tag:blogger.com,1999:blog-1249615655314260587.post2705368583550601767..comments2024-02-21T01:04:06.333-05:00Comments on Synth Hacker: Polysix - Removing Korg's Treble BoostChiphttp://www.blogger.com/profile/10352943033779293161noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-1249615655314260587.post-84224505793312720172020-02-19T21:17:43.393-05:002020-02-19T21:17:43.393-05:00Can you please help me out with this?
Mine is also...Can you please help me out with this?<br />Mine is also a KLM-368A and I think something went wrong<br />with the process of removing the VCF...dododododoohttps://www.blogger.com/profile/05623582696095278815noreply@blogger.comtag:blogger.com,1999:blog-1249615655314260587.post-28880967727468002692018-10-15T14:32:29.652-04:002018-10-15T14:32:29.652-04:00The Plot thickens on this one!
I've just remo...The Plot thickens on this one!<br /><br />I've just removed the VCF on my Polysix and thought I'd have a go at this 1K Resistor thing.<br /><br />My Effects Board doesn't have it, R167 is just a single 4.7K Resistor.<br /><br />My Effects Board is marked up as a KLM-368a and my Serial No. is 392501, it's possible they tweaked these settings a bit as they went through the years.Anonymoushttps://www.blogger.com/profile/13195284615375234359noreply@blogger.comtag:blogger.com,1999:blog-1249615655314260587.post-25195557966127676642016-02-27T15:02:04.860-05:002016-02-27T15:02:04.860-05:00Thanks for reading!
Note that the Polysix has num...Thanks for reading!<br /><br />Note that the Polysix has numerous spots where it boosts the high frequencies. I only address one of the spots in this post. There are several others, mostly on the KLM-368 Effects PCB. IMO, they are mostly aimed at overcoming the treble loss with each pass through the LM13600 OTAs. <br /><br />IMO, it's the heavy use of LM13600 stages is the real culprit for loss in audio fidelity and noisiness (oops...I mean "vintage flavor) in the Polysix. If you really want to clean up the sound, do a quick trial and take out the audio signal prior to the Effects PCB. It's amazing how much cleaner and quieter it is.<br /><br />ChipChiphttps://www.blogger.com/profile/10352943033779293161noreply@blogger.comtag:blogger.com,1999:blog-1249615655314260587.post-21588836014569798612013-07-21T20:15:42.267-04:002013-07-21T20:15:42.267-04:00Tempting...
I'm personally not too keen on the...Tempting...<br />I'm personally not too keen on the raspy, but the reduced noise and sharper enveloppe seem interesting. So that might be the solution!<br /><br />BTW, great analysis!<br />I wish I had your skills and knowledge in electronics. I have a few good ideas but I have no idea how to implement them yet...<br />Slowly learning! And following your posts really helps me, so thanks again for sharing!<br />-SOSSynth0Spherehttps://www.blogger.com/profile/02794675153895684149noreply@blogger.com