how you can’t be satisfied with all theses gears ?
Maybe you just have too much and need to focus more on 1 synth.
yeah Com Truise definitely has a 106. and toured with an OB6. sounds like space is a major factor so the 106 is probably out. OB6 module would likely fit though. REV2 module also not a bad option (can get closer to 106 territory, is more versatile, but definitely different sound than OB6).
others do have a valid point that you have a great collection of gear already. and I think you can do fine with what you’ve got. BUT if you’re really trying to do synth wave, I do see your point that you’re short on polyphonic synths. especially if you don’t multi-track.
Deepmind is very good for synthwave. It’s used by some well known synthwave artists too.
Why not the Roland Jupiter-X.
JUPITER-X is equipped with our latest sound engine, capable of morphing into legendary synths from our long history of genre-defining sounds. It’s so flexible that it can reproduce our highly sought-after analog classics like the JUPITER-8, JUNO-106, and SH-101, as well as digital machines like the vintage XV-5080 and modern RD pianos. You also get the many Roland drum machines that are the foundation of electronic and dance music like the TR-808, TR-909, CR-78, and more. It’s like a studio full of vintage gear, with modern capabilities and a deep synth engine so you can explore unmapped sonic territory.
I so very much can relate to that. Roland should think about doing an MK2…
recently i saw one for 260€…damn i missed that.
Shame is, that Roland is not updating the USB driver any longer, sooo basically all customers who used it via USB and changed Plug Outs from time to time are (/&% left alone by Roland.
The Summit is a sound recommendation. (as are the other Sequential synths mentioned) I just stopped by to say that there is absolutely nothing wrong with the Rev2’s filter. It’s not quite as instantly gratifying as maybe the OB-6 or P-6 (in different ways of course) but it’s actually very nice, smooth, and more versatile than a lot of people give it credit for. Plus the Rev2 itself is so much more advanced feature and modulation-wise than most other modern analog poly-synths. (if you like to experiment, there aren’t many out there like it aside from the Summit, the One, or maybe some digitals). Also, its DCOs work differently than most in that, yes, they’re digitally clocked, but they are also free-running like a VCO. I really can’t say enough good things about it. Plus the splits and layers are nice, and having 16 voices is REALLY nice.
Still, it sounds like you want a Summit based on earlier posts. Probably a good idea to just get it. 
You have too many. Just keep 2 or 3.
No more.
If they’re well utilized or the OP is good at prioritizing what to use and when, I can’t see this being an issue. However, I know a lot of people, myself included work better with a bit less in the studio. Good advice if this is an actual problem for the OP. If not, more is better. 
Wow! This is exactly why I love this community. So many good points and suggestions that made me think really deep in my workflow and what I need.
First I want to address point that many of you made about the gear I already have. I could probably live with just the Hydrasynth and Analog Rytm if I did multi-tracking. But one of the reasons for my recent gear explosion was to get away from computer, which totally changed the way I write and most importantly how much I enjoy doing so.
I also think I need to spend more time with Analog Four and learning it much deeper. This is one piece of gear that is always underused. I know it’s very powerful, but not a soft-spot synth at all. So probably while I save for that next last synth, I should invest my energy into learning A4 much closer.
After reading all the comments and thinking about workflow once again I came to this conclusion. I think I’m not completely satisfied with soft a fuzzy bass and pads. I can do both on Hydra, but the moment I’m using it for something else, I’m losing it for that particular sound. For example if I’m not using it for pads, I have nothing else to do pads on. Every time I’m in that situation I have to revert to multi-tracking with the help of Octatrack. Hence, one of the original ideas was to just get another Hydrasynth. And that prompted me thinking - maybe I can expand my sonic palette with something else that is different, more analog and fuzzy.
Now to comments:
If only it wasn’t green like that. I know it’s a silly thing to complain about.
I was looking into Minitaur and almost decided to get it but then realized I was losing pads on my Hydra and started looking elsewhere. Modular is pure evil =)
Still looking into this. I think most of time I missed something it was more often than not pads or soft bass, which 06A is great for. I think what is stopping me is that I I’m trying to minimize gear that is highly specialized. That’s why I was looking into likes of Novation Peak.
This is exactly what prompted the quest for another synth.
Thank you for reminding me of this. I totally forgot about custom LFO shapes on Hydra. I’m also waiting for NDLR that a friend of mine shipped me to try out.
Thank you for that too! I will certainly get this. Ability to edit LFO shapes chromatically should be very helpful
Thank you for that. To be completely honest, Rev 2 was at the top of my list, until I read a lot of comparisons. I know that the sound is very personal thing, but every discussion that compares Peak with Rev2, people tend to like Peak. This kind of biased me towards Peak. Now I got back to Youtube and listened to some Rev2 demos, and honestly it gives me goosebumps. How is it with bass sounds?
So I guess the choice is down to this:
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Rev2. Get 8 voice desktop, and buy the expansion card to 16 voices later. Maybe just save for the 16 voice keyboard version. Or buy 8 voice keyboard? Something tells me it’s more enjoyable to play this as all in one instrument. The fact that it’s bi-timbral makes me really want it as well.
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Novation Peak. Very easy choice, but I don’t know if it’s the right one.
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Save money for Novation Summit.
I also want to mention that I looked very closely into all other suggestions. For most other synths it’s either workflow, ergonomics or aesthetics that made me look past the instrument.
Nord Wave 2?
U.D.O Super 6?
KORG Prologue?
Owning a Peak has probably stopped me from buying a few synths. Every time I hear a really nice patch on a new synth I think “can I make that on the Peak?” and the answer is almost invariably “yes”. The filter can’t do every sound but it does an awful lot.
I hear you with the green lights of the S-8. It’s not for everyone. I had a System-1 and it sounded so good, definitely one of the few things I’ve sold that I miss.
The Rev2 wouldn’t be my absolute first choice for bass sounds, but it does pretty well. This is one place where the smooth filter could hinder you a little bit. It’s perfect for HUGE pads (and yes, bass and leads as well, and especially polyphonic drones and experimental stuff) but my personal taste leans toward something a little more bubbly like a low-end compensated ladder filter, or maybe a good state variable. (for bass) Stacking voice and unison though will in fact make a huge bass, just a little less bubbly sounding if that makes any sense.
Its low end is great though overall. For examples of bass that I like better, the Erica Bassline, Dreadbox Typhon, Moog Phatty series, TB 303 and clones, Roland SH series etc. Also, you have an A4 which could pretty well handle most bass sounds.
For Summit prices you could probably get and 8 voice Rev2 and a Peak. 
I’m surprised no one has mentioned the Osmose. It’s still not available yet, but if you can wait it will be worth it. It has the most expressive keybed of any modern synth. Every key on it can do pitch bends and it’s essentially a Continuum Board with a more familiar interface. What other synth does that? The sound design is also limitless and is being updated regularly. If the sounds aren’t really your type the controller can still be used with Hydrasynth, Digitone, A4, and any VST that accepts MPE
Seeing the sound palette you already have I would recommend a Waldorf STVC https://m.youtube.com/watch?v=iIQzZDjl3Wk
Oh this is tough. After thinking again today and also going through all my instruments, I think I will save some more money and will get Novation Summit. It is probably the safest and smartest decision for me personally. It was mostly between Rev2 and Summit at the end. I do love the path of getting 8 voice Rev2 now and then upgrade it 16 in the future, but I think it’s GAS more than anything and the fact I can buy it now instead of later. It is much more valuable to learn existing instruments deeper (especially A4) and when the time come I’ll probably know better.
Thank you so much everyone. This was extremely valuable. It’s easy to drown in your own thoughts, and make bad decisions. It always helps to talk things through with other people.
I would recommend to rethink this. There has never been the holy grail of synths, which could do all the things we wish. And I guess, if there would be, it would be very expensive, like the Schmidt Synthesizer.
There is a reason, why some of us have a couple of spezialized monophonic synths and maybe one or two polyphonic machines. Polyphony is supposed to give us the option to play many similar voices at once in the first place. Many polyphonic synths are no champions at doing basses or leads. They do a good job, but spezialized monosynths prevail in this realm.
To have one excellent polyphonic synth for pads or chords and some specialized monophonic synths for basses, leads, FX etc. gives us not only more versatility, or more individual voices with interesting character, it’s also much more affordable … ![]()
Just to add a different option…
How about:
sell the A4
buy a Peak or Rev 2
and also a killer mono for basses etc.?!
Has anybody mentioned the Korg Prologue series, 8 or 16 voices and the particular “Multi-Engine”?