I am also selling the following to make room for the new toy(s):

Elektron Monomachine MKII
2 months old, mint condition, includes all original manuals, power supply, and
original box.
I paid $1500 2 months ago, selling it for $1400 firm. Save yourself $100 for a
unit that may as well just be new. The protective plastic is still on the
display.

Quasimidi Sirius
Perfect condition cosmetically and functionally. A very fun synth with a fun
and interesting sequencer and vocoder. Includes original manual, power supply,
and microphone.
$850 or best offer

MOTU 24i (the original version, not the newest one)
You will need to purchase either a PCI-324 or PCI-424 card to use this if you
don't already have one. In perfect condition. $400 / best offer

Akai MPD32
I bought this one month ago, used it for about 5 minutes, decided it wasn't for
me.
I paid $330 + tax a month ago. It is in perfect condition and includes original
documentation and software. Yours for $250