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Some of you may remember my postings on these two players. Well, I have another tweak for you. I had replaced 16 caps in my KI-Pearl (based on the Sa15)with values x10 bigger. Big change in the sound, damn good too. Now, I have one more change, the cap of the ref pin of the DAC. In the Sa15 it's C556, a 100uf cap. Now it's 1000uf, huge change in the sound. In focus all the way to the back of the sound field. In the Sa7 the cap is C208 but do C203 and C205 as well. Good Luck, bobwire
Follow Ups:
How can you put a 10X larger cap into the same space?
Did you replace original with same make/style?
Do you have any idea what makes a 10X larger cap sound better in EVERY position you've tried it? Are there positions where that strategy doesn't work?
I'm assuming these are electrolytic caps. Do the changes sound better immediately, or over a period of days? If days, how can you remember what it sounded like before? Is the difference that dramatic?
Peace,
Tom E
Hi, sorry it has taken so long to answer. The new caps(1000/16V) are smaller than they used to be. It was easy to find one at Digi-Key that would fit even if it was bigger than the original. Yes I do have an idea for why they sound better. This cap is the filter on a Voltage REF-pin. That means that a bigger value of cap means a steadier voltage reference, and better sound. And it got even better after a day or two. Everyone that has heard it has the same reaction saying that it has way more detail. Good Luck, bobwire
I doubt your findings, but simply out of curiousity, what kind of caps did you use for replacement?
thanks,
Stu
I can understand your doubt, but I have years of doing mods to just about every kind of electronics used in Audio. This mods comes after all the other mods in the system, so everyone could plainly hear it. The caps are Digi-Key P10253-ND 1000uf/16V radial. Good Luck, bobwire
If you link the title with the first sentence, it reads "Not that I doubt you."My apologies if you mistook it for doubting your mod. I really don't doubt it at all, but there are myrids of caps out on the market and it is good to know what kind of caps you used.
But thanks for your response and again, my apologies.
Stu
Edits: 01/06/13 01/07/13
It seems to me that when I chose that cap that I went for size first. It had to be a small dia. It didn't matter how tall. The lead spacing was right on, so no problem there. The internal resistance had to be the smallest for the size cap too. I've used this cap in my active crossover, pre-amp (Classe' CP-35), power amps (Classe' Ten), my old Sony NS9000, and laser disk player. All of these units and more have gotten their own caps on every power pin of every IC from the DAC on out. There are also a lot of 2200uf and 4700uf in there too. Good Luck, bobwire
The specs for that Panasonic cap. Been ordereing from Mouser recently and I have been gravitating to their Nichicon, UHE series. It sports very similar specs to the Panasonic in size and ESR and such.
Thanks again for the info.
Stu
Unclestu, it looks like you meant to say "I DON'T doubt your findings..."I have been wondering the same thing myself -- what kind of caps?
I've modified many components myself. Many times simply putting in larger caps (more uF) will be a trade off and an overall downgrade. The detail, soundstaging (in paticular) and dimensionality will be greatly enhanced, but there can be a trade off in speed, rhythm and tonal vibrancy. Using cheap caps can hurt speed, dynamics and cast a grey tonal monochromatic hue over everything. In most places, using a very high quality cap will benefit the music. Conrad Johnson makes some products without using electrolytics in ANY location. If I make the effort to mod a piece of gear, I use the highest quality part that will fit and I'm willing to pay for. I'm happy to say that I've still got a small supply of Black Gates here. :)
Thank you again for your report bobwire!
Edits: 01/03/13
Using just a few caps can hurt I agree, however I don't just use a few caps I do the whole thing, every stage. When you clean things up it does sound like it is slowing down, however it stops slowing down when you get to the pace of the music. Think of it this way, when the power supply moves, so does the image and detail, and outlines. I try to nail them down. It has worked for me I hope you will try it too. Good Luck, bobwire
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