Sub osc??

illiac · Joined: Jan 17, 2008 Posts: 2 Location: Chicago

Hey everyone! first post here.

I'm putting together my first eurorack and am still deliberating over most of my selection...

What looks definite though is a Cwejman vco 2rm dual oscillator.

What I want to achieve is a 2 osc synth with a sub oscillator (sh-101 style)
but I'm not sure what i need. Can 1 of the osc's in the cwejman function as a sub? Should I look for an audible lfo?

Sorry if it's come up already, couldn't find anything on the subject.

Thanks!!

REwire · Posted: Thu Jan 17, 2008 8:05 pm Post subject:

Cwejman's OSC's can drop down to sub levels as they have a wide range and LFO Switches. You can also run one into an audio divider if you want to achieve a sub without losing one osc. Only problem with the VCO-2RM is that it does not have individual outputs for the waveforms so you'd have to split the signal. Cwejman is coming out with a new single Osc with individual outs and some new thicker waveforms.

Per · Posted: Sat Jan 19, 2008 3:47 am Post subject:

The Cwejman dual VCO sounds great, but are expensive, and you might want the two VCOs for more advanced missions than just a sub VCO.
The classic sub VCO sound is an octave divider.The Doepfer A-115 is a cheap one. More fun and powerful is the Blacet Binary Zone, but then you have to add a Blacet Frack Rack to your rig.
If you have enough money, my advice is to add a cheap Analogue Solution or Doepfer VCO. Properly tuned and in hard sync, it works like a sub VCO. But it can also add some real fatness to any sound.
Good VC LFOs that track the 1 v/octave scale is just the same as a good VCO, and that increases the cost. The Cwejman dual VCO and dual LFO is more or less the same core electronics.
Per

morbius · Posted: Sat Mar 15, 2008 9:54 pm Post subject:

I dunno if this is something that would be compatible with your needs... but- just so you know, I have two Synthesizers.com modular systems... and I have successfully taken the Q106 osc. down to somewhere near 1 cycle : 20 (or so) hours. yeah... that's right. So low, that it's impractical to record as a demo or 'proof' (if you will).

Using the Q125 Signal Processor patches to the Q106's 'linear' input, I started the cycle, and over ten hours later, it STILL had not come close to finishing one cycle. Of course, the most obvious question... what practical purpose does such a low frequency serve? I dunno. I just wanted to see what was possible, since a couple of people complained, saying that Synth-dot-com doesn't offer an LFO. As the developer, Roger Arrick has said, why make a deditcated LFO, when the Q106 will do that... and so much more (perhaps cost is what some look at). But at less that $200... with all the trimmings, waveforms, sync, and Calibrated Range Switches... it'll do much for you.... and, it is stable, stable, STABLE! No drift... AT ALL.

~Morbius~

New CD "Remembering Tomorrow" soon to be released (wild with analog-modular and digital synths).