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
Classic mic pre with independent DI
$699.99
ISA Two
Two channels of classic Focusrite mic pres
$999.99
ISA 428 MkII
Classic ISA four-channel mic pre
$2299.99
ISA 828 MkII
Classic ISA eight-channel mic pre
$3499.99
ISA ADN2
Two-channel A-D card for ISA One, including Dante connectivity
$499.99
ISA ADN8
Eight-channel A-D card for ISA 428 MkII and ISA 828 MkII, including Dante connectivity
$699.99
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 One, ISA 428 MkII and ISA 828 MkII microphone preamps.
The ISA 828 is one of the most versatile preamps on the market. I always carry it with me for mobile recording sessions and studio residencies. The ADAT card is a huge benefit and makes the perfect pairing for any producer that wants to expand their setup. — Ricky Damian (Mark Ronson, Sampha, Jorja Smith, Yebba)
The ISA 428 MkII instantly and easily sounds great — clear, punchy, and musical without any effort from me! I’ve been using them on my drums and it's making them sing in a way they never have before. — Steph Marziano (Hayley Williams, Sir Chloe, Vundabar, Cassandra Jenkins)
Everything sounds like the best version of itself and the input stages have the perfect amount of colour. I love using the switchable input impedances with my synths to find the best sound, and there’s a subtle low-mid curve that just sounds great. — James Rand (Sega Bodega, Shygirl, COBRAH, LSDXOXO)
Enjoy 3 years of warranty
All Focusrite products are built to the highest standards, and are designed to provide many years of reliable performance.