a long read but great info on capacitors - Focus Fanatics
Focus Fanatics Ford Focus Forums
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Model Specific Discussions > Car Audio, SYNC, MyFord Touch & Electronics

Car Audio, SYNC, MyFord Touch & Electronics The Forum for the Ford Focus audiophiles. The place to chat about automobile sound systems, security systems, or show off your I.C.E.!
Sponsored By: GT Sound Control


Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 04-24-2013, 03:13 PM   #1
alaskanzx5
Focus Fanatic
 
alaskanzx5's Avatar
 
Join Date: Jan 2011
Fan#: 82699
Location: Covert/south haven, MI
What I Drive: 2000 silver zx3

Posts: 1,617
FF Reputation: 6 alaskanzx5 Good Standing Member
Buy-Sell-Trade Rating: (1)
a long read but great info on capacitors

tons of info from a lot of people in the car audio world. including someone that is one of the most knowledgeable people on car electronics. some real world testing with caps. the last 3-4 pages have the videos for the testing and the results of the testing. enjoy



http://www.stevemeadedesigns.com/boa...-story/page-12


__________________
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.
alaskanzx5 is offline  
    Reply With Quote
Old 04-25-2013, 05:10 AM   #2
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 3,602
FF Reputation: 20 freemind Great Standing Member
Buy-Sell-Trade Rating: (17)
I am a believer that caps are a band-aid for a larger issue.
__________________
133whp-126ftlbsTQ Eclipse CD8443,JBL Px300.4, JBL GTO7001, PPI 356cs, JBL p1024(Hooray!) SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is offline  
    Reply With Quote
Old 04-25-2013, 08:43 AM   #3
asting
Focus Enthusiast
 
Join Date: Apr 2012
Fan#: 98342
Location: Cleveland, OH
What I Drive: 2012, Tux Blk Met Focus 5d Sport

Posts: 462
FF Reputation: 1 asting Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by freemind View Post
I am a believer that caps are a band-aid for a larger issue.
So am I. Get a bigger alternator if you're having issues or downsize.
__________________
2012 SE Hatch - 5 Speed - Tuxedo Black
Engine: K&N Typhoon CAI, Magnaflow 2.25 exhaust 15072
Suspension: MS3 Springs, Focus electric RMM.
Audio: LC6i, Polk Audio db6501 front, db651s rear, db1040DVC sub, Rockford R600-5 Prime, Fatmat
asting is offline  
    Reply With Quote
Old 04-25-2013, 11:55 AM   #4
alaskanzx5
Focus Fanatic
 
alaskanzx5's Avatar
 
Join Date: Jan 2011
Fan#: 82699
Location: Covert/south haven, MI
What I Drive: 2000 silver zx3

Posts: 1,617
FF Reputation: 6 alaskanzx5 Good Standing Member
Buy-Sell-Trade Rating: (1)
a good electrical for any high output stereo starts with the alt and grounds. improve your grounds and get a nice sized alt ( as big as you can that is known to do good not ebay junk). then improving the power wire from alt to batt and batt to amp. if your pulling more then your alt can put out then your dropping down to battery voltage (12.6-12.7). add in enough high grade caps ( not cheap junk) and the caps will charge at the highest available voltage (alt, 14.4-14.8). the amp will then draw from the highest voltage with the least resistance. meaning the cap ( 18" or less from the amp). then the alt and then the batts. a good stout electrical wont drop below 13v, but adding in some caps could gain about 1v if done right. meaning more power to the amps from a closer source.

before I left ak I had a 1500.1bdcp, stock alt, simple interstate batt under the hood, interstate rv batt for extra storage, big 3, and a 10 farad Rockford cap. with out the cap installed my voltage was dropping to about 11volts ( song dependent ). music sounded good bass was deep. installed the cap and I wouldn't drop below 12 volts and the music was louder, cleaner and sounded deeper. the amp was getting a higher voltage and so was performing better. I also had a 250 amp alt that I installed and wouldn't drop below 13volts and that too gave me the same increase that the the added cap did.

conclusion, the higher the voltage you give your amp the better it performs. caps and alt sit at a higher voltage then batts, that is the benefit. it can cost more and if not done right will only be putting a band aid on the issue yes. but correctly done and will see a gain.
__________________
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.
alaskanzx5 is offline  
    Reply With Quote
Old 04-25-2013, 03:39 PM   #5
asting
Focus Enthusiast
 
Join Date: Apr 2012
Fan#: 98342
Location: Cleveland, OH
What I Drive: 2012, Tux Blk Met Focus 5d Sport

Posts: 462
FF Reputation: 1 asting Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by alaskanzx5 View Post
a good electrical for any high output stereo starts with the alt and grounds. improve your grounds and get a nice sized alt ( as big as you can that is known to do good not ebay junk). then improving the power wire from alt to batt and batt to amp. if your pulling more then your alt can put out then your dropping down to battery voltage (12.6-12.7). add in enough high grade caps ( not cheap junk) and the caps will charge at the highest available voltage (alt, 14.4-14.8). the amp will then draw from the highest voltage with the least resistance. meaning the cap ( 18" or less from the amp). then the alt and then the batts. a good stout electrical wont drop below 13v, but adding in some caps could gain about 1v if done right. meaning more power to the amps from a closer source.

before I left ak I had a 1500.1bdcp, stock alt, simple interstate batt under the hood, interstate rv batt for extra storage, big 3, and a 10 farad Rockford cap. with out the cap installed my voltage was dropping to about 11volts ( song dependent ). music sounded good bass was deep. installed the cap and I wouldn't drop below 12 volts and the music was louder, cleaner and sounded deeper. the amp was getting a higher voltage and so was performing better. I also had a 250 amp alt that I installed and wouldn't drop below 13volts and that too gave me the same increase that the the added cap did.

conclusion, the higher the voltage you give your amp the better it performs. caps and alt sit at a higher voltage then batts, that is the benefit. it can cost more and if not done right will only be putting a band aid on the issue yes. but correctly done and will see a gain.
It has more to do with the rate at which you listen to music. If you want to blast music every half hour on a long drive, then yes a cap would work. But you need time to charge the cap later. It doesn't really increase the total output of your system over a period of time unless you have periodic breaks to let it charge and take advantage of the full output of your alternator.
__________________
2012 SE Hatch - 5 Speed - Tuxedo Black
Engine: K&N Typhoon CAI, Magnaflow 2.25 exhaust 15072
Suspension: MS3 Springs, Focus electric RMM.
Audio: LC6i, Polk Audio db6501 front, db651s rear, db1040DVC sub, Rockford R600-5 Prime, Fatmat
asting is offline  
    Reply With Quote
Old 04-25-2013, 04:35 PM   #6
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 3,602
FF Reputation: 20 freemind Great Standing Member
Buy-Sell-Trade Rating: (17)
Many things come into play in this subject. Like when I ran my old Xtant 3300x, I had no issues with current because that amp is a tank with lots of on-board capacitance. I never should have sold it.

When do you do most of your listening? Key on or, key off? That makes a diffidence between using a big Alt or extra batteries.

Caps can work of course but, IMO that is because of small on-board capacitance, too much wiring resistance, insufficient ground and the like.
__________________
133whp-126ftlbsTQ Eclipse CD8443,JBL Px300.4, JBL GTO7001, PPI 356cs, JBL p1024(Hooray!) SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is offline  
    Reply With Quote
Old 04-25-2013, 04:36 PM   #7
alaskanzx5
Focus Fanatic
 
alaskanzx5's Avatar
 
Join Date: Jan 2011
Fan#: 82699
Location: Covert/south haven, MI
What I Drive: 2000 silver zx3

Posts: 1,617
FF Reputation: 6 alaskanzx5 Good Standing Member
Buy-Sell-Trade Rating: (1)
And that is why its install dependent. Im not wanting any aurguing just trying to bring more info with some real world testing to people that would like to know more.
__________________
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.
alaskanzx5 is offline  
    Reply With Quote
Old 04-25-2013, 04:39 PM   #8
freemind
Vince your Moderator
 
freemind's Avatar
 
Join Date: Jul 2009
Fan#: 67513
Location: Seattle, WA
What I Drive: 2002 ZX3 and a 2010 Focus SE (Work)

Posts: 3,602
FF Reputation: 20 freemind Great Standing Member
Buy-Sell-Trade Rating: (17)
No worries man. This has been a debated subject for the last 20 or so years. I appreciate you bringing this to the site. It is good info and I am sure it is useful.

I would add the Rep point but it will not let me.
__________________
133whp-126ftlbsTQ Eclipse CD8443,JBL Px300.4, JBL GTO7001, PPI 356cs, JBL p1024(Hooray!) SubThump enclosure, RAAmat BXT, Damplifier Pro

Hatch Nation #140
Caeci caecos ducentes
freemind is offline  
    Reply With Quote
Old 04-25-2013, 04:47 PM   #9
alaskanzx5
Focus Fanatic
 
alaskanzx5's Avatar
 
Join Date: Jan 2011
Fan#: 82699
Location: Covert/south haven, MI
What I Drive: 2000 silver zx3

Posts: 1,617
FF Reputation: 6 alaskanzx5 Good Standing Member
Buy-Sell-Trade Rating: (1)
All the real world testing that can be done the better. And the easier for people to find the info the better.
A good electrical should always have a big enough alt (or the biggest that wil fit), a batt bank, cap(s) and of course some really well planned and upgraded wiring. If there is a chance something can increase your electrical I say try it.
I personally believe that a good electrical can benefit from a an added cap or 2. Just because it allows your amps to draw its power from a closer source.
__________________
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.
alaskanzx5 is offline  
    Reply With Quote
Old 04-25-2013, 04:51 PM   #10
BLRich1
Nope, Chuck Testa
 
BLRich1's Avatar
 
Join Date: May 2005
Fan#: 22758
Location: Lincoln, NE
What I Drive: '03 Red EAP SVT, '04 Silver SVT

Posts: 5,938
FF Reputation: 17 BLRich1 Great Standing Member
Buy-Sell-Trade Rating: (6)
The only reason I have one is because I won it. I have it and a small extra battery, I couldn't tell you which one is more effective.
__________________
My Rides:
'13 Ingot Silver Escape Titanium AWD
'03 Infra Red EAP SVT, #1687, 1 of 101
'04 CD Silver SVT, #877, 1 of 135 May 2011 ROTM, FF11: Best Display, Best of Show; AFN12: Best SVT, Best Audio, Finest Five, Carlisle Nifty Fifty
BLRich1 is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 03:08 AM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX. You can find all Ford Focus related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.