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Focusrite ISA One Desktop Microphone Preamp , $699.99 - Add to Cart Skip to Product Information

Focusrite ISA One Desktop Microphone Preamp

Portable Preamp Based on Focusrite Forte Technology
Item ID: ISAOne
Focusrite ISA One Desktop Microphone Preamp
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Focusrite ISA One Desktop Microphone Preamp
In Stock!

A Forte Console in a Portable Unit

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The Focusrite ISA One is an excellent way to tap into the legacy of the Forte console in an ultra-portable format. The ISA One is built on the topology of the original ISA 110, including the Lundahl L1538 transformer and Zobel network. Inputs for microphone-, line-, and instrument-level sources cover all of the bases. A variable impedance selector also lets you dial in the response you need. Plus, the ISA One's instrument- and microphone-level inputs run in parallel, so you can blend the direct signals.

Focusrite ISA One Microphone Preamp at a Glance:
  • ISA preamp in a portable metal chassis
  • Selectable impedance, perfect for matching with any microphone
  • Mic, line, and direct instrument inputs offer great tracking options
ISA preamp in a portable metal chassis

Focusrite's ISA preamps are designed to give you the same classic performance and sound as the legendary Forte console, which is often thought of as the pinnacle of analog recording. The ISA One gives you this preamp design in a portable desktop form factor. You no longer have to go through the hassle of un-racking and re-racking your gear when you have to track elsewhere. And forget hiring a team and truck to move a Forte! Now you can just grab your ISA One and go.

Selectable impedance, perfect for matching with any microphone

The microphone input on the ISA One offers the awesome addition of impedance matching. Since so many mics like to see a different impedance at the preamp, one size doesn't necessarily fit all. With the ISA One, you come prepared. You can select between four different levels to match with the mic you're using. Or break the rules and find an "incorrect" sound that works for your needs! No matter the mic you choose, you'll be covered by the ISA One.

Mic, line, and direct instrument inputs offer great tracking options

One of the best features of the ISA One is all of the tracking options you get in such a compact package. You get mic-, line-, and instrument-level inputs - you can actually blend an instrument input and a mic input at the same time. Then you can listen back to your mix through the headphones out, while the sounds you need get on your track.

Focusrite ISA One Microphone Preamp Features:
  • Mic and instrument preamplifier based on the Forte console
  • Portable design for getting great sounds wherever you are
  • Mix and match your mics with the impedance selector
  • Mic, line, and instrument inputs
  • Classic VU meter and ladder LEDs
  • Cue mix stereo inputs
  • Certificate of origin signed by Phil Dudderidge
  • An optional 24-bit/192kHz A-to-D converter is available
  • Free Brainworx bx_console re-creation of Focusrite's ISA 110 and ISA 130 modules
  • 3-year warranty
Get a piece of the Forte legacy with the Focusrite ISA One!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.