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Oxi One & Eurorack


This is a configurable setup for a solid Oak stand, containing the Oxi Instruments One in front and Eurorack rows above!

The first model is 84HP wide and has 2x 3U rows and a 1U row … basically this is the ‘first of many’ and by YOUR request we create new models together 🙂 It can also be wider on request and I added the 70HP version as well which is exactly the width of the Oxi One.

A hole in the back to feed out midi cables, or the cable to the Oxi Pipe. Alternativelly you can still use the CV & gate outputs on the back of the Oxi and bring them to the front, just leave a 1HP gap in the 3U or 1U row and feed out the cables there. Optionally there is also a Konstantlab USB output, using the USB power from the bussboards to power the Oxi or any other USB device. (note that it might cause interference so it is advisable to power the Oxi with it’s own power source).

Since all orders are made-to-order, you can select all options here and see how they inflict the price. Production is planned according to a FiFo system, first in – first out, in the order they come in.

Custom sizes and configurations are possible on request, so do not hesitate to contact me if you have a request!

Oak finish

Two layers of Osmo is my standard finish, a hard-wax oil which keeps the solid oak look but gives a nice matt protection.

As an alternative there now also is linseed oil 'natur' as a finish option, that is the coloured oil without colour. It gives a little more classic & yellowish finish with a little more touch of the wood grain in comparison to the Osmo oil if you prefer.

For the coloured cases, I use Satin Wood Oil, based on pure linseed oil and natural pigments. Standard colours are available here, but loads of colours are available for custom work!

Rails colour
Standard the rails is in aluminum colour, but optionally it can be replaced by a black version.
Please select a multitude of this per 1U or 3U row, so if you order a 9U case you'll have 3x 3u = 3 rows x black surplus.
Rails insert

Select the type and amount of inserts you need here:,

For the threaded inserts you need to select the number of sets you need per 3U; so with 3U just 1x, with 6U you'll need 2x, with 9U it is 3x and with the 12U case you need 4x selected and then 5x with the 15U case. (NOTE: due to availability at my suppliers, brass threaded strips are not available but only the steel version and even there stock is limited.

For the M3 slide nuts you can select them as a multitude of 20 pcs, just select how many you would like in your complete case.

p.s. I've selected the 60HP but you'll get 70HP of course!
Power supply

The Meanwell RT-65B is a low cost and efficient power supply, giving loads of power for a good price. By far the most popular and most sold PSU for Eurorack. The PSU's always come mounted to the case. The power is either DIY or pre-wired on all low-voltage wires & ground. The final connection from the socket to the PSU has to be done by yourselves (no soldering, only cable stripping & a few screws).

RT-65B Specs: +12V 3.5A -12V 1.0A and 5V 8.0A, total output power 65W.

Alternativelly there are also 2 options by Konstantlab:
HammerPWR & SeventyPWR are externally powered from a power brick. This creates the option to fully wire the system for you and ready to go, since there is no high voltage inside the case. These power supplies have been developped for Eurorack specifically, are known for their power & low noise but to come at a cost.

- HammerPWR (100 Watt output) + MeanWell 120Watt adapter, +12V 5A (2x 2.5A), -12V 2.5A and +5V 2.0A

- SeventyPWR (70 Watt output) + MeanWell 90 Watt adapter, +12V 2.5A, -12V 2.5A, +5V 2.0A

Calculation power output example based on ModularGrid:
(1.6A on +12V = 19,2W) + (0.8A on -12V = 9,6W) + (0.1A on 5V = 0,5) = Total output power of 29,3 Watt


Power to your modules are supplied by bussboards
When you select a MeanWell PSU you'll get the Modular Synth Lab Bussboards with 20 headers, when you select a HammerPWR or SeventyPWR you normally get the Konstantlab's filtered bussboards with 19 connectors each but this one is to wide for 70HP so I'll use the Modular Synth Lab ones instead.

Recommended to have a maximum of 3 or 4 bussboards per PSU.

Choose for a DIY cable kit and assemble it yourselves/with local help. or choose for a system where all low-voltage cables have been pre-wired! For the HammerPWR & SeventyPWR PSU this means that the case is ready to go, with the Meanwell RT65B you'll only need to connect the socket(s) to the PSU('s).

Power socket

1 power socket for 3x MeanWell PSU's max. to not exceed the 10A fuse, otherwise select multiple.

There will also be a hole placed on the other side of the back panel to feed through the power & midi to your Hapax.
Power cable
AC Power Cable – 1,5m long, max. 250VAC
Shipping box (optional)
Alternatively to the shipping crates, I now also offer super-strong triple-layered cardboard boxes for small & regular size cases. The case itself is packed inside with foam blocks. Quite a good solution for international transport as well!
The Oxi One itself is not standard included in the purchase BUT you can select it and I will order it for you and ship together. I have 1 in stock with some extra since I used it to make the prototype case: it is the same price as a new one but comes with the Oxi Pipe and the Midi splitter!
synth - Oxi One
USB port by Konstantlab
This double USB port uses your Eurorack power supply and bussboard to output USB power on the side. Do note that powering a synth or other device might cause interference with your Eurorack (noise) so test if this works for you. You CAN charge your Oxi One via this way when you are not activelly using it and disconnect when it is becoming crucial for recordings since the Oxi One has a build in battery.
Additional features - Konstantlab USB output
Custom amount
You can select this when we had contact about custom work, otherwise just leave it empty :-)

Made to order (currently estimated 4 to 8 weeks)