Roland Alpha Juno 2

The Roland Alpha Juno 2 is an analog polyphonic synthesizer manufactured in 1986. It features one Alpha Dial that controls multiple parameters, as well as MIDI In, Out, and Thru functionality. It is well know for its use of digitally controlled oscillators in conjunction with analog filters. The Alpha Juno 2 added an extended velocity-sensitive 61-key keyboard and a slot for an external memory card..

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  • Keys , Synths
  • Alpha Juno 2

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Keyboard 61 velocity keys with aftertouch
Functions LCD display, 39 buttons and a jog wheel. On the left side a joystick that acts as both pitch bender and modulation functions
Connectors Midi interface, tape interface, main out, headphones out, expression pedal assignable to volume / aftertouch / velocity, assignable pedal-patch up / portamento on-off / chord memory on-off, hold pedalswitch input.
Ju-2 special playmode functions Octave transpose keyboard, portamento glide, chord mode learn (it outputs Midi), bender range 1 octave setting, key transpose, 15 aftertouch levels assignable to VCF / DCO / VCA
Filter Multimode VCF based on 6 IC X IR3R05 (also VCA), lowpass at -24dB/Oct /resonance (it does not auto-oscillate), highpass- only 4 preset values. VCF system provides keytracking system scaled to 15 values
Memory 64 ROM presets, 64 RAM slots + 64 others if optional cartridge m64c is fitted. Sounds can be saved to magnetic tape or Midi exclusives data dump. Battery Replacement-change lithium battery model CR-2032 soldered to the mainboard.
MIDI Some basic CC# are managed including- modulation, foot control, portamento time and hold
Envelope a single 4-stages + 3 time levels with polarity inversion EG assignable to DCO pitch, VCF filter cutoff, VCA amplitude with special gate mode. In addition the VCA provides a 15-levels keytracking system.
LFO a single delayed modulator and 2 destinations with individual depth values DCO pitch, VCF filter.

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