kl0wn Posted April 21, 2013 Report Share Posted April 21, 2013 If you watch his previous videos it gives answer to your questions. There's a distortion in the signal that triggers the DD-1, but it's not clipping! I never said anything about clipping. Guys watch Tony D'Amore's other videos to see why the distortion light is on. The Jeep has an issue with the headunit doing some stupidly low distortion at medium to high volume. But the distortion wouldn't effect the runs because every run was done exactly the same, so if it threw off one run it would do every run. Gotcha. I didn't expect it to affect the results since it happened every single time, was just wondering what was up with the distortion light always coming on. Quote 06 Mini Cooper S Sundown, SoundQubed Cadence, XS Power 151s Sealed 155s Outlaw Windshield @ 37hz Link to comment Share on other sites More sharing options...
snafu Posted April 23, 2013 Author Report Share Posted April 23, 2013 In summary: 1. Quality capacitors DO work - and a few companies continue to offer them. Hint: if it's chrome, comes in a blue felt lined box, has a volt meter, and you can get it for $49 - PASS. 2. In order to achieve the best results, locate the capacitor as close to the amplifier as possible, preferably within 18 inches. Consider that there are actually TWO voltages available in a vehicle: 1. The output voltage of the alternator (13.8 - 14.4 Volts typically) 2. The nominal voltage of the battery (12.6 - 12.7 Volts typically) Since capacitors store charge and oppose changes in voltage, here's actually what's going on: - The capacitor, when connected and charged, stores charge at the nominal voltage of the battery - As the vehicle is started and runs, the capacitor INSTANTLY is able to store charge at the output voltage of the alternator - As your amplifier draws current, it takes it from the place of least resistance - in order, that is: 1. From the capacitor (closest source of voltage, and highest voltage potential) 2. From the alternator (highest voltage potential) 3. From the battery (lower voltage potential) Look at it like this - it's the DELTA between 14.4 and 12.6 Volts that is the deal. Why waste that 1.8 Volts of goodness when you can USE it? Keep in mind that amplifiers "gulp" current based on the frequency at which the power supply operates. This is typically 30,000 to 40,000 times per second. Since 1986* I have personally used capacitors in my own audio systems and for good reason. I fully expected to see positive results from the addition of a capacitor. I must admit, I was pleasantly surprised at just how much bang one gets from the 1 Farad capacitor. Honestly, there is simply no reason I can think of NOT to use one. Companies that have elected to sell inferior (IE - CRAP) capacitors have given the word capacitor a black eye. That, along with plenty of mis-information on this topic by keyboard experts, has conspired to paint a non-factual picture of the true purpose of the capacitor in car audio applications. Now that the AD-1 has proven that capacitors do indeed have their place, it's up to you to spread the word. And FWIW, although I did not mention it in the video, the capacitors in the RF 100 Farad capacitor I showed are carbon based "supercaps" - a technology that was borrowed from the power generation industry. To the best of my knowledge, they were the first of their kind available in the car audio industry. Now, they are but a distant memory. * Yes, 1986 - that is no misprint or exaggeration! Only Wayne Harris beat me to it and I had no idea who he even was then. 5 Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
Hellbilly429 Posted April 24, 2013 Report Share Posted April 24, 2013 Dang Snafu, appreciate the knowledge very much! Quote 2018 Honda Civic Sport Hatchback (build in progress) NVX Sound Deadener (Front Doors) Stinger FAST Rings Stock Electrical SSA Evil 6.5's Front Speakers Stock rear speakers MB Quart ONX4.80 speaker amp Rockford Fosgate T-1500bdcp DC Level 4 12" D1 @ 2-ohm Box In Design Stage Stock RadioMy Build Log Link to comment Share on other sites More sharing options...
alaskanzx5 Posted April 24, 2013 Report Share Posted April 24, 2013 ill pass this on as much as I can. I personally have been using a 10farad Rockford cap for a while now and I can hear a difference with and with out it. not to mention a good amount more voltage drop with out the cap. Quote t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
SnowDrifter Posted April 24, 2013 Report Share Posted April 24, 2013 Well after seeing the results of this I'm going to build myself an 850 farad cap bank and see what sort of results I get. Tony C, Tony D, Juan, Steve: If you want to do some testing with it let me know. I'd be curious to see what sort of results you'd get on the dyno going with something even bigger Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
__d_a_v_i_d__ Posted April 24, 2013 Report Share Posted April 24, 2013 Okay. Can we now get that same test, but instead of cap and no cap test.... now cap (parallel with front batt) ___VS___ same price/value battery test. (parallel with front bat) I dont think legit builders rule out caps cause their crap, they rule them out cause batts cost less and are better in their bigger builds (5K+) 10 farad fosgate = $453 . vs xs power xp 3000 = $489 These are prices directly from their sites... Now as a secondary power reserve. wouldnt the XS 3000 be more effective than a 10 farad cap ? and they cost near the same... 1 Quote Chevy Impala Shocker Sigs / TC Sounds 12s Sundown NS-1 | SAX 100.4 Sundown Neos | Dayton Audio Neos ETCCC ETCCC ETCCC My YouTube ---- Subcribe!! Link to comment Share on other sites More sharing options...
alaskanzx5 Posted April 24, 2013 Report Share Posted April 24, 2013 Okay. Can we now get that same test, but instead of cap and no cap test.... now cap (parallel with front batt) ___VS___ same price/value battery test. (parallel with front bat) I dont think legit builders rule out caps cause their crap, they rule them out cause batts cost less and are better in their bigger builds (5K+) 10 farad fosgate = $453 . vs xs power xp 3000 = $489 These are prices directly from their sites... Now as a secondary power reserve. wouldnt the XS 3000 be more effective than a 10 farad cap ? and they cost near the same... you have to remember cost of shipping to. that cap is way less in weight and shipping will be a good amount cheaper. plus the amount of room the caps take up compared to the batts. then in snafu's last post he said - As your amplifier draws current, it takes it from the place of least resistance - in order, that is: 1. From the capacitor (closest source of voltage, and highest voltage potential) 2. From the alternator (highest voltage potential) 3. From the battery (lower voltage potential) now isn't it a plus to get your power from something only 18" or less from you amp compared to the alt at the front of the car? or the batts that have a lower voltage potential? this thread isn't about caps vs batts. its about showing proof that caps do work and make a difference. the benefit of a cap like all audio installs is install dependent. the 1 farad per 1k watts is a general guideline, its not necessarily the golden rule to it. Quote t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
SnowDrifter Posted April 25, 2013 Report Share Posted April 25, 2013 Why is 1F per 1k the guideline? Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
alaskanzx5 Posted April 25, 2013 Report Share Posted April 25, 2013 (edited) Why is 1F per 1k the guideline? I don't know, its just what 90% of people that use caps go buy. Im running a 1500.1bdcp and a 400.4 so no more then 2k rms and have a 10 farad cap. also have a 250 amp singer alt and ill have a small batt bank to. going by the 1k watts per farad rule I have an extra 8 farads... I think that 1 farad per 500 watts would be a better guideline though. Edited April 25, 2013 by alaskanzx5 Quote t1500bdcp 2 t2d4 15" 1 t600.4 1 t400.2 1 set p1 tweets singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz. Link to comment Share on other sites More sharing options...
snafu Posted April 25, 2013 Author Report Share Posted April 25, 2013 Well, the 1 Farad capacitor actually outperformed the 100 Farad capacitor in the tone bursts - that with a 2,500 Watt amp. Quote Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.