JB Systems VX 400
JB Systems VX 400

VX 400, Dual-Channel Power Amp from JB Systems.

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All user reviews for the JB Systems VX 400

Average Score:4.3( 4.3/5 based on 5 reviews )
 2 reviews40 %
 3 reviews60 %
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trialben's review(This content has been automatically translated from French)" Reassuring"

JB Systems VX 400
Has long been used as main amp he never let go. I use it now to return and I also secure.

Pros: value for money - Powerful - lights - broken - built-in safeguards

Negatives: not for me


cypher666's review(This content has been automatically translated from French)

JB Systems VX 400
<ul class="ul">

<span style="text-decoration: underline;">For how long have you been using it?</span>


Since about one month, it does its job correctly, but is not too much to ask anyway,
clip it pretty quickly if we ask him too and we hear the emergence of a strong distortion.

<ul class="ul">

<span style="text-decoration: underline;">What thing do you like most/least about it?</span>


<span style="text-decoration: underline;">Plus:</span> Facade Alu, handles behind the amp, the ground lift Inter and I'll end by saying enough simpa also design even if it's not its primary purpose it brings a certain charm.

<span style="text-decoration: underline;">The least:</span> A bit too simple to my taste that is to say 2 LEDs (1 for the Protect and 1 clip)
As stated above clip it quickly enough and finally I will conclude by saying missing bridge
<span style="text-decoration: underline;">What is your opinion about the value for the price?</span>

Very correct for a restricted use (home studio, party with friends)

<span style="text-decoration: underline;">Knowing what you know now, would you make the same choice? ...</span>

A show based on need, but yes why not.

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

JB Systems VX 400
- How long have you use it?
For a year and a half.

- What is the particular feature you like best and least?
I like its sturdiness that seems synonymous with reliability. I do not drive because I use them in the vicinity parat am correct in its use. I parat down low enough, if one day I have better speakers, I will test with my bass. I like a little less heat DGIG it seems, but I did not install with other lments rack. To see so ...

- Have you tried many other models before acqurir?
No, no.

- How do you report qualitprix?
I parat correct because it is apparently solid and reliable. Behringer is cheaper, and more expensive it is more expensive. : D

- With the exprience, you do again this choice? ...
I think so. For a more pointileuse, there are certainly better. But what I do it makes me good service.

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

JB Systems VX 400
- How long have you use it?

8 months

- What is the particular feature you like best and least?

The +:

the faade + cover (solid)
opportunities for connections
the ground loop
the robustness of the system (I turned without stoppages in wet and humid trs long max, the sound does not move too much)
it is not ugly

the -:

Lumire the ventilation (squares on the top, cots) that do not help much forcment cool in a rack and especially heat lment directly placed above ( calculated at the time of rack).
not bridgeable
Paying-off factor of relatively low
relatively low noise
force when the clip too, the distortion is quickly consquente trs

- Have you tried many other models before acqurir?


- How do you report qualitprix?

Whereas if the potential of this market I put 5 / 10 (some forwarders to take coefs asss consquent margins (including the State))
Whereas if the market price gnral, I put 7 / 10

- With the exprience, you do again this choice?

I bought this amp to get it into a 3-way active system, it is used for the upper mid / high (8 ohms), thus the factor of Paying-off really does not impede, for the cons Noise is fairly low top, if he had tap 10 db above I would have been a good 9 / 10.

given that it serves as a distribution of proximity we can say that noise can not be too GNER.

I cable as both pls return mix (8 ohms) and does it well, it is well supported, does not heat up too much and trs perfomances are acceptable over time.

within these frameworks of uses, I would do this choice.

jean.mi85's review(This content has been automatically translated from French)

JB Systems VX 400
Good evening everyone!

There is currently no review for this relatively new amp. I therefore propose to introduce me.

- How long have you use it?
Only two weeks at the moment, this opinion will therefore not address the issue of reliability. He has already shot for a total of 12 hours.

- What is so special that you like most and least?
What struck me most from the débalage Metallic aluminum is the appearance of the front, and his impression of strength. Moreover it must be because it is quite thick and very rigid. Then, the affected carcass I liked as well. This is not an ordinary metal very soft smooth and shiny, scratch that first hooked. A very nice touch, although I agree, this is not the purpose of an amplifier.
Note the back of the amp handles to carry it also cover the bottom. Very handy!
I also liked the layout of the fan to the way computer. That is to say that the fan is screwed directly on the radiator inside the amp. On this model, no fan of apparent except through the top grill.
The small detail "gadget" that I liked is the presence of a filter on the front grilles. It is indeed gadget, because unfortunately, no other air intake is filtered.

What I liked a little less is the lack of LED level meter on the front. But it's simple: Clip 2 LEDs, 2 LED protection and a blue LED power.

- Have you tried many other models before buying it?
A good old Celestion DJ Amplifier 500. It is newer ... Otherwise, I have tried no other amp.

- How would you rate the quality / price?
It's JBSystems ... This is done in Europe, and even the carcass of the amp reflects a sense of strength! At electronic we will see over time ... For the price, I think for now he should not hesitate!
- With experience, you do again this choice? ...
I can not answer for now ...

In short, I recommend it! The power may be somewhat limited for large rooms but I did an evening recently with 250W speakers. Knobs of the amp were to 3 / 4 quarters, the volume of the mixer was third. So there was still room!

Next sound is crystal clear! Then it depends on the speaker ...

The amp has served 11 hours in a row (as mentioned above) and has not warmed with hair! So any power loss to report. At connectors, it is fairly complete. Jack and XLR inputs, Speakon outputs or simply screws.

Oh and I forget: it is guaranteed for two years ... It might be nice if needed!

Here here!

I put 9 / 10 because perfection is not of this world ..... "/>

Updated 13/11/09:
Still no major fault ahead of the amp and not worry for now after 3 years or less utilisationplus intenseive! Nevertheless he began to miss a little bit of reserve power but nothing to do with the quality of the material that I always recommend. ;-)