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ISA 428 MkII

ISA 428 MKII Header Image

Articles

Yes, the ISA 428 MkII uses a switched-mode power supply which allows it to automatically adapt to varying supply voltages. The ISA 428 MkII has an IEC power connector and can work at the following...
The 6 LED meter on the front of the unit is calibrated 0dBFS = +22dBu (the maximum level which can be correctly converted by the optional internal A/D converter before overload occurs). The meter...
For articles relating to the ISA 428 MkII Digital Card, please see here .
The analogue circuit board used in the ISA428 MkII is exactly the same board used in the original. Here is a summary of the changes made to the ISA428 MkII: • Analogue ‘moving coil’ peak meters have...
Line Input: 10kΩ Inst Input: >1MΩ Mic Input: Pressing the Z In switch steps through each of the four transformer pre-amp input impedance values, as indicated by the corresponding LEDs. By...