Juno 106 is a gray with small speakers. It has the same characteristics as the Juno 106: (I copy and paste)
Keyboard: 61 keys.
Type Summary: Subtractive.
Waveform: square and sawtooth (stackable).
Polyphony: 6 voices.
Number of Generators: 1 + sub-oscillator DCO.
LFO: 1 (triangle), with delay.
Envelopes: ADSR 1.
Filters: 1 PB (positive or negative polarity) + 1 PH (24 dB / Oct).
Sound: 64 presets + 64 prog.
Display: 2 Figures LEDs.
Effects: Chorus (2 positions)
Audio outputs: Stereo.
Output Audio: 1x stereo output (L / mono - R). Phones.
MIDI In, Out, Through.
Pitch Bend, Modulation, Portamento (knob + switch). The pitch bend is adjustable due to the DCO and the filter, the LFO modulation is attributable only, and is also adjustable.
There are more, so two speakers can be practical to play like that, without splitting, but that's all: it is not super integrated speakers, just small speakers. There are also 2 audio inputs, which can connect to other instruments, but NOT to treat them with the filter. This is just to play directly on the drivers HS-60. Useful if you want to play with friends without amps or PA system, but I do not use it.
By inserting an adapter into the outlet jack 6.35 "phones", it prevents the sound out of speakers, and you can plug your synth normally.
As the Juno 106, it suffers the same ills: the oscillators are weak. The mine has two defective, so it is used mostly in mono, but without losing its SOUND.
Operation is simple when you know how subtractive synthesis works, basically the same as me. All features / controls correspond to a fader or knob volume pot, so the editing sounds is easy. I have no manual, and I have not suffered. I do not know the principle of "delay" on the LFO, but I quickly understood.
Short, easy, basic, and effective: when modifying parameters, the filter example, you can feel it affects the sound is delicate and deep, more than one analog modeling synth, although some a very good sound too, I'm not a purist vintage analog.
The sound is "warm" deep, can be powerful bass and groovy ..
The only problem is that apart from the sound by grinding as in Rollin '& Scratchin Daft Punk, Juno 106 - and HS60 - largely because of the Juno 106: it's stupid to say but looks like Yann Store Audiotrok, "it's not a synth research. It has a sound all his own (although I'm not a connoisseur of analog synths), without being cliche: it sounds like a Juno. But Juno is hot, and its sonic palette is still large enough to satisfy many applications: bass, pads, leads, ..
It may sound like the 80 year 08 or 70's. The presets are cliches because they were programmed at the time of its release, in the 80s (and I hate that sound), but do not stop there, we quickly found how to do what you want.
I think the keyboard is not velocity sensitive. One can make his life using modulation, filter envelope, etc. ..
The chorus is superb. The effective filters. The "noise" powerful. The Sub-oscillator practice to inflate more or less sound.
But there are only two waveforms on the "COD" square and triangle that can play simultaneously, and the sub is a square tilt (which plays an octave below the other, I think). There is only one LFO, basic too.
To have a warm classic and versatile, it's a good synth I think
But to look for textures, have an arpeggiator, create sounds a bit complex, it is not too ..
I had an example in comparison with a Nord Lead Rack 1:
I use it for several months,
I like its warm sound, ease of use: I use it in manual mode (without using the presets), and it allows you to find or to quickly find the sound sought by manipulating the faders.
I like less the fact of having two broken oscilloscope, which limit its use: no polyphony. The change is not too expensive (there are very good at 60 € each) but it's still bad.
It really is a good synth, which is exactly what he does, but does not go further. But as I said, it is versatile, so for the low (very powerful techno / electro, or "groovy" ..), water (provided you have all ok Osc), the leads .. it is great. But if one looks for textures or sounds complex, we need another synth, with assignable LFOs, arpeggiator, etc. ..