ISA One (sold)


Focusrite ISA One Portable Preamp Portable Forte Legacy Model

Out of stock

SKU: ISA One -USED Categories: , Tags: , , Brand:


Focusrite ISA One Desktop Mic Preamp

This comes from a customer that is selling off his studio gear.  Truly brand new condition.  All of the gear that we are listing from the studio is in amazing condition.  Very very low use.  At this price, it’s a great pre to use in the studio or on the go.

Featuring a rugged, portable all-metal enclosure, ISA One combines the classic Focusrite microphone preamp with a flexible, independent DI channel and optional 192kHz precision A-D conversion. At the heart of the ISA range is the microphone preamplifier with its Lundahl input transformer – essentially the same circuit, based on the original ISA 110, that has been used for 30 years in successive Focusrite designs. The input transformer 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.

Whether you’re an artist, engineer or producer, you’ll appreciate the versatility of the ISA One, with its front-panel DI input. The DI includes low/high impedance switching and an amplifier output, and its own feed to the optional A-D converter and separate rear-panel XLR output.


• Classic ISA mic preamp design featuring Lundahl LL1538 input transformer
• Flexible independent DI channel
• Switchable input impedance including classic ISA 110 setting
• Headphone output with volume control
Dedicated insert point
• Optional stereo 192kHz A-D conversion card