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JB Systems Dynamo 250

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User Reviews

Audiofanzine FR's review

By Audiofanzine FR, 09/03/2009
(Originally written by asseoa/translated from Audiofanzine FR)

I've been owning two Dynamo 250 scans for one month.

I used them for two events.

I controlled them via a DMX software. (no music mode!)

I had previously used other models but it's difficult to compare them because they were rented high-quality products (Martin).


Summarized review:

Pro: price!!!

Pro: weight

Pro: flightcase price

Pro: nice gobos

Pro: flood power and quality

Pro: sweeping speed

Pro: compact fixation system

Con: only one wheel (gobos and colors not independent)

Con: AC power socket on the bottom side (there's no way to place them upright...)

Con: noise (but not louder than other models and it's inaudible once the music starts!) (I recommend you to use multiple socket outlets with power switches to avoid unnecessary noises before powering them up)

Con: resolution!!! It's the major turnoff, in my opinion. I tell you why below.

Con: strobe effect (more below)

Con: impossible to switch between DMX and music mode via DMX programming


Regarding resolution:

It isn't really a problem in strobe mode or with fast movements!

Every scanner has a "resolution".

It's the number of steps per movement.

The Dynamo 250 has 167 horizontal steps and 40 vertical steps.

So when you do a sweep from left to right you can see the image "jumping" from one step to another. The further the image the more it jumps, and the more the effect quality decreases... ok?

So what I mean is that this scan has not enough steps.

But you'll be the only one to notice it during an event!

Regarding the strobe mode:

The problem is the strobe function:

It alternates the chosen gobo and the previous gobo on the wheel.

As a consequence, if you are on gobo 5 and you turn on the strobe you'll see the flood changing from gobo 5 to gobo 4 instead of turning on an off.

The real strobe only works with gobo 1. (alternate gobo 1 / gobo 0 = no flood)

Could it be that every scan has this problem? I don't know...



Good scans! Excellent for mobile applications.

Light, easy to use, easy to transport in a flightcase, and affordable. I strongly recommend them!

They'll bee a success at events!!!

Good scan but restricted in use

By Gy67, 20/02/2014
Very good quality / price ratio is reliable right sixty output from 4yrs.
The original lamp has kept me 1 year for the two I have.
Well suited for use in automatic (master / slave) for very limited opportunities in manual operation.
Very hot but no surprises so far.
Think clean filters from time to time, it easily gets dusty.
I would do this choice if it is for the same use (auto).
Alternatively, for a small budget, ClubScan 250 electroconcept for use on software for me would be the next choice after his dynamo250.

Well for small mobile disco

By FrenchLight, 31/03/2014
How long have you use it?

For 1 year.

Have you tried many other models before buying it?

Not of moving lights or DMX controllable

What is the particular feature you like best and least?

The single-wheel gobos / colored
+ Good power
-One of my machines moin enlightened than the other, I changed the bulbs but nothing has'm probably a manufacturing defect.
Very sacadants-Movement

How would you rate the quality / price?

Despite the good from errors

With experience, you do again this choice? ...

I will not point me to lyres for better versatility in terms of movement and accuracy

Sono-Ev.'s review

By Sono-Ev., 25/04/2010
Hi! I possde two and soon four because it is the best to have a full effect by evening. Attention during transport the fragile mirror! I plan to buy two others but LED (same model)
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JB Systems Dynamo 250 tech. sheet

  • Manufacturer:JB Systems
  • Model:Dynamo 250
  • Category:Moving mirrors
  • Added in our database on: 06/17/2008

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Other names: dynamo 250, dynamo250