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In Reply to: RE: My experience so far with ferrite/cap filters on the P24 and P4 posted by hfavandepas on August 08, 2011 at 09:34:52
Mark I am interested is seeing a better picture(if its not too much trouble) of where you cut some plastic off the P24 extension connector to solder caps. I've gotten my extension cables and I need to solder some caps onto it.I've got some caps stuffed into it and so now I have a true pi filter which does do a better job of filtering but the stuffing is getting crowded.
Sonics so far: less bright and a lot less edgy on some music files...better dynamics but a bit of a lower mid upper bass suckout (which I easily fixed with my crossover points/volume settings). Net/net better sonics after all the adjustments.
Edits: 08/13/11 08/13/11Follow Ups:
Hi Theo,
Here’s a picture.
Van on filtering, demping, ect
Although since I’m using a very small SilverStone SST-ML03B HTPC-case for already 4 months now, I still have still plenty of room inside the case for the P24 with 7 ferrites for ribbon cables clamped onto the P24 extension cable.
I use another P24 extension cable (with 3 extra black square ferrites on it. More is always better :-) ) too reach the P24 connector on the MoBo again. This way the P24 with flat-ferrites can be laid on the bottom of the case in parallel with the MoBo. Using this extra P24 extension cable allows me too efficiently use the space that is in front of the mobo. See picture.
Van on filtering, demping, ect
Mark
fully optimized cMP2 PC -> ESI Juli@ -> Van den Hul Optocoupler MkII-> Lavry Black DA10 -> XLR Mogami Gold -> Klein & Hummel O300
It looks like you got a real clean cut on the plastic which I have not been able to do. Hate to keep bugging you but what kind of tool did you use?
Hi Theo,I used such a knife. I think in the US they are also called ‘Stanley knife’
Van on filtering, demping, ect The trick is: first cut in at all 4 corners.
Van on filtering, demping, ect You than make a cut on the inside along the sides like this.
This way you separate the plastic outside from the inner plastic deviding sections.
Van on filtering, demping, ect
After that, you can cut off the plastic strip on both sides. Take it easy. You may need a few strokes too finally cut all the way through the plastic on the side. See picture.
Van on filtering, demping, ect Mark
fully optimized cMP2 PC -> ESI Juli@ -> Van den Hul Optocoupler MkII-> Lavry Black DA10 -> XLR Mogami Gold -> Klein & Hummel O300
Edits: 08/13/11
Ok Stanley did the trick. I had bought 2 p24 extensions one was in cmp^2 with caps stuffed here and there and ferrites galore. As reported it sounded good. So in the process of operating on the other p24 cable to have access to the metal .. for soldering I shut the system off and pulled a few of the caps off the p24 in the sys (to solder them on the other p24). When I turned the system back on it sounded dull and grainy and closed down. I missed the caps...even though it was only temporary. Anyway once I fitted the spare p24 with soldered caps and ferrites and put it back in the system I was not prepared for the sq pop. Wow very, very nice! I finally see what you were saying Mark. Sound space bigger, deeper highs quick but integrated with the mids (hard to accomplish imo). And the bass was so much richer,deeper and tuneful. Its one of those things where everything sounds great. I played all my favorites and they never sounded better.A smashing success...thanks again Mark!!!
Edits: 08/14/11
Hi Theo,
Good too hear you finally got results!
Did you also put a filter on the P4?
Cleaning the power too the P4 will also result in better sound quality.
Cleaning the power of the P4 with this type of filter is very easy.
- Take a P4 extension cable and 1 or 2 ferrites.
- make 4 or 5 turns around the ferrites (as many turns as the length of the P4 extension cable allows)
- put caps before and after the ferrites.
And again you will have a very nice sound quality improvement!!
Mark
fully optimized cMP2 PC -> ESI Juli@ -> Van den Hul Optocoupler MkII-> Lavry Black DA10 -> XLR Mogami Gold -> Klein & Hummel O300
Yep I did it already...it is a nice improvement. Thanks again.
I'm starting to think that my implementation of the stuffed capacitors into p24 connectors was seriously handicapped from sounding right. There is so much better sound from the soldering that I believe my pushing of the caps into the p24 slots was not making proper contact or intermittent contact at best. Anyway for those who want to try this my recommendation is don't stuff, solder right from the beginning.
Again a big shout out to Mark for this excellent tweak!!
perfect...thanks again!
thanks
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