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Focusrite ISA428 MkII Four-Channel Mic Preamp B-Stock


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SKU: ISA428mkII-B Category:


Focusrite ISA428 MkII Four-Channel Mic Preamp Supporting Optional Eight-Channel A-D Converter

B-Stock with Full Warranty


The ISA428 MkII supplies four of Focusrite’s prestigious transformer-based mic preamps. It includes the same classic circuitry and renowned audio quality discovered in the original at a latest level of affordability. By having selectable input impedance, direct instrument inputs and an optional eight channels of high-quality analog to digital transformation, the ISA428 MkII creates the perfect front end for the discerning recording professional.



4 instrument 1⁄4” TS jack inputs on front panel
4 microphone XLR inputs on rear panel
4 line 1⁄4” TRS jacks on rear panel
4 insert return 1⁄4” TRS jacks on rear panel
4 ADC XLR inputs on rear panel
4 line XLR outputs on rear panel
4 insert send 1⁄4” TRS jacks on rear panel
IEC power input connector 100Vac – 240Vac
8 output meters, 6 segment
4 30-60 mic gain range selection indicator
4 +48V phantom power indicator
4 Phase indicator
4 Insert In indicator
4 Filter In indicator
4 Input selection indicators (Mic, Line, Inst)
4 Z In microphone input impedance selection indicators (Low, ISA110, Med, High) Clock select indicators (44.1, 48, 88.2, 96, 176.4, 192)
Ext clock indicators (Lock, Word clock, 256X)




Additional information

Additional information

Weight 20.3 lbs


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