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Focusrite announce a premium four-channel mic preamp ISA428 MkII
2010-08-20


New to Focusrite's renowned ISA range of pro audio hardware is the ISA428 MkII, a premium four-channel mic preamp supporting an optional eight-channel A-D converter. The ISA428 MkII supersedes the existing ISA428 and will be available at a much more affordable price.


The ISA428 MkII features four of Focusrite's classic ISA preamps, originally developed for the legendary Forté console. It supports the same professional eight-channel A-D converter option used with the ISA828. The A-D converter accepts four line inputs in addition to the signals passing through the main channels of the ISA428 MkII, creating eight high-quality digital streams with a superb 122dB dynamic range. Thanks to its convenient 25-pin D-Type connector, the A-D converter option integrates seamlessly with most digital workstations, including Pro Tools HD.


Mirroring the feature set of the original, each ISA428 MkII channel has a variable impedance circuit allowing you to perfectly match the preamp with any microphone, or to use different settings creatively to shape the sound of the microphone. Adjustable high-pass filters as well as phantom power and phase reverse controls are easily accessible on the front panel.


When designing the ISA428 MkII, the Focusrite R&D team were determined to maintain the pristine sound quality of its predecessor, but introduce it at a new level of affordability. To that end, the exact same analogue circuit board can be found in both the original and MkII derivations of the ISA428.

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