Famous analog polyphonic synthesizer from the beginning of the eighties: the Juno 60 was an enhancement from the previous Juno-6 but basically they are exactly the same.
Two years later, Roland launched the successor, the mighty 106 with Midi features keeping same synthesis structure but different hardware.
KEYBOARD (weights 12 Kg. ) 61 keys with no Velocity nor Sensibility.
The design is an hybrid between woody seventies and plastic eighties, big and impressive, especially when compared to the cousin model 106.
The main panel is definitively well-organized featuring 27 push buttons, 21 pot sliders and 6 position switches. On the left side there is a bender for pitch and modulation (plus double sliders for value assignment amounts) a big white button for LFO retrigger restart, Volume and a 3-positions switch for octave height LOW-MID-HIGH .
Back panel terminal connectors: stereo out (3 impedance levels) Headphones out, Cutoff CV control, Clock IN for arpeggio, Tape interface, double pedal IN for patch change and sound HOLD and finally the DCB interface control.
Power supply is internal.
VOICE the main core CPU NEC D8049C manages 6 * analog oscillators DCO digitally controlled.
The synthesis is analog Subtractive mainly based on VCA BA662 yes! exactly like the famous Jupiter 8 or even the much more modest JX3p but also for filter IR3109 and Chorus effect circuit MN BBD.
WAVEFORM oscillators DCO have different summable waveforms: a square with variable width (assignable to LFO or EG) Triangle, white noise + a Square sub-oscillator with fixed volume (octave can be added to the oscillators).
Overall sound is quite classic: all that sonorities from many hits including lush strings, pads, ringing brass and LOT of fun with arpeggiated basslines!
Some little weaknesses: do not expect too much complex patches since the signal path is quite limited to the few panel functions, in addition bass is NOT that punchy even if a SUB OSC helps.
TESTMODE there is a kind of trick to access secret area for unison play for fattening up a bit: turn on the synth with the KEY-TRANSPOSE pressed, then select one of the 3 test modes with the arpeggiator switch position: UP for Unison, UP-DOWN rotate voice at each note and in DOWN mode the voice count restarts always from voice 1 if available, if not the second one, then third one and so on.
ENVELOPE based on 6 * IR3R01 generates one EG (fast enough) per voice with 4 segments ADSR for VCA and VCF.
The VCA EG is triggered also with GATE mode following exactly the key pressure on the keyboard.
FILTER one excellent IR3109 per voice: multimode analog filter with resonant LOW-PASS 4 poles and a very simple non resonant HPF with 4 preset stepped value from 0 to 100% Cutoff: the LPF sounds great!
LFO one oscillator with a single Triangular waveform modulates both DCO pitch and the VCF Cutoff. The relative frequency range is from 0 to 20hz with variable time Delay engage or directly triggered pushing the LFO TRIGGER button.
CV filter cutoff can be driven by an external tension
MEMORY holds up to 56 Patch Memories (8 sounds in 7 banks) in non-volatile RAM. Soldered battery type CR-1/3N 3V that you should change when you noticed some saved sounds going crazy.
The entire memory can be saved or loaded only by TAPE Interface, or in alternative using a computer WAV file hooked to the synth- you can download the Tape Restore file in the right column for free.
UPGRADE there are many Midi options now available on the market. A must-buy worth every euro!
Juno6 is quite the same with no memory, no DCB. The HPF slider is full and non-stepped