Focusrite ISA 828 MKII High Grade Mic Preamp

The Focusrite ISA 828 MKII gives you a high-grade mic preamp incorporating 8 classic preamps with Lundahl LL1538 transformers on every input. Each channel also has the option of mic and line inputs. While inputs 1-4 also feature instrument inputs on the front panel. Each mic pre has variable input impedance which provides a range of options for different microphones.

Order in

Free Shipping
Buy it now, 3 months interest free
Available at any of our 6 store locations. Find out how
Order-in Products

Please note: This item is an Order-In item & stock is not kept on hand.

Once your order is placed you will be contacted with an ETA on your item as soon as possible.

Seen a cheaper price elsewhere?
We'll match it!
Price Match
Price Match

Focusrite ISA 828 MKII

The Focusrite ISA 828 MKII gives you a high-grade mic preamp incorporating 8 classic preamps with Lundahl LL1538 transformers on every input. Each channel also has the option of mic and line inputs. While inputs 1-4 also feature instrument inputs on the front panel. Each mic pre has variable input impedance which provides a range of options for different microphones. Including an ISA 110 setting that replicates the impedance of the original Focusrite mic pre.

Up to 60dB gain is also available with a further +20dB of continuously variable trim, providing a huge 80dB gain range. The high-pass filter has a fixed 75Hz frequency as well as an 18dB/octave roll-off for minimising rumble, stand-borne noise, and other low-frequency sounds. What’s more, the ISA 828 MKII also features six-segment LED meters and switchable insert points. Allowing the use of inlince processors such as compressors and EQ’s.

Dedicated connectors for mic and line-level inputs allow you to connect all sources simultaneously. So the ISA 828 MKII is perfect for permanent installation in a rack. While a switching power supply allows for efficient, cool operation without sacrificing sound quality or performance. While increasing reliability over its predecessor.

  • 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
  • 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
  • Brainworx bx_console Focusrite – exclusive plug-in that faithfully captures the sound, feel and styling of the original Focusrite ISA 110 Equaliser and ISA 130 Dynamics Modules.

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: +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

Max. 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

For more information, please visit the manufacturer's website.