BillB wrote:I get that Summit is a more competent synth in terms of modulation, oscillator options etc, but would it cover that ground - "the Roland sound [...]"
Can't speak for the alternatives, but I've got a Peak, and have had a bunch of old Roland gear over the years. The Juno 6/60 have alternated as my go-to simple poly for almost 30 years.
The Peak can do ballpark Juno, but it's not the same. You can get close enough for music, but in a side-by-side trying to match patches, I've found it doesn't get the flavour. The Peak doesn't really have much of a vintage thing going on really, I think. It can be nudged that way, with a bit of drift dialled in, and filter/vca drive to just begin to roughen things a little, but if it's close to any kind of vintage synth it's more like the later 80s than the earlier models. Probably helps to put it through some period-correct effects and whatnot. The onboard chorus, for example, doesn't sound anything like the Juno's. And it's not just about being able to match patches, it's also about the reach and curve of the controls. Sweep envelope modulation on one synth and it's not the same as on the other. That difference in interaction is, I think, part of the character of each device, and although it might not be important when you just noodle on a preset, it becomes more significant when you're playing the sliders.
The whole 'does this new thing sound like this old thing' is an interesting discussion. I've compared a few new re-issues/clones/models to older gear, and even when they're meant to replicate something exactly, they don't sound like old synths so much as like newly made old synths. If that makes sense. 40 years of use will give anything a patina, and it's this the new gear lacks. That's not to criticise it, I love that we can get Odysseys or MS20s or 808s or whatever for less than the price of a month in the Caribbean – but even the truly analogue recreations are going to sound a little cleaner, a little less wayward, than their ancestors. I'm happy with this, I've got outboard that can mucky stuff up just fine, but it's a matter of preference I think (not mentioning the money).