The ISA828 eight-channel microphone preamplifier provides eight original ISA transformer-based preamps 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.
The ISA828s new optional eight-channel 192kHz ADC is the first audio ADC to utilise Texas Instruments Burr-Brown Pro Audio Amplifiers and Flagship Analog to Digital Converter PCM4220 chips. This cutting-edge technology is encompassed within Focusrites own custom analogue circuitry to provide eight channels of unparalleled A/D conversion, delivering a dynamic range of 122dB and jitter at < 250 picoseconds.
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 Digidesigns HD system and provides clear and accurate input metering independent of the DAW.
Focusrite ISA828 Specifications:
Mic Input Response
Line Input Response
Instrument Input Response
High Pass Filter
|Subtitle||8 Channel Microphone Preamp|
|Warranty||Default 1 Year|
|Special Order||Special Order|
- Straight up quality Review by Peavey5150
Quality Value Price
It's one thing to have 8 channels of preamps in two rack spaces, it's another to have 'pro' Focusrite gear in those same spaces at a reasonable cost. My Isa 828 gets used mainly for drums (sounds very solid), but with the flexibility i (Posted on 4/30/09)
- A Great Solution for Recording Drums the Right Way Review by D.J.
Quality Value Price
I was in need of 8 solid pres to raise the bar in recording quality sounding drums. Obviously, you need great drums and a great drummer for quality drums, but great mics and a great set of pres sure help. (Posted on 5/21/08)
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