Entry level controller, Which of these has the best build quality?

The Denon MC2000.

All of these are not particularly suited for Traktor DJ. Since you failed to tell us what are the really important things (like what software, what kind of DJ-ing and such), we’ll just go on the assumption that you are not on the Traktor path. If you are, your choices are pretty much limited to Traktor/NI gear and in your budget bracket that would get you something like the S2.

You say entry level controller, then you say you don’t want cheap, and then you go on to say you have a budget of about 300 euro. That pretty much is the price range of (decent) entry level controllers.

The controllers you mentioned are all good choices, each has it’s own pro’s and cons. Read the controller guide and the recent reviews on some of them over on the main site.

The DDJ-RB I would only get if you are 200% sure you are going to go with RekordBox DJ software, otherwise the SB2 is a better choice from Pioneer.

As for quality and build and such. It’s an entry level controller, so don’t expect pro quality and features. That said, they are all up to the task and then some. They will most likely be used in a stationary setting for (lots of) practice. They are not gonna get hurt too bad doing that. The occasional house party is certainly possible as well. Depending on your learning curve and playing out (part of that curve), you will start to want more advanced options sooner or later. By then you will know so much about workflow that it will be much easier to pick your follow-up controller.

Hope that helps some.

Neither in combination with Traktor software imho.

You are asking the wrong question though. We cannot decide which one is the better choice for YOU. There are many posts where we explain what steps to take to get to your desired piece of hardware. This choice comes at the end of a process of determining your (desired) workflow, picking your software platform, setting a budget and making a shortlist of 2 or 3 controllers.

Traktor no longer offers (active) support for anything other than their own controllers. With the current version being out for a long time, it seems a matter of time before a new version sees the light. There is absolutely no guarantee that you will be able to map anything yourself to that new version and/or that there will be enough people out there making new mappings for your hardware. If you take a look at the supported controller page of the Traktor website you will see that neither of the mentioned controllers is on there (nor are many other more contemporary controllers).

The MC2000 is easily the most sturdy controller in it’s class (and some of the higher classes for that matter), it’s got the traditional “built-like-a-tank” Denon signature. The Beatmix 2 offers performance pads for example, but you can easily live without in the first period of learning the basics, imho. And if you want to add pads later, a little money will get you a Reloop NEON to satisfy your pad desires.

Well, both size and budget play a role in what features you will find in a controller. Both the MB2 and the MC2000 are relatively compact controllers at a reasonably low price point. Something’s gotta give. In those cases the level meters.

The MTPlatinum WILL have meters, but is bigger. Also the meters say “master”, no clue if they double as channel meters when the cue button is pressed. Not sure how the pricing compares as I haven’t looked at that yet.