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So I have a the iTwo package setup with only what came in the kit (iTwo box, M7 Mic, and HD7 headphones), but have some major issues with the Gain/Volume.

With the mic, if I put the gain on anything lower than the second-to-last notch, even with having the mic practically IN my mouth, vocals are INCREDIBLY low. The problem is anything ABOVE that notch is so sensitive it picks up every noise outside my room, and worst... my breathing (I don't believe I'm a heavy breather either). I primarily use the setup for conference calls (yeah, over kill I know) and screen recordings with talk tracks.

With the volume on the headphone port, if I'm just listening to audio from the computer then I have to turn the knob almost completely down, else its painfully loud. But with playback from conference calls I have to turn it to at least half-way.

I have checked the input/output levels options in the Sounds panel of OS X (10.12.2 if it matters), on 3 different macs ( 1x 3-year old Macbook Pro, 1x brand new 2016 Macbook Pro touchbar, and 1x 12" Macbook), all three going through a USB hub and without. Picture of my box attached.


Any thoughts one what could be wrong/corrected?
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by klypeman on Wed Dec 28, 2016 1:10 pm
By the looks of the pic it seems that you have the gain knob on input 1 way high, one-third is normally the sweetspot on gaining condenser mics with 48v phantom power. That can explain you hearing your breath too. And proximity to the mic.

Windows 10 64bit Home, Studio One 3.5.6, Studio One 4.5.5, Cubase 10.5 Pro , Logic, Pro Tools, MacBook Pro, 24.4.2, 16.0.2, Project, Studiolive III 32, Midas 320, Yamaha MGP32X, Faderport 1+8, Mackie MCU, Softube Console 1, Yamaha SY 55, DSI Mopho, JU-06, ARP Odessey, Impulse 49, NI Maschine Mk.3, Atom, NI Komplete S61, Adam V7’s, KRK VXT 8´s, SE Electronics HP6, CME 61, Nocturn 25, UAD Plugins, TC Touch, UAD Apollo Twin USB/TB Duo, Satellite Quad, TB Octa, UA 6176, Warm Audio 76, JoeMeek MC2, DBX 266XS, TC C300, TC 2290, Yamaha REV 7. Toontrack. :mrgreen:
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by SwitchBack on Wed Dec 28, 2016 1:32 pm
When that mic picks up your breathing and noise from the next room then there's plenty gain. Are you using that mic correctly? Most large-diaphragm mics are side address... :reading:
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by victorbazarov on Wed Jan 04, 2017 3:07 pm

Just to let you know, your situation is not unique. I was struggling with the same trouble on my iOne (my post about it is here). It's not you or your microphone. I got a different interface (from another manufacturer), and no more gain problems.

When I communicated with Presonus tech support about this gain behavior of iOne, they told me it was designed that way. I wish I knew that before buying it...
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by nathanvandermolen on Wed Jun 14, 2017 1:56 pm
Hi, I'm having the exact same issue. When recording guitar directly into the input, the gain knob works as intended and is plenty loud enough at half way. But when using my mics (I have both the M7 and a dynamic), I have to crank the gain nearly to max just to get a strong enough signal, and even then it's too quiet in playback.

So what victor is saying is that I either have to live with it or buy a whole new interface? Is there really no other solution?

Edit: Using iTwo into Studio One 3 Artist on Windows 10 64 bit, if that helps.
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by isuruw on Thu Jun 22, 2017 7:22 am
Exact same issue. I changed 3 microphones and still the problem exists. Very low levels until the knob is turned beyond the last 2 notches and all of a sudden it is easy too much. I tried Audio Technica AT2020, AT2050 And Senheiser MK4. Same with line inputs.

So after reading this thread it seems it's the device's fault?

Intel Core i7 - 16GB RAM - Win 10 64bit - Cubase 8 Artist - Presonus iTwo - AT2020 - AT2050 - Senheiser mk4
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by Aph on Tue Jul 11, 2017 10:12 am
I wrote this in another post in Oct of 2015:

"Yes, of course. I complained a few months ago.
That's how it is.
I assume the taper of the potentiometer they use doesn't really match with the design of their preamp."

I don't believe this is "by Design" or "that's the way we made it". I think the factory put in the wrong taper control and Presonus does not want to admit it.
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by paulvillarreal on Wed Oct 11, 2017 11:56 am
Hi. So I'm having similar issue. Gain knob about 2 notches less than max. I didn't think much of it before. Just went about my business, but now, weirdly, all of a sudden the sensitivity jumped way up! I had my sound dialed in for recording and don't want to mess with the settings mid project if I don't have to.

Anyone know why this sudden change might've happened? I didn't touch anything physically.

Only other variable I can think of is that yesterday I did open up studio One without being connected to iTwo Audiobox, and listened to some bits through laptop speakers.

I've restarted everything a couple times. I'm using windows 10.

Hope someone has some suggestions.

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by amadeumagalhaes on Tue Oct 24, 2017 1:15 pm
Same with ione too, but it only happens with dynamic mics, condenser ones just get hot sooner.
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by brianjones29 on Wed Nov 01, 2017 6:38 am
Same issue here with my iTwo. I even sent the first one back thinking it was defective. All dynamic mics I use, including my Shure headset, don't get a sufficient level until the last two notches and the last notch clips, so there really is only ONE usable notch on this for most mics. I have not tried any condenser mics yet, but this is unacceptable.
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by amadeumagalhaes on Sun Dec 17, 2017 10:06 pm
Sent my iOne back and almost two months later they sent me another...
...exactly same problem!
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by annazappia on Wed Feb 07, 2018 3:06 am
YESSSSS I never realised so many people have the same problem. I wish I knew this. Have you fixed this issue or have u gotten a different audio interface.
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by jonathannegus on Thu Mar 15, 2018 10:45 am
Good morning and thanks for the forum. I'm using audiobox itwo with iPad pro. My problem now is when using guitar with GarageBand amp feature the signal is very noisy... After each note /chord there is a post note "echo" of static / distortion. If I adjust the clipping slider on the garageband track it sounds to... Clipped...


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by ljubomirgorscak on Fri Jul 20, 2018 8:16 am
+1 on this issue. I bought an iOne yesterday to do laptop recording when I travel (or use my car as a vocal booth LOL). I'm using an ATM650 which is like a 57 but the output is strong for a dynamic mic. Gain seems low most of the way and then suddenly jumps at the last few notches. It's too bad because I'm either too low or too high and can't fine-tune a sweet spot. I did some recordings with the gain a bit low and the sound quality was very good, so I'll likely keep it. Price, integration with Studio One and all the driver/firmware processes seem solid. Only complaint is this issue. At least I know I'm not the only one.
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by basmeijer on Mon Nov 05, 2018 9:49 am
Usually with design and/or manufacturing flaws a company will try to arrange a
call-back of the affected products.

I also have an Audiobox iTwo in use which I just used like a few times and realized this problem after a while, as described above in other posts.
There is definitely something wrong with the linearity of the preamp gain and I presume the 1-2 pots need replacement or another modification in the preamp design (like a change of a resistor value), depending on the design with I do not know, is needed.
I am an electronics engineer and designed preamps myself.

I am planning to open, invesigate and modify the unit if nothing will happen from the side of Presonus or the dealer.

Presonus represatative, you are welcome to chime in and instruct how to proceed.
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by benoitpeeters on Thu Dec 06, 2018 12:12 am
Absolutely INCREDIBLE that after alllllll those complain along the years Presonus didn't even take a reasonable position!

I got the same problem too with a iTwo and Rode Nt2-A microphone... but worse, I got a Beyerdynamics DT770 250 ohm Headfone and to use it with the presonus, I had to buy a External headphone amplifier!!!!

What a crap this Audio interface!.... I surely post a youtube video about it shortly and I will put the link here, so, anyone that got that complain will be able to react worldwide.

That was my first Presonus hardware, and It will be the last! Focusrite all along now!

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