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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi MB..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Some sexy SY1 mods I just finished:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>https://farm6.staticflickr.com/5657/22016346254_e460baaf43_b.jpg<o:p></o:p></p><p class=MsoNormal>https://farm6.staticflickr.com/5790/22650341151_3b5fed41bd_b.jpg<o:p></o:p></p><p class=MsoNormal>https://farm1.staticflickr.com/756/22650342761_2dcb18588a_b.jpg<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Outputs:<o:p></o:p></p><p class=MsoNormal>ENV : Amp Env / AR Env from the existing Attack/Sustain on the SY1 main panel<o:p></o:p></p><p class=MsoNormal>VIBRATO : Vibrato LFO CV output from the main panel. Inserting a patch removed pitch vibrato from the preset. I’m not a big fan of pitch vibrato so this was a design choice.<o:p></o:p></p><p class=MsoNormal>BEND : CV output from the pain panel Bend. Post Intensity/Time sliders so you can control the level. This is actually hugely useful as having a controllable key triggered TIME/INTENSITY Release CV patched to PWM or RES etc etc is massive fun..<o:p></o:p></p><p class=MsoNormal>TOUCH CTRL : keyboard after touch CV output, post-sensitivity knob so you can turn it up/down. Its independent to the TOUCH CNOTROL flippers so you can, say, have after touch routed to just PWM or HP FREQ etc etc..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Inputs:<o:p></o:p></p><p class=MsoNormal>TOUCH CTRL : CV input for the pre-wired after touch destination. From the schematics, after touch is routed to both LP and HP cutoff and sounds like it is different amounts for each preset<o:p></o:p></p><p class=MsoNormal>HP & HP FREQ : CV input for just the respective filter.<o:p></o:p></p><p class=MsoNormal>Everything else : obvious<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Knobs:<o:p></o:p></p><p class=MsoNormal>HP CUTOFF and RESONANCE: I needed a way to only engage these when required as I wanted to be able to play the presets exactly as per the factory settings. I could have used a switch (like the existing factory LP FILTER flipper switch) but could not decide where to put it. The solution was to use a stereo switching socket for the HP FREQ/RES which means if nothing is patched you get the preset HP settings. Patching into the HP FREQ or RES then also routes in the two new knobs. It’s not a great solution as you need to put a jack into the socket to turn the knobs ON, even if you are not feeding additional CV onto the jacks.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m new to Yamaha synths and don’t really know the heritage but these mods have taken the SY1 into “wow” territory.. I have lost so many hours just using the patch panel and have not even begun to patch externally. The real “WOW” moment always comes when I remove all the patching, reverting back to the factory preset which bears no resemblance to the sound that was just being played..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a second SY1 in synth-hospital (unfortunately it was dead on arrival after taking a courier drop!) I’m tempted to repeat the mods on this SY1 also just because it makes the synth sound so good..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’ll try and do a quick video sometime soon..<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ta,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Paul<o:p></o:p></p><p class=MsoNormal>London<o:p></o:p></p><p class=MsoNormal>www.punkdisco.co.uk<o:p></o:p></p></div></body></html>