Duofonik dual SSM2044 board and euro adapter.
Moderators: Kent, luketeaford, Joe.
Some boards came in
The only mistakes i found were A and B outputs got mixed up,
They made the holes a little bigger then i expected, but its still easy to build.
there is an error on the board by the output A amplifier. it can be fixed by shorting out C9 with a jumper. (on the off chance that the amp goes unstable, you can solder the c9 capacitor across u2 pin 13 and 14.)
here is the prototype for my version of "all options"
(you could do it with more jacks and no switches if you wanted)
and here is the MOTM panel for "all options"
Ill be setting up a buying page as soon as i make some examples, maybe a video, and double check my schematic, BOM etc (and figure out how to set up a buying page)
The only mistakes i found were A and B outputs got mixed up,
They made the holes a little bigger then i expected, but its still easy to build.
there is an error on the board by the output A amplifier. it can be fixed by shorting out C9 with a jumper. (on the off chance that the amp goes unstable, you can solder the c9 capacitor across u2 pin 13 and 14.)
here is the prototype for my version of "all options"
(you could do it with more jacks and no switches if you wanted)
and here is the MOTM panel for "all options"
Ill be setting up a buying page as soon as i make some examples, maybe a video, and double check my schematic, BOM etc (and figure out how to set up a buying page)
Cool. Looking forward to hear it 
Here are a couple of quick demos so far
some sweeps with various tweakings, you can hear some are more traditional, while some have highpass and bandpass components. Ill redo this one, my converter got overloaded on the low sounds.
http://soundcloud.com/neutron7/neutron- ... k-sweeps-8
sort of traditional synth sound. just one oscillator.
http://soundcloud.com/neutron7/demo1
some sweeps with various tweakings, you can hear some are more traditional, while some have highpass and bandpass components. Ill redo this one, my converter got overloaded on the low sounds.
http://soundcloud.com/neutron7/neutron- ... k-sweeps-8
sort of traditional synth sound. just one oscillator.
http://soundcloud.com/neutron7/demo1
Last edited by Neutron7 on Fri Jan 27, 2012 8:34 pm, edited 2 times in total.
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frozenkore
- Super Deluxe Wiggler
- Posts: 1094
- Joined: Thu Oct 08, 2009 4:19 pm
- Location: Highland, IN
and another one 
I am really liking this thing.
In this one you can hear it fade from high pass to band pass to low pass a couple of times, various self and cross modulations of the 2 filters and some self oscillation
a bit of distortion(besides the wanted distortion of the filter itself) seems to be happening because the signal is sometimes too hot for my converter. this module especially can sometimes get a really hot output because of the way it cancels and boosts at various frequencies.
ill make n optional component change which will keep it at a more reasonable output level
sequencer = cirklon + CVIO
vco = teezer
vca = Oakley triple vca
ADSR = MFOS
I was using a delay when it was recorded scope "pattern delay" on xite-1
http://soundcloud.com/neutron7/demo2
I am really liking this thing. In this one you can hear it fade from high pass to band pass to low pass a couple of times, various self and cross modulations of the 2 filters and some self oscillation
a bit of distortion(besides the wanted distortion of the filter itself) seems to be happening because the signal is sometimes too hot for my converter. this module especially can sometimes get a really hot output because of the way it cancels and boosts at various frequencies.
ill make n optional component change which will keep it at a more reasonable output level
sequencer = cirklon + CVIO
vco = teezer
vca = Oakley triple vca
ADSR = MFOS
I was using a delay when it was recorded scope "pattern delay" on xite-1
http://soundcloud.com/neutron7/demo2
and yet another one
this time with the filter A and B controlled by different CV sequences at the same time, still just one oscillator, VCA and volume ADSR
Same equipment as above, but as well as the CV for the oscillator, the cirklon is sequencing 2 additional CVs for the filter.
this time i attenuated the output so there is less distortion.
http://soundcloud.com/neutron7/demo4
this time with the filter A and B controlled by different CV sequences at the same time, still just one oscillator, VCA and volume ADSR
Same equipment as above, but as well as the CV for the oscillator, the cirklon is sequencing 2 additional CVs for the filter.
this time i attenuated the output so there is less distortion.
http://soundcloud.com/neutron7/demo4
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Paradigm X
- Super Deluxe Wiggler
- Posts: 2054
- Joined: Tue Nov 02, 2010 5:43 am
The purchasing buttons are now at the bottom of the page here.
http://neutron-sound.com/duofonik.html
type MUFFS741 in paypal message and get a $5 refund on boards
http://neutron-sound.com/duofonik.html
type MUFFS741 in paypal message and get a $5 refund on boards
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negativspace
- Manhattan Analog
- Posts: 6574
- Joined: Tue Apr 13, 2010 2:50 am
- Location: Manhattan, KS, USA
- Contact:
how is the SSM filter in your solaris? i expect it is modeled with all the capacitors and op amps being exactly the same with no variation so it sounds close, but not quite right.
the op amps and capacitors are all a little different, and the filter IC also has a DC offset which the DSP would not have. everything adds up.
In scope i could make a filter that was a bit more real, but to really do it right i would have to be able to open their SSM model which has a lot of the transistor/op amp sound done.
the op amps and capacitors are all a little different, and the filter IC also has a DC offset which the DSP would not have. everything adds up.
In scope i could make a filter that was a bit more real, but to really do it right i would have to be able to open their SSM model which has a lot of the transistor/op amp sound done.
With all due respect to JB, Klaus Piehl and him did a wonderful job, but the MM FIlter and Tube FIlter are the action.
I would ask JB for one those DIY diagrams and look at those as they are truly unique and special. The CEM and SSM, even the Obie and Mini are really nice, but pale next to the JBowen MM and Tube beasts.
Maybe they nullify, I am not sure....
I would ask JB for one those DIY diagrams and look at those as they are truly unique and special. The CEM and SSM, even the Obie and Mini are really nice, but pale next to the JBowen MM and Tube beasts.
Maybe they nullify, I am not sure....
