John's Organ Works

MIDI Keyboard Stacks
Midified Pedalboards
Used Organ Benches
Selling Policy
Place an Order
Contact Me
The Virtual Pipe Organ Explained
John's Blog

Do Not Feed!
Organ Grinder

US1 - One Keyboard MIDI stack



The US1 one-keyboard "stack" is a higher spec version of the MS1 and is useful for the same situations:
- where something very portable is needed
- for use as a "digital harmonium"
- to stand on top of an existing MIDI-capable instrument to provide an additional manual

There are two main advantages compared to the MS1:
- the pistons are better quality
- the cheeks are wider and profiled
Since the start of 2021, both models of keyboard stack have utilised the M-Audio Keystation 61 Mk3, so there is no difference in touch.

The stack plugs directly into the USB ports of your computer, or a powered USB hub. Use the stack on its own, or combined with a MIDI pedalboard. Can be placed on a table, desk or other convenient surface, or built into an existing console.

The stack is guaranteed for one year.  See Our Selling Policy for the terms of our guarantee.

Features at a glance
* one full-size 61 note keyboard
* 8 pistons arranged in two groups of
* semi-weighted touch
* substantial bolted MDF chassis - no wobble!
* requires no external power supply and no batteries (draws power from USB connections)
* requires no MIDI-to-USB converter
* non-scratch feet (which may be removed if stack is to be bolted down)
* option to add music stand
* finished in black  (goes with anything!) Other colours are available
* can be transported in boot or back seat of most cars
* fully compatible with Hauptwerk
* a generic pdf User Guide is available from our Downloads page
* needs 2 available USB ports

The 16  pistons can be configured to do almost anything in Hauptwerk. Most obviously they can be used as combination pistons, but they can also carry out menu commands. Particularly useful ones are to advance the registration sequencer, or to start and stop the built-in recording. The pistons are not numbered, but they are grouped into fours for ease of identification.

 MIDI output channel
MIDI output is on channel 1 for both keyboard and pistons.




Place an order

Return to MIDI keyboard stack page

Return to home page