ISA
The classic mic pre
Since 1985, Focusrite has been a name synonymous with no-compromise mic pres following the creation of the ISA 110 for Sir George Martin's Neve console at Air Studios. The legacy of the original ISA 110 lives on today, not only in the ISA range itself, but also in every mic pre we design.
Choose your ISA
The choice of the world's finest producers and engineers
The core modules from the original Focusrite Forte console lives on in our range of ISA products, which have in themselves also become recording classics.
ISA One
$689.99
ISA Two
$1029.99
ISA 428 MkII
$2299.99
ISA 828 MkII
$3449.99
ISA ADN2
$569.99
ISA ADN8
$799.99
The original Focusrite mic preamp
Essentially the same circuit as the original ISA 110, which has been used for 30 years in successive Focusrite designs.
Sought-after sound
Standing for 'Input Signal Amplifier', the ISA range was
born out of the original Focusrite Forte console of the late
80's, and later the Focusrite Studio Console. The core modules
from these consoles live on with Focusrite's current range of
ISA products, which have in themselves also become recording
classics, and the choice of the world's finest producers and
engineers.
Lundahl LL1538 input transformer
At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer, which imparts a special character to the sound that can't be truly emulated in any other way, while the modern twist of variable input impedance allows for a new degree of flexibility.
ADN cards
High-quality analogue-to-digital conversion for the Focusrite ISA 428 MkII and ISA 828 MkII microphone preamps.
“For achieving a complete, finished sound, I recommend the Focusrite ISA One all the time... the sound of that preamp sounds like a record.”
Rob Burrell
“I'm finding that the ISA One is just about all I need on some sessions. It's so versatile and I use it for everything — bass, guitars, vocals.”
Christian Olde Wolbers
Enjoy 3 years of warranty
All Focusrite products are built to the highest standards, and are designed to provide many years of reliable performance.