Focusrite ISA428MKII

The Focusrite ISA428 MkII premium four-channel mic preamp features four of Focusrite’s classic ISA preamps, originally developed for the legendary Fort console.Each channel has a variable impedance circuit to let you 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.It supports the same professional eight-channel A-D converter option (ISA8AD) 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. Four ISA series transformer-based preamps Selectable impedance Four front panel instrument inputs Dedicated analog insert points Variable high pass filter on every channel LED meters for every channel Phantom power available on every channel Trim control allows 20dB of extra gain with fine adjustment Phase reverse buttons help to correct phase issues with microphones or cables Optional eight-channel A-D converter (ISA8AD)