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Focusrite ISA 828 8-Channel Microphone Pre-Amplifier

$2,499.99

More mic inputs for less
You can enjoy the benefits of Focusrite’s classic heritage sound in many ways, but one of the most cost-effective is with the ISA 828, which includes eight Focusrite transformer-based mic preamps in a compact 2U package, along with front panel instrument ins and rear panel line inputs.

The Focusrite ISA mic preamp is based closely on the original design created by Rupert Neve in 1985 for Sir George Martin’s AIR Studios. Virtually unchanged over the years, the ISA mic preamp delivers the warm, full sound that could be just what you’re looking for – and if you use a significant number of microphones at once, the ISA828 is for you.

Additional mic versatility
We just made one significant change to the design, and that was to add three additional input impedances to the original vintage ISA110 setting. Ranging from low to high impedance, the four settings enable you to get the very best sound from a vintage mic – it’s after all what the ISA was originally designed for – but also get a clean, transparent sound from the microphones of today. Or you can enhance a particular feature of your favourite microphones. Indeed, ISA makes the perfect match for any mic. There’s also a vintage design 75Hz / 18dB per octave high pass filter on each channel for detailed control of the bass end.

The ins and the outs
Four front-panel direct instrument inputs are also provided, with high and low impedance settings for extra versatility, and the input side is rounded out by eight TRS rear-panel line inputs. With convenient 25-pin D-type output connectors, ISA 828 is easy to interface with Avid Pro Tools | HD™ and other popular recording systems and consoles. There’s also an optional 8-channel A/D converter available with 122dB dynamic range and sampling up to 192kHz. An insert is available on each channel between the preamp and the A-D. 6-LED meters let you know exactly what is going on, and use the same reference points as Pro Tools | HD.

Key Features:

Eight ISA series transformer-based preamps
In a single robust 2U chassis, offering the classic Focusrite pre at its lowest cost-per-channel to date.

Optional eight-channel 192kHz A-D converter
Embodies cutting edge conversion technology, incorporating Focusrite analogue circuitry to deliver the best A-D performance on the market, bar none.

Interface easily with Pro Tools and other systems
With convenient 25-pin D-type connectors, ISA 828 integrates quickly and seamlessly with Pro Tools | HD, as well as other popular hard disk recorders and mixing systems.

Direct instrument inputs
Each instrument input features high and low impedance options to provide a comprehensive and accessible DI solution.

Inserting available on every channel
Allows external devices to be inserted between the preamp and the A-D converter, using the 25-pin D-type cable.

Switchable impedance
Selectable per channel; choose one of four carefully selected input impedances, including the original ISA110 setting, to suit any microphones.

High pass filter, polarity reverse and phantom power
Each has a dedicated switch, independent on each channel.

Six LED input meter
Complete with precise meter trim - designed to utilise the same reference points as Pro Tools | HD.

Eight Lundahl LL1538 mic input transformers
The original mic transformer used in the original Red modules helps to provide the unique sound and performance of this groundbreaking design.

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