Behringer V-Tone Bass BDI21
Behringer V-Tone Bass BDI21

V-Tone Bass BDI21, Bass Amp Simulator from Behringer in the V-Tone series.

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All user reviews of 4/5 for the Behringer V-Tone Bass BDI21

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Average Score:4.0( 4/5 based on 20 reviews )
 12 reviews60 %
 3 reviews15 %
 1 user review5 %
 1 user review5 %
 3 reviews15 %
Audience: Advanced users
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muzikal's review

Behringer V-Tone Bass BDI21
It's analog. The difference is important compared to digital modelers (see below). Editing is made with markers on paper (not bad with 3B). 100% bug-free. Drive, treble, bass, presence, blend (direct sound and pedal mix), volume. Battery or PSU operation. Battery operation is disastrous, you'd better go with a PSU (a sturdy one).


Before kindergarten there's the BD121.


Okay, there's the matter of the power supply. Don't expect a decent sound with a 9V battery. The amperage is too low, sound has no dynamics and it's lifeless. You need to use 9 V 0.5 A minimum or even more. And then it transforms and it delivers bass and treble, and even mids, with a very good output level. It sounds very big with the blend all the way up, with fat lows that need to be tamed and excellent dynamics, even too dynamic. Even my 8040s have a hard time with it. I tested it with an Epiphone Viola, passive bass with two humbuckers, a Studiomaster P7 console and a TwinQ. It's useful to connect it to a ballsy setup that can take anything. The drive is really nice, the Viola makes it sing, even at full blast. The difference with digital modelers is that the dynamic response and timbre of an instrument are well-respected. There's no comparison. With a tube compressor inserted (Fatman), I don't need anything else. The sound is solid as an egg, punchy, powerful, rich in harmonics.


If you made a blind test with more prestigious models, I think more than one would be surprised. On the other hand, the V-amp modeling from the same manufacturer has no soul, no life, no musicality.
The cons:
- Unusable with a 9V battery
- You need to connect it to a ballsy setup that can handle it and doesn't alter what comes out (console, preamp...), disappointing with a Berhinger console.
- Awful look,
- Behringer is behind it - We'll see how it turns out in terms of reliability...
- Obscene price

The pros:

- Fat sound if used with a high amperage PSU
- Nice drive
- Definitive and maybe even pro takes are possible
- The sound adapts well to any effects, especially dynamics processors
Edit from April 8, 2010

I decided to order the Sans amp VT bass.
Here are my impressions, compared to the BD 121:

- With clean sounds, the VT bass has a wider sound, fuller, it's more precise, too, but there's not a big difference compared to the Behringer. The VT bass has more gain and a better signal-to-noise ratio, too.
- It surprised me most when increasing the drive. To my ears, the BD121 takes the lead with a more reedy, more musical crunch and overdrive, and it handles harmonics better. The VT bass remains rough with the "character" control, which emphasizes the mids and high mids with a striking overall tone.
With distortion, the VT bass has a more modern sound, even if you can reduce that coloring with the controls. The Behringer is more vintage.
Bottom line:
For clean sounds, jazz, blues, rock, the VT bass is the way to go.
For crunch/overdrive, I choose the BD121

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

Behringer V-Tone Bass BDI21
See the specs of the trademark or other notice.

bcp the pedal is heavier than it looks (and other pedals Behr). it is rather a guarantee of quality in electronics. I should just check if they have not put weight to illusion!

However, the knobs are soft and too small, too bad. it will take care for them through the years. I have no plans to torture them, so that's enough.


I bought the BDI for two purposes:
- Save (output to the soundcard and the other to the amp)
- DI have a better concert to rehearse or if not possible to have an amp.

Finally, it allows also:
- To have a boost pedal (blend 0, level above from noon)
- To have a basic EQ (blend 0, EQ and level at noon to choose)


Too quickly tested for now, but:

with the blend at 0 or off, the pedal is transparent.

the blend brings the right amount of "dirt" to an amp too clean (I do).

I have not tested the drive much, but overall it seems a pretty used to add crunch discrete (drive at 9 am), but not really to the saturation. Notice to review the use ...

EDIT: little test recording: the BDI direct the sound card (m-audio D44), no editing to do and the sound is really nice, and this net.
Briefly, it works well for that for which the box is made


Again behringer out a product that is respectable and useable, with a ratio Q / P very good!

AF tests show that the quality is below the original SansAmp, but if the goal is to make music, not comparative, and the BDI is doing well alone.

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

Behringer V-Tone Bass BDI21
Everything said before t ...
This is a PDAL, even if I find that the footswitch is useless, since disables all functions, and thus makes the sound very poor all of a sudden ...
I find Boter not so bad, the top is still sturdy plastic, but the bottom mtal double rubber anti draping, the PSE pedals out its weight, it has the air sound.


Use could not be more simple, the manual is useless (rigor to know what it means to ground lift), his only intrt is to present some examples that give us the Ides of dpart .


The sound is good! I'm not a bass player requires - besides, I'm not really bass player - but I love the beautiful sound.

I use the pedals connected directly to the mixing desk with a Squier Precision bass. And frankly, I'm glad plutt! Nothing to do with the sound of the bass rotten branch same table. Much warmer, much more INTERESTED. I feel that my string hi-fi has become a bass amp!

I will try to sound clips in insrant links. Try clicking the AA or the appearance of a link.
The rglage prsence ( is really nice, it quivaut the Brightness I have seen on some amps. Here, Hey Joe Bass (Neck pickup, his "SVT Style" of the manual available on the Behringer site, with just over prsence).
The two bands qualiseur, well ... qualise, it works well with bass, whatever.
The Overdrive ( is used sparingly, but it is not bad at all (when you drop the treble). It reminds me of the sound of the dirty 60s rock (here I tried the solo My Generation The Who, neck + bridge pickups, the "Solo" in the manual). However, if you are a lover of big mtalleux distortion or fuzz, do not count on it.

Other records (neck pickup, rglages the manual):
- The "Slap (".
- To compare, without BDI21 and "Fat Tube (".
- The "Reggae (".

With regard to the breath, well ... y 'no, unless you go up the treble and prsence background, which all fawns produces a abhorrent.
Behringer prtend site it can be used with a guitar or keyboard, and it's really not a good idea! It's a bass pedals and that's it.

When I have time I will make other mp3 that you can get an ide. If you your kind.


I have since yesterday, I could not put it in all situations, but for now he does not owe me.
I love the rglage "flat" with a little prsence. a ring.
I have not tried other models, I did not invest more than 50 euros, but sounds better than all the tests I've done with bass amps recorded by Line Out.
The report qualitprix is ​​great! 45 euros ... This allowed me to SAVE a bass amp and a microphone for recording. And does not really place.
I find this tool gnial for those who make their recording studio bass.
Behringer thank you!

EDIT May 2011:
Six years later, my pedals dies suddenly ... I do not drop the note, she made me a lot of services for years, dozens and dozens of concerts. I will invest in tech 21, j'espre more sustainable, but the loss of his pedals and trs bad I live since it reminds me not so bad n'tait !