36-month financing with the Vintage King Credit Card
Shop the Hottest Prices of the Summer New Deals Drop Daily
$ 1,849 .99
Your Savings: $ 250 .00 Msrp: $ 2,099 .99
or $52/month for 36 months 0% interest for 36 months. 36 equal monthly payments required. Learn more
In Stock
Item is in stock and will ship the next business day. Place your order before 4:00pm ET Mon-Fri and we will ship your items the same day.

To inquire if this item is available in one of our stores, please call 888.653.1184 or chat with us.

SKU

16129

Focusrite ISA 428 MKII Preamp

Four classic preamps with DIs
MFR# AMS-ISA428MK2

Product Description

The Focusrite ISA428 MkII provides four of Focusrite’s prestigious transformer based microphone preamps. It features the same classic circuitry and renowned audio quality found in the original at a new level of affordability. With switchable input impedance, direct instrument inputs and space for an optional eight channels of high quality analogue to digital conversion, the ISA428 MkII creates the perfect front end for the discerning recording professional.

First introduced in 1985, the ISA microphone preamp holds a reputation for outstanding transparency along with subtle warmth contributed by transformer core saturation. The addition of a variable impedance circuit allows ISA users to perfectly match the preamp with any microphone, or to use different settings creatively to shape the sound of the microphone. Unchanged for decades, the ISA microphone preamp topology offers incredible clarity and the signature Focusrite sound that makes it the top choice among many audio professionals today.

The optional class-leading ISA828 eight-channel analogue to digital converter is also compatible with the ISA428 MkII. Along with the four mic preamp inputs, four additional inputs allow you to route other line signals through the converter. High quality Burr-Brown Pro Audio Amplifiers and flagship PCM4220 A-D converter chips seated within Focusrite custom analogue circuitry deliver unparalleled performance. Specifications include a dynamic range of 122dB and jitter performance below 250 picoseconds. The card can be retrofitted at any time. Thanks to its convenient 25-pin D-Type connector, it integrates seamlessly with Pro Tools HD, as well as other digital workstations and mixing desks.

Four Instrument inputs, instantly accessible on the front panel, allow quick and easy connection without the need for a separate DI box. Extra processing can be placed between preamp and conversion via the units dedicated insert points, featured on every channel. Finally, accurate six-segment LED metering is designed to catch even the fastest transients on every channel.

Over 25 years, Focusrite has earned a reputation for bringing superb audio quality and engineering excellence to an array of audio professionals. Whether you’re looking to preserve the sound of your classic microphones, or searching for the perfect front end for your digital studio, the ISA428 MkII brings legendary tools to your studio at an exceptional new price.

Features:

  • Four ISA-series transformer-based pre-amps
  • Over the past three decades, ISA mic preamps have contributed to many of the world’s most significant albums
  • The same cutting-edge analogue to digital converter card used in the ISA828 - four additional ADC inputs allow eight channels of high quality conversion
  • Switchable Impedance
  • Ideal for mic matching or extended microphone creativity - settings include the ‘Vintage ISA110’ setting, providing the original Focusrite signature sound
  • Four front panel instrument inputs
  • Instant access on the front fascia - no separate DI box required
  • Dedicated analogue insert points
  • Switchable insert points are featured on every channel, allowing routing (between pre-amp and output) to additional external processing
  • Variable high pass Focusrite filter
  • Provided on every channel, this is the same filter as featured on the original ISA110 and the legendary Focusrite forte console
  • Accurate LED meters for every channel
  • Clear metering designed to catch even the fastest and most elusive of transients

Product Specifications

ConditionNew
Tube or Solid StateSolid State
Channels4-Channel
Chassis19-inch Rack-mount
Rack Spaces2u
Direct InputYes
Digital I/OYes

Product Reviews

No one has written a review yet. Be the first!

* Required Fields

Share Your Opinion

The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Focusrite ISA 428 MKII Preamp . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.