Focusrite's new ISA828 eight channel microphone pre-amplifier, providing eight original ISA transformer-based pre amps in a single robust 2U chassis, offering the Focusrite signature sound at its lowest cost per channel to date.
The design for the ISA preamp goes right back to Focusrite's roots and the original Forte console made for AIR studios. Used on countless professional productions it remains one of the best microphone preamp designs of all time. That's why they haven't changed it, apart from the inclusion of the impedance control for easier use with the range of different microphones available today. Some things simply don't go out of fashion, great sound is one of them.
Focusrite’s new ISA828 eight channel microphone pre-amplifier, providing eight original ISA transformer-based pre amps in a single robust 2U chassis, offering the Focusrite signature sound at its lowest cost per channel to date.
The eight ISA-series transformer-based microphone pre amps, with switchable impedance and direct instrument inputs, are complemented by eight line inputs, eight line outputs and an optional eight channel 192kHz ADC. Thanks to its convenient 25 pin D-Type connectors, the ISA828 integrates quickly and seamlessly with ProTools HD, as well as other popular hard disc recorders and mixing desks.
The microphone input stage includes a variable impedance circuit, allowing the user to switch between four carefully selected input impedance settings. The original ISA 110 setting is supplemented by three further impedance settings to either perfectly match the pre amp with any microphone, thus maximizing level, or to use different settings creatively to shape the sound of the microphone being used.
The four front panel instrument inputs also feature high and low impedance options to provide a comprehensive and accessible DI solution. Insert points are also featured on every channel, should the need arise to place extra processing between the pre amp and converter, Vintage design high pass filters are also provided on every channel, ideal for eliminating unwanted low frequencies without affecting the rest of the audio signal.
Alex 'Cores' Hayes swears by the 828 Producer for Professor Green and an has worked with Emeli Sande, Lily Allen, Rizzle Kicks and Example.
Focusrite’s optional eight-channel 192kHz ADC embodies cutting-edge conversion technology, encompassed within Focusrite analogue circuitry, providing eight channels of A/D conversion that boast performance figures beyond any other converter, bar none.
Finally, every channel features a six LED input meter, complete with precise meter trim. Metering has been designed to utilise the same reference points as Digidesign’s HD system and provides clear and accurate input metering independent of the DAW.