Focusrite ISA828 MkII

Availability: Backorder

SKU
389580
  • Focusrite ISA828 MkII, incorporates eight of Focusrite’s classic mic preamps with Lundahl LL1538 transformers on every input.
  • Switching power supply design allows for efficient and cool operation.
  • Front-panel instrument inputs to first four channels.
  • Line inputs with dedicated input connectors and front-panel select switch.
  • Switchable input impedance including classic ISA 110 setting.
  • A high-pass filter with fixed 75Hz frequency and 18dB/octave roll-off.
  • Switchable insert points when used with A-D card.
  • Per-channel six-segment LED peak-level meters.
  • As with all Focusrite products, you'll also benefit from a three-year warranty.
Our price £2,999.00

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Focusrite ISA828 MkII


The ISA 828 MkII incorporates eight of Focusrite’s classic mic preamps with Lundahl LL1538 transformers on every input. Each channel of the ISA 828 has the option of mic or line inputs, while inputs 1-4 also feature instrument input on the front panel. Each of the mic pres features variable input impedance to provide a range of subtly different sonic options for the wide array of possible microphone choices and includes an 'ISA 110' setting for replicating the impedance of the renowned original Focusrite mic pre.

 

Professional Sound and Gain

Up to 60dB of gain is available on the ISA 828, with a further +20dB of continuously variable trim providing a huge 80dB gain range. The high-pass filter on the ISA 828 features a fixed 75Hz frequency and 18dB / octave roll-off for minimising rumble, stage-borne and other low-frequency sounds. Additionally, the ISA 828 also features per-channel, six-segment LED meters and switchable rear-panel inserts that allow the use of inline processors such as compressors and EQs.

 

Eternally Connected

With dedicated connectors for mic and line-level inputs allowing for all sources to be connected simultaneously, the ISA 828 is ideally suited for permanent rack installations. And with a switching power supply that ensures efficient, cool operation you won’t have to worry about a sacrifice in audio or performance quality, a huge improvement, and reliability standard over its predecessor.

 

3-Year Warranty

With all Focusrite products, you’ll benefit from a 3-year warranty, and award-winning customer support.

 

Key Features:

  • Optional A-D card with up to 192kHz, 24-bit sampling offers high-quality digital audio conversion to Dante, ADAT and AES3
  • 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 first four channels
  • Line inputs with dedicated input connectors and front-panel select switch
  • Switchable input impedance including classic ISA 110 setting
  • A high-pass filter with fixed 75Hz frequency and 18dB/octave roll-off
  • Switchable insert points when used with A-D card
  • Per-channel six-segment LED peak-level meters
  • As with all Focusrite products, you'll also benefit from a three-year warranty
Specification
Specifications

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
  • Input Level: +25dBu, min gain, medium Z
  • Frequency Response: (10Hz - 122kHz): 10Hz - 122kHz ±3dB, unity 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: -65dB, 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

 

Weight and Dimensions:

  • Weight (Without Accessories): 7.05kg / 15.55lbs
  • Weight (With Accessories): 7.48kg / 16.49lbs
  • Height: 88mm / 3.46"
  • Width: 482mm / 18.98"
  • Depth: 325mm / 12.80"

 

Line Inputs:

  • Gain Range: -20dB to +10dB in 10dB steps, with an additional +20dB of continuous trim
  • Input Impedance: Low = 470O, High = 2.4MO
  • Input Level: +18dBu, min gain, low Z
  • Frequency Response (20Hz - 20kHz): 20Hz - 20kHz ±0.1dB, min gain, low Z
  • Frequency Response (10Hz - 110kHz): 10Hz - 110kHz ±1.2dB, min gain, low Z
  • THD + N: -83dB (0.0071%) @ -1dBr, min gain, low Z
  • Signal-To-Noise Ratio: 100dB 'A'-Weighted (typical), min gain, low Z

 

Crosstalk

  • Microphone Talkback: -80dB; 20Hz - 20kHz, min gain, medium Z

 

Line Crosstalk

  • Microphone Talkback: -80dB; 20Hz - 20kHz, min gain, medium Z

 

Instrument Crosstalk

  • Microphone Talkback: -80dB; 20Hz - 20kHz, min gain, medium Z

 

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

 

PSU

  • PSU: 1 x IEC Input

 

Rear Panel Indicators

  • Control Functions: 1 x Pot (Meter Trim)

 

Power

  • PSU: 1 x Internal, 100-240V, 50/60Hz, consumption 35W

 

Heat Performance

  • Operating Temperature: Operates at up to an ambient temperature of 40 degrees Celsius

 

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)