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Sharing the mic preamp design of the original Focusrite ISA 110 module from the Focusrite Studio Console, the ISA 828 MK2 incorporates eight of Focusrite's classic mic preamps, with Lundahl LL1538 transformers on every input. Each channel has the option of mic or line inputs, while inputs 1-4 also feature instrument inputs on the front panel. Each mic pre has variable input impedance, to provide a range of subtly different sonic options when using microphones, including an 'ISA 110' setting, which replicates the impedance of the original Focusrite mic pre.
Up to 60dB of gain is available, with a further +20dB of continuously variable trim, providing a huge 80dB gain range. The high-pass filter with fixed 75Hz frequency and 18dB/octave roll-off. ISA 828 MK2 features high-pass filters, calibratable per-channel, six-segment LED meters, and switchable rear-panel insert points, which allow the use of inline processors such as compressors or EQs.
Dedicated connectors for mic and line-level inputs allow all sources to be connected simultaneously, making ISA 828 MK2 perfect for permanent installation in a rack. New to the ISA 828 MK2 is an updated power supply that allows for more efficient power consumption, a reduction in heat generation, and extremely reliable operation. The optional ISA ADN8 analogue-to-digital expansion card provides eight Dante, ADAT and AES3 outputs at rates of up to 24-bit/192kHz.
As with all Focusrite Pro products, wherever you happen to be in the world, you can rely on a three-year warranty if any Focusrite Pro hardware needs repairing or replacing due to a manufacturing fault.
Now comes with Brainworx bx_console Focusrite plug-in
This awesome plug-in recreates the analog signal paths of Focusrite’s revered ISA 110 and ISA 130 modules, which were a part of the Focusrite Studio Console. Designed and coded by the DSP geniuses at acclaimed software house Brainworx, the new bx_console Focusrite VST/AU/AAX plug-in for Mac and PC faithfully captures the sound, feel and styling of the original iconic hardware.
If you purchased any Red, RedNet or ISA solution from January 2020 on, you will have the plug-in available in your Focusrite account as long as you’ve registered your product.
Focusrite ISA 828 MkII 8-Channel Mic Preamp/DI
- Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
- Switching power supply design allows for efficient and cool operation
- Front-panel instrument inputs to the first four channels offer two impedance options: High (2.4 MΩ) and Low (470 kΩ)
- Line inputs with dedicated input connectors and front-panel switch
- Switchable input impedance including classic ISA 110 setting
- High-pass filters
- Switchable insert points when used with A-D card
- Calibratable, per-channel six-segment LED peak-level meters
- Optional A-D card with up to 192kHz, 24-bit sampling offers high-quality, precision digital audio conversion to Dante, ADAT and AES3 (sold separately)
Mic inputs
Gain Range
- 0dB to +30dB (30-60 switch disabled) and +30dB to +60dB (30-60 switch enabled) in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
- Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
- +7dBu, min gain, medium Z
Frequency Response (20Hz - 20kHz)
- 20Hz - 20kHz ±0.2dB, min gain, medium Z
THD + N
- -91dB (0.0028%) @ -1dBr, min gain, medium Z
EIN
- -123dBu 'A'-Weighted (typical)
Signal-To-Noise Ratio
- 122dB 'A'-Weighted (typical), medium Z
Common-Mode Rejection Ratio
- 997Hz CMRR: -93dB, min gain, medium Z
Phantom Power
- +48V, independently switchable per channel
High-Pass Filter
- 75Hz knee frequency, 18dB/Octave, independently switchable per channel
Phase
- Inverts the phases of the selected input
Frequency Response (10Hz - 110kHz)
- 10Hz - 110kHz ±1.5dB, min gain, medium Z
Line inputs
Gain Range
- 20dB to +10dB in 10dB steps, with an additional +20dB of continuous trim
Input Impedance
- Low = 600Ω, ISA 110 = 1400Ω, Med (Medium) = 2400Ω, High = 6800Ω
Max. Input Level
- +25dBu, min gain, low Z
Frequency Response (20Hz - 20kHz)
- 20Hz - 20kHz ±0.1dB, min gain, low Z
THD + N
- -91dB (0.0028%) @ -1dBr, min gain, low Z
Signal-To-Noise Ratio
- 122dB 'A'-Weighted (typical), min gain, low Z
Frequency Response (10Hz - 122kHz)
- 10Hz - 122kHz ±3dB, min gain, low Z
Instrument inputs
Gain Range
- +10dB to +40dB with continuous gain using trim pot
Front panel connectivity
Channel Count
- 2 Channels In
Instrument Inputs
- 4 x 1/4" jack inputs
Instrument Inputs
- 4 x 1/4" jack inputs
Rear panel connectivity
Mic Inputs
- Input: 8 x Female XLR
Line level
Channel Count
- 8 In and 8 Out
Input
- 8 x 1/4" jack inputs
Output
- 1 x DB-25 connectors (AES59)
Inserts
Channel Count
- 8 In
Input
- 1 x DB-25 connectors (AES59)
Digital card slot
Compatible Card
- ISA ADN8
Front panel indicators
Control Functions
- 16 x Pots (Gain and Trim). 60 Switches (On/Off Switch, 30-60 Gain, +48V, Phase, HPF, Insert, Z In, Input, Meters Pre A-D, Clock Select and Ext. Word Clock)
Rear panel indicators
Control Functions
- 1 x Pot (Meter Trim)