Jaspers 4R-150B

This is a well built sturdy and flexible stand that can carry many lighter keyboards or various devices, which can be organised in many ways. It is quite weird that there is no instruction manual to show you how to assemble the stand, which comes delivered in pieces. It is also weird that Jaspers website does not include any information as well. Assembly isn't particularly hard but I can recommend checking the pictures on Thomann website before starting.

More importantly, this stand has a few significant design problems:

1. The lowest section is reinforced with two aluminium tubes and two 60cm long supports (arms) for heavier keyboards. The first problem is that this only works for an extremely large keyboard that has a large depth like some organs or vintage synthesizers. If you, like me, have a 30kg stage piano with a depth of only 30 centimetres, the instrument will be practically standing on only one aluminium tube on a front side of the stand and its weight won't be equally distributed making the second aluminium tube on the back completely useless, which can cause a stage piano to slip down.

2. The second problem of the lowest section is that there are 60cm long supports (arms) included in the package. This means that if you want to put a heavier keyboard on them and distribute the weight equally over two aluminium tubes (front and back), you will need to put a keyboard at least 70 centimetres high (maybe even a bit more). If you wish to put the keyboard lower, you would need longer supports because those 60cm long supports that are included in the package won’t be able to reach the back aluminium tube and as a result, a stage piano would only stand on one aluminium tube (in front) and eventually slip down.
In some cases, like mine, this just does not work at all but some people might solve this problem by buying additional 70cm long supports that might fit the larger gap between two aluminium tubes caused by lower keyboard positioning.

3. Keyboard supports, which you may get in various lengths, have one limitation - once you attach them to the aluminium tube you can move them up-down (if you want to change the angle of the keyboard position) or left-right but you cannot move them more forward or backwards into the stand. If this was possible, it would eliminate problem 1 and 2 that I described.

If you have mainly lighter keyboards, up to 15kg, you won't have any problems and this stand will be perfect. However, heavy keyboards without a large depth will have their weight unevenly distributed when positioning them on the low section. Unfortunately, it is impossible to discover these problems unless you buy and try the stand by yourself. One can only hope that Jaspers makes a redesign of this stand.

Der Keyboardständer von Jaspers ist federleicht, dabei aber vollkommen stabil. Es gibt nichts, was ein Pianist/Keyboarder mehr hasst, als wackelnde Ständer - der Jaspers ist rockstable, wie ein Orgeltisch. Dabei wiegt mein 4R-150 weniger als mein K&M Orgeltisch mit zwei Etagen.
Der Aufbau braucht ein bisschen Zeit, ist aber unkompliziert. Das einzige benötigte Werkzeug ist ein Inbusschlüssel. Dabei ist das Ständersystem äußerst flexibel. Mit dem erhältlichen Zubehör (wie zusätzliche Haltearme, Laptophalterung etc.) kann man sich leicht den perfekten Keyboardständer für die individuellen Bedürfnisse zusammenkonfigurieren. Auch Magic-Arms lassen sich leicht anbringen, wobei man darauf achten sollte, die Clamps nicht wie ein Berserker zuzuknallen, irgendwann ist auch ein Aluminiumrohr an den Grenzen seiner Steifigkeit angelangt. Die Kabel lassen sich leicht mit Kabelstrips an den Rohren befestigen, so daß alles fein säuberlich aufgeräumt ist (hab ich gern so im Studio).
Mein "großer" Jaspers trägt derzeit: Stagepiano (32,5kg), einmanualige Zugregisterorgel (18,5kg), 2 Nord Synthies, Minibrute, Mopho X4, Prophet, ein 19"Rackmixer und noch allerlei Kleinzeug. Zugegeben, ich habe Querstangen in Überlänge, sonst hätte nicht alles draufgepasst was nun drauf ist.
Sollte ich nun sagen "Ich würde das wieder kaufen"? Ich sage lieber: Ich habe es wieder gekauft, habe nun einen 4R-150 und einen 3R-140 im Studio. Dank der Rollen ist das Zeug blitzartig "am Start", und ist trotzdem nie im Weg.
Sehr empfehlenswerte Anschaffung, möchte ich meinen.

I use Jaspers 4R-150B for housing all my current home studio. In the lower rack lies a 28kg Korg Triton Extreme 88. In the rest racks lie four sound modules, a mixing desk, Midisport 4x4, a 21" monitor, a laptop and a Mininova leaving enough space for even more.

The stand is unbelievable light and rolls on its wheels with no difficulty even when loaded. It is also very stable.
Assembling is easy and quick and doesn't take more than 10 minutes. Mind though that you should spend some 15 minutes more before you do it in order to be sure that you assemble it right and as your needs impose. Expect no help from a manual or from Jaspers website. In the box there is only a generic photo and a couple of words that don't give any serious hint.

The holder stoppers are lame. They are from plastic (why Jaspers?) and although they can be easily replaced there are no spares in the box you receive. Two of them came to me broken and Thomann has no stock of them so they have to call Jaspers. You will receive some spare adhesive felts which will come handy sooner or late since there not of the highest quality. Two of mine came damaged.

Pros:
Lightweight, easy assembly, sturdy, good quality wheels

Cons:
Plastic (!) stoppers, a bit pricey, no assembly instructions

In general I think you won't regret buying it although a few minor changes would make it even better.

In the link below you can find a very interesting article of Keyboard magazine and also some assembly help:

http://www.keyboardmag.com/accessories/1187/jaspers-keyboard-stands-the-solution-for-stacking/29460

I bought the Jaspers 4R-150 with the intention of using it as a 3R stand, where the second tier would have additional support as per first tier. A spirit level is needed to properly arrange the assembly without frustration. Be careful to double-check your work before placing your machines, there are many points to tighten. Once assembled, the unit is excellent. I used shelving material across each tier with a 90 degree bracket on the front edge of each shelf to stop machines from sliding. With appropriate shelves and support, you will save money on the extra brackets for each piece of gear.