SKU: 82114017131

Focusrite ISA828 MKII Classic ISA 8-Channel Mic Pre

Sale price$2218.05 Regular price$2464.50
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Description

Focusrite ISA828 MKII Classic ISA 8-Channel Mic PreSharing the simple mic preamp design of the original Focusrite ISA 110 module from the Focusrite Studio Console, 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

Sharing the simple mic preamp design of the original Focusrite ISA 110 module from the Focusrite Studio Console, 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.

Features

  • 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)

Specifications

Mic inputs

  • Gain Range0dB 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 ImpedanceLow = 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 Ratio122dB 'A'-Weighted (typical), medium Z
  • Common-Mode Rejection Ratio997Hz CMRR: -93dB, min gain, medium Z
  • Phantom Power+48V, independently switchable per channel
  • High-Pass Filter75Hz knee frequency, 18dB/Octave, independently switchable per channel
  • PhaseInverts the phases of the selected input
  • Frequency Response (10Hz - 110kHz)10Hz - 110kHz ±1.5dB, min gain, medium Z

Line inputs

  • Gain Range20dB to +10dB in 10dB steps, with an additional +20dB of continuous trim
  • Input ImpedanceLow = 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 Ratio122dB '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 Count2 Channels In
  • Instrument Inputs4 x 1/4" jack inputs
  • Instrument Inputs4 x 1/4" jack inputs

Rear panel connectivity

  • Mic InputsInput: 8 x Female XLR

Line level

  • Channel Count8 In and 8 Out
  • Input8 x 1/4" jack inputs
  • Output1 x DB-25 connectors (AES59)

Inserts

  • Channel Count8 In
  • Input1 x DB-25 connectors (AES59)

Digital card slot

  • Compatible CardISA ADN8

Front panel indicators

  • Control Functions16 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 Functions1 x Pot (Meter Trim)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82114017131

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4.0 ★★★★★
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Vasilios Anastasiadis
Massapequa, US
★★★★★ 5
Love
Size: 11.8 Ounces
Perfect size for making my Fredo cappuccino every morning. Throw it in the dishwasher look brand new everytime
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
M
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Malcolm McLane
Dallas, US
★★★★★ 5
Very nice product. Made of high quality.
Size: 20 Ounces
Product is just what i ordered. Recommend to anyone to purchase from this vendor.
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Reviewed in the United States on November 12, 2025
L
Verified Purchase
Leonardo E. Machado
Waukegan, US
★★★★★ 5
Authentic flavor
Size: 20 Ounces
Exactly as the website says. Very strong and very easily to enjoy every single moment.
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Reviewed in the United States on January 29, 2026
J
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jim Ocello
Massapequa, US
★★★★★ 4
The quality looks quite good considering where it was manufactured.
Size: 11.8 Ounces
Looks great, haven’t used the machine yet. However, it arrived timely and it looks to be Very nice piece of equipment. I look forward the first cup.
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Reviewed in the United States on October 21, 2025
R
Verified Purchase
RJM
Birmingham, US
★★★★★ 5
Great product, thoughtful design, great customer service
Color: Black, Size: 40 oz
I don't write a lot of reviews, but I felt like this product deserved one. This is an excellent cold brew maker. It is very easy to use and has a great 1,200 mL capacity. The plastic construction is more versatile (less fragile) than other brewers made from glass. The filtration system eliminates the sludge that other brew systems leave. The packaging is very thoughtful - a scoop and sponge are included. The scoop is easily overlooked, but it is the perfect size to clean the used grounds out of the filter. The sponge is an unexpectedly useful form factor to help with cleaning. Hopefully the sponges can be ordered separately, since sponges don't last forever. Some minor downsides: Cleaning is moderately easy, but the only component that is recommended for the dishwasher is the pitcher (which is also easiest to clean by hand). All of the other elements are recommended for hand washing, which doesn't take long. The way the filter is configured, the pitcher will work most effectively if stored (at least for part of the brew cycle) on its side. However, there is a vent in the lid that is prone to leaking when the pitcher is stored on its side. Brewing upright can lead to the top grounds not getting exposed to water. Unfortunately, one of the pieces broke during routine use after a couple of months: the pitcher lid is attached with a couple of hinges that snap the lid into place on the pitcher. One of the hinge attachments broke. I contacted customer service and a replacement pitcher arrived four days later. I'd recommend being careful with these hinge attachments as they seem prone to break. At the same time, the customer service is very responsive and suggests that they take support of their products seriously.
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Reviewed in the United States on May 1, 2025

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