i promise you that:

it definitely will sound bettar than stock but...
those nippon chemicon caps are gonna sound real bad on your set...


been there, done that =)

i bought some elnas last year


what blaupunkt car headunit looks like....

almost same stuff......


also to make your life easy =)
http://www.datasheetcatalog.org/datasheet/...ronics/1504.pdf

This post has been edited by beggarmaster2000: Mar 24 2011, 10:27 AM

Here's the list of the capacitors:
0.1uf 50v x1
0.47uf 50v x5
1uF 50v x3
2.2uf 50v x13
4.7uf 25v x4
10uf 16v x1
47uf 16v x1
100uf 16v x3
220uf 16v x1
1000uf 16v x2
10000uF 50v x1

So what is your recommendation? All ELNA? It's quite difficult to find all of them from the list, then which of them are the most important ones to buy first? Besides, I did notice there's red and black colours of ELNA, which is better? Thank you!

the red elnas are usually stargets... they are too expensive for this set
black and gold are usually silmics which are even more expensive....

my recommendations are based on cheap, good and easy to buy if you are msian

for 10000uf you can use rubycon,panasonic or nippon

for the rest you can buy yellow or blue elna cap
or panasonic (M symbol) purplelish (looks black) gold or metallic blue type

a mix will be good, you tweak whre you like according to taste
pana has more punchy bass property..but the metallic blue ones go way smooth
elna regulars have 'bright' property

them not too expensive and sounds good! =)

This post has been edited by beggarmaster2000: Mar 26 2011, 07:49 PM

what if... adding expensive caps into cheap speakers?

wiralution? when you sell the car at second hand dealer its still a wira not a evo 100

Hi all, I have a AL ACS295. The problem with my unit is that there is some pop and crackling sound coming out from the woofer now. And it is gradually getting louder and worse. I've opened up the PCBA to check for cold solder joints but they all seem fine. All caps look OK. Lost about what to do with it. Anybody has some ideas about fixing it or is there anyone who can fix it for me in Penang area? Either that or I'll just sell it off to any enthusiast who wants to keep it as collection. Bloody good speakers though and it has served me for more than 11 years.

but it has ferrari engine in it

Sorry for bothering you again, do you know the exact names & specifications of the things squared with red & yellow colours? To save time, I'd like to have them replaced as well as other capacitors. Thanks in advance!

I think there should be a "balance" in price/$$$ to do the "mod"... since modding is more about learning & self satisfaction instead of the money spend / hours needed to mod the speakers/circuits for them to "sound" better...

To get good quality sound .. too many many things that can be change/modify/improve ...

Source :- use higher quality recording / higher bit rate mp3 or lossless audio ( flac )
Engine :- Soundcard / DAC - use internal built-in soundcard, X-Fi or external USB DAC
Amp :- no changes
Capacitors :- use decent caps but not too expensive
Speakers cable :- use thick/low resistance and low cost cables ( UTP 5E copper is good & cheap )
Speakers - no changes

I feel we just choose the ones that bring the most increase in sound quality with the least cost / most satisfaction...

goo luck with your wira with ferari engine and 13 inch rims at the jpj and second hand car dealer hahaha =)

hmmn those caps bla bla its ok to keep them stock.... them not in signal path or critical just for stability
won't do any noticable difference in my opinion

but if you die also want to change them go shop at rsmalaysia and see what justify your set..

JPJ approves

To: beggarmaster2000

Since I'm going to confirm the order for some ELNA's caps later today, I did remember last time you'd suggested me replacing the 1000uF caps with 2200uF caps.

So can you tell me what will be the advantages & disadvantages of doing that? Thanks in advance!

This post has been edited by Tim_HKG: Mar 29 2011, 01:32 PM

Those large caps act as "power reserve" that might be needed during those high power bass output... *boom* *boom* *boom*

Read this :-
http://www.ehobbycorner.com/pages/tut_capacitors.html

AC Coupling:
The ability of the capacitor to pass AC signals while blocking DC signals is most often used in audio circuits, in order to allow opamps to work of a single supply potential. (or just to protect against DC inputs, which can be noisy)

Though it's too technical for me to understand, really thank you!

Besides, there's one 0.1uF 50V on my order list, I picked this one, also states 0.1uF 50V, but don't know whether it suits due to its relatively strange appearance. Is it just the same kind of caps? Thanks in advance!

upgrading from 1000uf to 2200uf improves the frequency range
means your sound will more separation lower bass, higher highs bla bla bla

you don't have to replace the 0.1uf just leave it as stock.... it doesn't do much....
you can go ahead to replace it. but i didn't bother to trace it. so i don't really know where it goes. but since the value is so insignificant.... i can live with it =)

and please, change your capacitor in stages! (the biggest one to the smaller ones)
power filter first!!!!
change 1 type of cap. test. see if works? hear what it does? then change again then test.... that way... you'll know the faults and learn what does it do!
DON'T go ALL IN at once... you'll be scratching your head asking us more questions later.

This post has been edited by beggarmaster2000: Mar 29 2011, 07:03 PM

A new set of caps has just arrived, I'll follow your instruction, change them in order, from the biggest uF down to the smallest value.

Where did you mail-order yr caps from ?

The red colours highlighted is most probably a metal film capacitor, while the yellow one is ceramic capacitors. It seems to be enough already, if you want for more then replace it to polypropylene one, especially the signal path.


Have fun modding

mail order from China.

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Added on April 2, 2011, 11:32 pmThank you so much! However, I don't even know their names & values for the purchase...shame!

This post has been edited by Tim_HKG: Apr 2 2011, 11:32 PM

never knew that have a Altec Lansing club in LYN before. Anywhere, VS4121 user here