FOCUSRITE PRO ISA 428 MkII

4-channel mic preamp.

ISA428MKII

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The Focusrite ISA428 MkII houses four of Focusrite’s classic ISA transformer-based preamps in a 2U rack-mount chassis. The unit features the same circuitry and renowned audio quality as the original, with selectable input impedance, DI inputs, and an optional eight-channel A/D converter. Each channel has dedicated analogue insert points, a variable high-pass filter, Phantom power, and phase reverse.

4 ISA transformer-based microphone preamps

• Switchable impedance

• DI inputs

• Variable high-pass filter

• Phantom Power

• Phase reverse switch

• Optional 8-channel 192kHz A/D board