Focusrite ISA One Analog

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Mic preamp

1 Channel
Mic / Line / Instrument input
Insert
Line out / DI out
Switchable impedance
Headphone output with volume control
VU meter
High pass filter
Switchable phantom power: 48V
Optional AD converter: 192 kHz
Dimensions (W x H x D top to bottom): 220 x 104 x 254 - 290 mm
Weight: 3.9 kg

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3-Year Thomann Warranty

Available since July 2008
Item number 212787
Sales Unit 1 piece(s)
Channels 1
Number of microphone inputs 1
Instrument input Yes
Tubes No
Compressor/Limiter No
Equalizer No
De-Esser No
Phantom power Yes
Phase Reverse Yes
External effect loops Yes
Analogue Outputs XLR, jack
Digitale Outputs Optional
Headphone connection Yes
Level Meter Yes
Design Desktop

529 €

All prices incl. VAT

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in Preamps

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105 Customer ratings

5 90 Customers 4 9 Customers 3 5 Customers 2 0 Customers 1 1 Customer

4.8 / 5

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66 Reviews

fendermanfender 19.09.2019

This is the difference in a project sound and a pro sound... seriously. Mics I have used for 20 years have totally new life. Not because they sound totally different, but because they sound perfectly right, sitting snugly in the mix like my cat on a pile of clean laundry. There is a reason the circuitry here changed the recording field forever. If you're not quite ready to buy this, it should only be because you're saving up for two of them!
I learned a lot after buying this unit. One thing is that besides monitors, a preamp is the most important buy one can make for a home studio. This amp is not one to color your sound with any character. What I found is that it is crystal clear. I was able to change the sounds of my recording by changing mics, adjusting mic positions, etc, to get the sound I wanted. It picks up the full spectrum of sound that is fed into it and leaves you with plenty of room to eq what you don't want. . My recordings were immediatley improved and I can now hear the individual tracks more clearly and more pronounced.. The impedance matching feature is an amazing feature that will get the best sound out of your mic. Spend your money where it counts. This is an amazing preamp and you won't regret buying it

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great clean pre

Kar1l 16.04.2018

I recently decided it was time to upgrade from the built in preamps in my Focusrite Sapphire to a 'real' external preamp. My budget was about 600 EUR. Afer a LOT of online research, I narrowed my options down to 6 preamps, in roughly the same price range. The preamps were:

ART Pro MPA II
Warm Audio TB12 Tone Beast
Black Lion Audio B173 Preamp
FMR Audio RNP 8380
Warm Audio WA73
Focusrite ISA One Analog

As I will be using the preamp mostly for vocals and bass, I tested both those signals.
I plugged my Ibanez 600 in passive mode into my BSS DI, into the preamp. For vocals, I hooked up my SM7B straight into the preamp, into Logic X. The results:

The Focusrite ISA One is the biggest preamp out of the bunch, and built like a tank. Sound wise, it is the most clear pre out of the six. Compared to the built in preamps in the Sapphire, there is definitely more clean gain, with the base character of the tone remaining mostly unchanged. The tone shaping options are more than decent, and there is a lot of I/O. In the end, the ISA One didn't make the cut because it felt too clean, and not big enough of a palpatable difference with the Saphhire.

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彪

简单易用的话放

彪 24.06.2026

When I received it, I felt a shiver. The packaging was in a terrible condition. Our postal service had wrapped it in a bag when they received it. I have to say, Thomann's packaging is really poor - it's empty inside. Fortunately, it's strong enough. I can't understand why such a large box was used to make it move around inside. When I opened the packaging, I saw that the inside was fine. The connection test showed that its sound was as tough as its appearance. The design was simple and easy to use. It made me feel the true strength of my M80. It can choose impedance to display different details. It's not fancy but very standard. It has a bit of an air of elegance. Later, this sound can be processed in many ways. The appearance design is very convenient and independent. It's very suitable for families. I don't have to worry about where to install it. It's a good product and I'm amazed by its history.

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Best entry mic preamp

keshayk 01.04.2022

ISA was my first microphone preamp and I was fully satisfied with it for a long period of time. If you are in search for a well built transformer preamp - it’s your choice. I pared it with my u87 ai and the sound was gorgeous.
Be sure you can’t go wrong with this one, it’s 100% worth it’s price. I put 4 stars and not 5 because i want a little bit more saturation from my amp and I started to prefer tube saturation with time, but it’s only my personal opinion and it doesn't really affect the greatness of that budget preamp.

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