing can be placed between preamp and conversion via the units dedicated insert points, featured on every channel. Finally, accurate six-segment LED metering is designed to catch even the fastest transients on every channel.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOver 25 years, Focusrite has earned a reputation for bringing superb audio quality and engineering excellence to an array of audio professionals. Whether you’re looking to preserve the sound of your classic microphones, or searching for the perfect front end for your digital studio, the ISA428 MkII brings legendary tools to your studio at an exceptional new price.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe ISA microphone preamplifier was first introduced back in 1985. This transformer-based preamplifier formed the first half of the ISA110 mic pre and EQ module on Focusrite's critically acclaimed Forté console. This console, and the later Studio console were hailed by many as the finest sounding consoles ever built.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe ISA microphone preamplifier went on to form the cornerstone of all ISA and RED Focusrite products. The topology has never changed, except for the addition of a variable impedance circuit, allowing ISA users to either perfectly match the preamp with any microphone, thus maximizing level, or to use different settings creatively to shape the sound of the microphone being used. The original ISA110 setting was supplemented by three further impedance settings.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Focusrite preamp is renowned for its transparency, but there's also a subtle warmth that transformer core saturation contributes. This seeming contradiction of warmth plus beautifully open, unrestricted high frequencies, is a classic hallmark of the mid 80's Focusrite designs.\u2028\u2028\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith processors whose bandwidth is strictly limited to the audible (20Hz to 20kHz) bandwidth alone, significant roll-off can still occur, affecting the higher audible frequencies of the signal. Therefore, in order to capture every subtle nuance, exactly as it occurs whilst avoiding any roll-off, the preamp must operate over a far greater bandwidth. The extremely broad frequency response of Focusrite preamps - close to 200kHz at the top end - guarantees accurate phase response across the much narrower range of human hearing, the roll-off point being moved entirely outside of the audible hearing range.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cstrong\u003eFour ISA series transformer-based preamps\u003c\/strong\u003e\u2028\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003eISA series mic preamps have been the producers’ choice on countless hit records over the last two decades.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eEight-channel optional A-D converter\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u2028Four additional A-D converter inputs allow eight channels of high-quality conversion, with a dynamic range of 122dB and jitter performance below 250 picoseconds. More information can be found \u003ca href=\"http:\/\/www.focusrite.com\/products\/isa\/isa_8_channel_adc__compatible_with_isa428__isa428_mkii_and_isa828_\"\u003ehere\u003c\/a\u003e.\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eSelectable impedance\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u2028Ideal for mic matching or extended microphone creativity. Settings include the ‘Vintage ISA110’ setting, providing the original Focusrite signature sound.\u2028\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eFour front panel instrument inputs\u2028\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eInstant access on the front fascia - no separate DI box required.\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eDedicated analogue insert points\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u2028Switchable insert points are featured on every channel, allowing routing (between pre-amp and output) through additional external processing.\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eVariable high pass Focusrite filter\u2028\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003eProvided on every channel, this is the same filter as featured on the original ISA428.\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003e\u003cstrong\u003eAccurate LED meters for every channel\u2028\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"padding: 0px; margin: 0px;\"\u003eClear metering designed to catch even the fastest and most elusive of transients.\u2028\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Focusrite","offers":[{"title":"Default Title","offer_id":54332060631324,"sku":"isa428mkii","price":1499.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/1983\/4140\/files\/focusrite_isa428mkii_ch1.jpg?v=1784602147","url":"https:\/\/jrrshop-3235.myshopify.com\/products\/focusrite-isa428-mkii","provider":"jrrshop","version":"1.0","type":"link"}