I bought this for the ju-06 and it is a great accessory for the synth.
The unit is made of a metal chassis and is very solid. i felt the instructions on using the stant could have been a bit clearer but it is neat the way you can tilt the synth at different angles or have if flat down.
Playability is good with the velocity sensitive keys and it provides good protection for the synth module. it powers off a cable plugged into the back of the synth and installation of the cable is pretty easy.
A feature i would have liked to see on this would have been some octave buttons for changing the octave of the keyboard but this can be done through the extra functions on the synth itself if you need to drop outside the octaves available on the physical buttons.
To finish this is a well made rugged product and I would recommend it to anyone with a Roland Boutique series synth.
does the job it says, velocity sensitive keyboard for boutique series
i bought it for a jx-03 and does what it says, velocity sensitive keyboard. i'm not really a keyboard player, cannot say much of playability/response...small keys...seems solid, i noticed some space between the octaves, not totally uniform...probably a bit overpriced for what it is but hey, your boutique series synths will fit perfectly.
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