My understanding is that any Voyager can be made identical at this point. Older Voyagers only have a single hardware bank for presets but can be upgraded to the seven bank setup for a few hundred bucks.
Other than that, I’m pretty sure all other components are identical or close enough to identical that it wouldn’t affect upgrades. I’m a musician and not a techie though, so there are more qualified people on here to confirm or deny this.
Welcome fellow Sig owner (I’ve got maple Sig #167!). RE: updates. I’ve got the latest OS (3.4) on mine, and it workes just fine. There were a couple other fixes done to the series later besides aftertouch upgrade. Namely the filter glide fix, the slight click if you move the volume knob around 12 o’clock, and (I think) a VCA upgrade (it was some kind of upgrade to help w/ unwanted noise IIRC). There’s also a retro-fit you can do to get all 7 banks of presets. Personally, all I’ve done to mine is the OS updates. The noise/click/filter glide/aftertouch would all be nice, but nothing I feel I need to do immediately. Well, if you can call almost 7 years “immediately”…
OK. the Voyager showed up today and has some issues.
First the right output has a spitty noise in it like a bad transistor.
The real issue is using the triangle waveform. Some notes have a hiss that jumps up 20-30 db. This can’t be right can it? All three oscillators do the same thing.
I guess a call to Moog service is in order to figure out if the synth will have to be returned.
Well, I am embarrassed but relieved to say the Voyager is fine.
It turns out the noise was not coming from the Moog, but from my Wavedrum. The Moog was making the head vibrate on certain notes and it was triggering a white noise kind of patch.
I didn’t realize anything was active in the mixer other than the Moog, but figured it out after checking with headphones and not hearing the noise.