The eight-channel ISA 828 MkII features the same transformer-based input stage, complete with the Lundahl LL1538 transformer, as its predecessor. New, however, is compatibility with Dante Audio-over-IP networks, facilitated by the optional ISA ADN8 A-D card. Also new is an updated power supply that allows for more efficient power consumption, a reduction in heat generation, and extremely reliable operation, claims the company. The front panel remains unchanged, with six-step metering on each channel, and front-panel instrument inputs for channels 1-4.
The ISA ADN8 card provides ADAT Optical, AES3 and Dante connectivity at rates up to 24-bit/192kHz. The card offers primary and secondary RJ45 Dante output ports, an AES59-configured DB25 connector for AES3 output, and a pair of TOSLINK connectors for ADAT output. Word clock I/O on BNC connectors allows synchronisation with many external devices. It is compatible with the the ISA 828 MkII and ISA 428 MkII.
Another new introduction is the ISA ADN2, an optional two-channel 24-bit/192kHz A-D card that provides analogue-to-digital conversion for the ISA One mic preamp and DI. The card offers primary and secondary RJ45 Dante output ports, an XLR connector for AES3 output, a TOSLINK connector for ADAT output and RCA connector for S/PDIF output. Synchronisation with many external devices is via word clock I/O on BNC connectors.