Roland Jupiter-6 SN 311526

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"From manual:
❉ The Jupiter-6 (JP-6)is the 61 key, 6 voice, 12 VCO polyphonic synthesizer that offers an exceptionally wide variety of rich sounds, therefore greatly expands the performance capabilities.
❉ The JP-6 includes memory capacity to retain up to 48 different synthesizer patches.
❉ Any program can be temporarily edited during live performance
❉ You can write a Tone color and various effect modes into any of the 32 Patch Preset memories, for quickly using them later, during live performance.
❉ Battery back up system to retain the memory even when switched off.
❉ DETUNE function allows a powerful ensemble effect in SOLO UNISON or a UNISON mode.
❉ A quick tuning of all the 12 VCO's is possible by the automatic tuning function.
❉ By changing the key mode (WHOLE, SPLIT-1 & SPLIT-2) and Key Assign (POLY-1, POLY-2, UNISON, SOLO and SOLO-UNISON), various attractive effects will be obtained.
❉ Many different Arpeggio effects are available by controlling the Arpeggio MODE and RANGE.
❉ The tape interface enables you to save the 48 Patch Programs and 32 Patch Preset memories into an ordinary tape recorder for storage and later retrieval.
❉ The Manual Section includes various interesting functions such as Cross Modulation, Synchronization, chromatic Range adjustment, intensity control of the Key Follow effect, Patch Shift function, etc.
❉ If connecting a Pedal switch to the PATCH SHIFT jack, you can call 8 Patch Memories within a Bank one after another, simply by pressing the pedal.
❉ The DIN jack (OUT/IN) for MIDI standart external device."