Behringer Tube Ultragain MIC100
Behringer Tube Ultragain MIC100

Tube Ultragain MIC100, Tube Pre-amp from Behringer in the Ultragain series.

  • Increase or decrease font size
  • Print
  • RSS

All user reviews for the Behringer Tube Ultragain MIC100

  • Like
  • Tweet
  • Submit
Average Score:3.9( 3.9/5 based on 37 reviews )
 14 reviews38 %
 13 reviews35 %
 4 reviews11 %
 2 reviews5 %
 4 reviews11 %
Value For Money : Excellent
View price information

MGR/Billy's review"Behringer Tube Ultragain Mic100 Preamp and DI with Limiter"

Behringer Tube Ultragain MIC100
This is a the table top model, not a pedal or is it a rack unit. It's about the size of a standard DI box or external hard drive.

These run about $50. I picked it up to find out if it really does all it says it does for $50. You can get them just about anywhere that sells Behringer products.

I like the the unit is cheap. It's lightweight. If it broke in 6 months I would not be heart broken nor angry. You get what you pay for.

It will 'warm up' your signal with a little bit of tube warmth. Sure it isn't going to sound AMAZING, but if you're on a budget it's a great unit.

I like that it has an XLR input as well as an instrument input. I can use this for vocals or a guitar. The -20 DB is very helpful.

Power is great. You can power it through Phanton Power, a power supply or by a 9 volt battery.

The Limiter is very limiting. You can't adjust it other than your gain and output volume knobs.

Since the unit is cheaper the construction is not on par with what I think it should be for a pro situation, but hey pros don't need to worry about budgets right?

I mentioned before I do not think the construction is up to snuff. You will most likely set this on top of your amp and sooner or later an instrument cable with get tugged or stepped on and this unit is going to come crashing to the ground.

I don't think it would absorb a fall, but I have not dropped mine either. I was very careful to gingerly use this.

Bottom line is if you need a guitar, bass, vocal or keyboard DI are are on a budget it, this is great. It will get the job done for you without too much noise to boot.

It will warm up a brittle sound to an extent but the Behringer is not a miracle worker.

This review was originally published on

peepsaudio's review

Behringer Tube Ultragain MIC100
This is a little one channel tube preamp made by Behringer. There are no effects other than gain and a built-in limiter. There are a couple other features though. There is a 20dB pad in case you have a very hot signal that is clipping even with the gain all the way down. There is a switch for phantom power for condenser mics. There is a switch for phase reversal if you are doing multi-miking or stereo miking. Then there is a switch to engage the limiter if you want it. The gain is controlled in two stages - a tube gain stage, and then an output stage with another 10db of gain and attenuation down to 0. The connections are XLR mic connectors. It is not rackable, it is a small table-top preamp. It is powered by a 9V wall wart plug.


This preamp is very, very easy to use. The controls are very simple so you pretty much just plug it in, decide which features you want engaged, and fiddle with the gains from there. The manual does explain everything it can do, though there is not much documentation necessary because the device is pretty simple.


This preamp does color your sound a bit, it's not a very transparent pre-amp. It seems to make things sound a little bit crispier and thinner. It sounds pretty good for electric guitars, but not so good for something that is generally more full featured like lead vocals. Overall I was impressed with its sound considering it's from Behringer, but you definitely don't want to use this on anything with a wide frequency spectrum because this will mess with the sound too much.


I used this at a studio about a year ago. I liked what it does to electric guitars, it definitely helped the sound for the track we were recording. It made them more raw and present. I don't like what it does to most other sources, because the coloration usually seems detrimental. I have used a lot of preamps. This one is very cheap, so if you want a starter preamp and you'll be recording a lot of distorted guitars, you may want to consider this one. I wouldn't buy one for my own.

Maltigow's review (This content has been automatically translated from French)" Good cheap solution"

Behringer Tube Ultragain MIC100
Analog preamp tube (12AX7 low voltage, I doubt very much that it brings), supplied with specific power supply.
Mono input jack + XLR outputs for the same.
Switches: limiter, attenuator, phantom and reverse phase.
Seen the light meter for saturation. (Diodes)
Compact, solid, very complete.

I take off a point for the stupid argument "lamp" which seems to me essentially commercial.


Very easy to use.
I found the manual clear, I'm just used to check what he endured as connectivity (both outputs can be used simultaneously, for example) and I quickly found the information I needed.


It remains a cheap preamp that goes well beyond, and I am very happy because I did not need more. The sound is ok, and the connection / setting impeccable, so we do what we want, and so far the machine seemed very reliable.
Point of his view: Clarity ok, S / N ratio ok, does its job, sturdy, not bulky.
My use: Repeats homestudio for microphones (vocals, guitar amp transplanted) or my electro-acoustic.
Another use that I found interesting with my Tonelab:
Guitar -> Tonelab Desktop -> MIC100 -> mixing desk and amp XLR jack return.
It is a versatile tool, correct, and good to have on hand.


I bought used in 2006 or 2007, it has not moved since.
Not really ... Apart compared with the MIC200, but I have not seen the interest instrument selector on this unit ... The only preamp enough.
I would do this choice without hesitation, as adapted to my needs.

berl's review (This content has been automatically translated from French)" Simple and practical. Do not expect miracles."

Behringer Tube Ultragain MIC100
Preamp / DI "lamp".
Size of a DI.
Input and output XLR and Jack.
Phantom power (48V??), PAD, phase inversion and a "limiter" (gadget).
Input gain, output volume, VU mêtre.
Mechanically strong.


Use could not be more simple. Very correct ergonomics.
The manual seems unnecessary given the simplicity of the object.


To be clear, we have a little cheap preamp to get a microphone to line level, to go on an online PC input or simply to feed a microphone that requires phantom.
The sound and the S / N ratio are correct no more.
The tube (the "lamp") is there to look pretty and vaguely color the sound by a pair distortion: the tube is undernourished ("starved", hungry) and can not even find the characteristic curves for such a low anode voltage. In any case if it is non-linear we want to color the sound, it is served ...


Bought around 2004 given its low price to supply a small static phantom, I go occasionally when the audio quality does not matter.
For this purpose it is perfect, it is the equivalent of an adapter is needed from time to time.
Pros: price, durability, reduced size.
The -: blah sound quality, the tube is a selling point (or possibly a distortion that can not be deleted), the limit is unnecessary and inefficient gadget.

melodeast's review (This content has been automatically translated from French)

Behringer Tube Ultragain MIC100
Preamplifier lamp phantom power, phase reverse, 20dB gain reduction, limit
1 channel
1 XLR input
1 jack 1/4 trs
Ditto for the outputs
1 VU meter


Ultra simple to use, there's t really need the manual?
First used to power a condenser microphone (my first) for
Taken lead voice.
I always use for micro mood after changing the lamp.
Possibility of fine-tuning through two large knobs + saw accurate meter
Phase inverter: sound, especially for my use
Attenuator: I do not use it but it can be very useful
Limit: do not use it, especially in the recording, it is horrible


For the price, that blame him? Even on a micro low sensitivity and low gain I have no breath. Transparent preamplifier as the input level is quite low.
The lamp begins to be felt beyond, we obtain a saturation ... Not very pretty.
I would recommend 1000 times a beginner or anyone on a budget.
TIP: If you are passionate and brave enough, it is possible to change the lamp. Look how is a quality lamp and you will see that it's worth it.
To me, the original lamp is not made to be biased. on the other hand, once the light changed, it is frankly very cool to play with the input level to create a beautiful saturation measured to perfection. Then adjust the output level.
Nb: let the heat lamp for 15 minutes


The -:
Limit unusable
No low cut filter
No switch

The +:
Unbeatable value for money
Unbreakable indestructible indestructible
Along race and precision potentiometers meter
Phase inverter
Use once the lamp changed
Connectors and balanced outputs

This costs 35 euros and is Berhinger. Those are the facts. If you know what you can do with!

Sphinx's review (This content has been automatically translated from French)" Better than the most expensive!"

Behringer Tube Ultragain MIC100
1 channel tube preamp.

Jeck connections and XLR input and output.

Gain Control (lamp).

Volume control.



Phase inversion.

Phantom Power 48V supplies.

Metal shell. Generally well finished and looks pretty solid.

External power supply.


Very simple to use: nothing really rocket science!


Almost not breathing! Even with the gain cranked, it is reasonable! Compared to other preamps lamp input range, but still much more expensive (up to 150-200 euros), the day and night! There is hardly any breath with a gain already, so who therefore is perfectly usable, compared to most competing products at this range.

on the other hand, nearly nonexistent color lamp too!


It is therefore especially a small booster-Swiss Army knife of sound quality surprising. It is ideal for people who want a cheap preamp, with the possibility of adding a (very) slight coloration typical "lamp".

If you want a stronger color, then there are two options: buy a much more expensive amp (from 300-400 euros for 1 channel), or changing the lamp.

I currently have a mesa boogie lamp in stock to test, but I have not yet been tested. It is not the loss of warranty stops me (product price "ridiculous"). But I lack time right now (not to write this critique, however!: O))

I would do this purchase knowing what it implies: good boost with decent sound and little or no wind depending on the level of gain used. Swiss Army knife. Ability to change the lamp for a superior (not tested yet: I do an update when it is done).

NB: I have not really tested the limiter. It will also refresh during the test lamp replacement.

lilchris's review (This content has been automatically translated from French)

Behringer Tube Ultragain MIC100
Tube preamp
Two inputs, two outputs, and XLR


Easy to understand, even without the manual.


initially, it is difficult, with little experience of making something clean, but looking for the right ration input / output, we can arrive at the correct results.
Coupled with an AT2020, the voice of spring correctly, no noise, except the PC. Pad -20 is very interesting for vocals.


This is my first preamp

easy to use
very little (or no) breath

Heats up quickly
Without switch

I recommend it to anyone who wants to start.

Djardin's review (This content has been automatically translated from French)" for € 35, it does what you request."

Behringer Tube Ultragain MIC100
Preamp tube.

Jack / XLR input / output
Gain and volume knob

20dB Pad
Phase inversion
48V Phantom Power

Supplied AC power (9V, 1.3A)

For 35 €, it is strictly necessary.


it is very simple.

one branch entering one of two inputs (jacks or XLR), ditto for the exit.
whether a power supply, you press the small button 48 V.

And we turn the gains and volume.

It heats up a bit, but nothing too bad.


amplifies it.

it does its job, it does not seem too blow. after, is that it colors too, not enough? I'm not good enough material to tell.


for about a year.
I use it for:
guitar and bass for home recording, the input line.
Singing and instrument mic with XLR in home studio.

I also used to live and repeat, for a 48V power supply, and to manage 2-3 instruments on the same output (by changing the volumes myself, and managing the power supply).

he does his job. it is inexpensive, reliable now (again, concert in the dust, ok, nothing wrong).

we'll see if it still stands in 5 or 10 years.

for studio use, I find it does not blow much (much less than the preamp of my integrated audio card M).

for 35 €, if you fall on a flawless model (the problem with the entry-level), it does very well what he is asked: preamplify and 48V supply.
For the real studio, it will surely be inadequate. but hey, this is € 35, not 500.

suntsu's review (This content has been automatically translated from French)" Excellent value for money"

Behringer Tube Ultragain MIC100
This is a pre-tube amp with a very simple input gain, output gain, limiter, phase reverse and phantom power +48 v.
connectivity available is as follows: an input jack 1/4 ", an XLR output Jack 1/4" and XLR output.
The format of the machine is relatively compact and highly resistant (metal case)


Operation is extremely simple manual not need to master the six buttons that control the craft.


Contrary to what one might think, the light of this pre-amp makes no noticeable heat on her. Against it is highly transparent and has good clean gain without distortion up to about 2/3 of its maximum power. It is quite possible to change the lamp current to another and get better quality and more analog coloration.


I use it for almost 2 years or more and I am completely satisfied, the value for money is unbeatable and for once Behringer has not planted because their products are not always on top ;-)
So if it all over again I would do this purchase with your eyes closed!
Small bb for limit which is not great.

AlexJazz's review (This content has been automatically translated from French)" Excellent"

Behringer Tube Ultragain MIC100
Tube preamp, XLR


Very easy to use, very simple and powerful equalizer.


No breath, perfect!


Great product, I retissant to buy Behringer, but I'm very happy. Recommended!