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A New Hybrid from Indeed Hi-Fi Labs: does this look fun? - Page 18

post #256 of 355
Quote:
Originally Posted by FallenAngel View Post
KZ are not bipolar, why not just go with the Nichicon ES, they're made for this application and don't cost too much.
Cause I had the KZ's and was impatient.

Mouser carries the Nichicon ES: UES1C102MHM Nichicon Aluminum Electrolytic Capacitors - Leaded
post #257 of 355
Found this at mouser....might make a decent small upgrade on the power filter cap?
4700uF 25V Nichicon KW
UKW1E472MHD Nichicon Aluminum Electrolytic Capacitors - Leaded
post #258 of 355
Quote:
Originally Posted by i_djoel2000 View Post
im confused with all the capacitance and voltage specs. should i go with higher capacitance and higher voltage caps?
can anyone answer this question?
post #259 of 355
Quote:
Originally Posted by FallenAngel View Post
KZ are not bipolar, why not just go with the Nichicon ES, they're made for this application and don't cost too much.
Looks like the ES would fit between the volume control pot and the mini-out jack on the Indeed but not on my Bravo. I ordered Nichicon Muse FG 1000mfd 16v for the Bravo and a couple more for the Indeed since I was already paying shipping. The FG's are a little smaller diameter than the ES or KZ.
post #260 of 355
Quote:
Originally Posted by i_djoel2000 View Post
can anyone answer this question?
Well, the higher voltage and capacitance the cap, the bigger it's gonna be. the amp is stable and the power supply is 24V from a switch mode PSU, The voltage spec of the caps seem fine; If the cap you are replacing says 16v then go with 16V otherwise you could start heading into "THIS CAP WONT ******* FIT" problems. as for capacitance values, the only one I would personally change is the power smoothing cap. It's a 2200Uf and on the Bravo is a much larger 6800uF (4400uF would also be an improvement and wouldnt be as large), IMHO a far better value for this application BUT NOT CRUCIAL.
IF you really must play, swap out the two 1000uF caps for some audio rated ones as done on an earlyer post but be warned... BAD JOOJOO MY HAPPEN SO BE IT ON YOUR HEAD

Im afraid thats all the help i can offer. my interest in electronics is only a passing one...

enjoy

I am still hunting for a couple of cheap valves to roll so Im not changing anything till i sort that out.
post #261 of 355
Wouldn't one go with the 25v caps since the PSU is 24v? Probably a stupid question, I don't have much experience with this.

Need you guys to agree on how to switch which caps for what!
post #262 of 355
The 2 electrolytic output caps only see around 10V so the 16V caps are fine. The power smoothing cap is the one that must be at least 25V
post #263 of 355
Quote:
Originally Posted by gurusan View Post
The 2 electrolytic output caps only see around 10V so the 16V caps are fine. The power smoothing cap is the one that must be at least 25V
what if i change the power caps to 50v one? will it break the system?

what do you think about changing the output caps to NICHICON MUSE ES 1000uF 25VDC BI POLAR CAPACITOR?
post #264 of 355
Quote:
Originally Posted by i_djoel2000 View Post
what if i change the power caps to 50v one? will it break the system?
No, It will not break the system but you will have a hard job fitting a 50v cap in the place of what ever is there already, I think.
post #265 of 355
Quote:
Originally Posted by i_djoel2000 View Post
what do you think about changing the output caps to NICHICON MUSE ES 1000uF 25VDC BI POLAR CAPACITOR?
16VDC would fit easier a la gurusan... That's what he put in his mod.
post #266 of 355
Quote:
Originally Posted by Judge Buff View Post
16VDC would fit easier a la gurusan... That's what he put in his mod.
really?

but if you look closely on the indeed picture, the maker also use 1000uF and 25V capacitor on the output caps CMIIW
post #267 of 355
Yeah but if you measure the voltage it's only a tad under 10V
post #268 of 355
Quote:
Originally Posted by i_djoel2000 View Post
really?

but if you look closely on the indeed picture, the maker also use 1000uF and 25V capacitor on the output caps CMIIW
Really for truly... and gurusan has his modded to 16vdc and 1000uf and nerd1949 modded his to Nichicon KZs with 470uf (but I can't suss out the VDC spec). Remember that you said that changing these caps would help you "anticipate" the mids or something like that and solve the recessed mids... Well, people are changing them out with different caps.

The data sheet for the es series (here) shows that the 25vdc 1000uf is 31.5mm tall. I think that's just a mm or 2 too tall for mine anyway... CMIIW right back at ya!

Look... not only does the component need to fit electronically, it must fit physically unless you intend to remove the top acrylic plate in this instance...
post #269 of 355
Quote:
Originally Posted by Judge Buff View Post
Really for truly... and gurusan has his modded to 16vdc and 1000uf and nerd1949 modded his to Nichicon KZs with 470uf (but I can't suss out the VDC spec). Remember that you said that changing these caps would help you "anticipate" the mids or something like that and solve the recessed mids... Well, people are changing them out with different caps.

The data sheet for the es series (here) shows that the 25vdc 1000uf is 31.5mm tall. I think that's just a mm or 2 too tall for mine anyway... CMIIW right back at ya!

Look... not only does the component need to fit electronically, it must fit physically unless you intend to remove the top acrylic plate in this instance...
thanx for the in-depth comment..

but from what i read from gurusan's comments..he said he hasn't noticed any significant improvements on the sound after he changed his caps, that's why i started to wonder whether it is a problem of unsynergy caps or not. now im thinking of changing the power caps to higher capacitance but still in 25 volt range. Let say 4700uF 25V Electrolytic Capacitors. do you guys think its a good call?
post #270 of 355
Quote:
Originally Posted by i_djoel2000 View Post
thanx for the in-depth comment..

but from what i read from gurusan's comments..he said he hasn't noticed any significant improvements on the sound after he changed his caps, that's why i started to wonder whether it is a problem of unsynergy caps or not. now im thinking of changing the power caps to higher capacitance but still in 25 volt range. Let say 4700uF 25V Electrolytic Capacitors. do you guys think its a good call?
That's what I plan on doing... I've already got it on order. I also have a 35V 4700uf coming. I'll decide which one after they get here. I got KZs 1000uf coming along with the ES because nerd1949 appears to like his KZ output. I also have a pair of 16V 2200uf ES coming because It appears they'll fit if I choose to use them.

I don't hear anything indicative of a lack of "synergy" in my amp. gurusan also says that he didn't have much time on his amp pre cap swap to compare the result to.

I like my amp now. I like rolling different tubes to achieve different sound presentations. Some tubes are more spacious. Some are stronger bass/mids/highs. Some are very balanced, but some are very mid forward. The amp changes when the tube changes. It all sounds good... different, but good. Some tubes have a slight hum, but most are silent. It doesn't hiss with either of the sources I use - ever. If all that can sound any better by swapping out these caps, I'm all for it.

If changing the caps doesn't somehow improve the basic presentation (I can't qualify how it could be improved though), I'll be somewhat disappointed for all the effort, but my amp sounds good now.
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