While we don't yet have a dedicated case for the Behringer DEEPMIND 6 True Analogue 6-Voice Polyphonic Synthesizer, one of the cases in our SUSTAIN line may be a good fit!
The dimensions we have on hand for the Behringer DEEPMIND 6 True Analogue 6-Voice Polyphonic Synthesizer are: (28.6 x 13.5 x 6.5) inches. If that aligns with what you have, we would recommend looking at the SUSTAIN CASE FOR THE SEQUENTIAL PRO 3: (29 x 17 x 6) inches.