Maintaining a Constant 14 Volts. - Car Audio | DiyMobileAudio.com | Car Stereo Forum

Reply
 
LinkBack Thread Tools Display Modes
Old 09-20-2010   #1
 
DIYMA Novice
Join Date: Feb 2010
Location: Jacksonville FL
Age: 27
Posts: 324

Rep Power: 84 jf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enough


iTrader: (0)



Default Maintaining a Constant 14 Volts.

First off the Car is a 2008 Altima. I will be running 2 amps in my system. Both are sundown. A 100.4, and 1200rms mono. The mono makes the 1200 watts at 12.8 volts, and it is supposed to do 1500rms and 14.4 volts. So now I want to get a constant 14.4 volts to that amp. I believe the stock alternator in the Altima is somewhere around 110-130 amps. So would just doing a big 3, and maybe adding another battery in the trunk do this for me? I know a new alternator would help a lot, but it would be nice to avoid spending that 5 or 6 bills. What do you guys think.
jf2oo6 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 09-20-2010   #2
DIYMA 500 Club
 
Banned
Join Date: Jun 2007
Location: Up to 11 different dimensions
Posts: 12,569

Rep Power: 0 Oliver will become famous soon enoughOliver will become famous soon enoughOliver will become famous soon enoughOliver will become famous soon enoughOliver will become famous soon enoughOliver will become famous soon enoughOliver will become famous soon enough


iTrader: (19)



Default Re: Maintaining a Constant 14 Volts.

156.1 dB -- One Sub / No-Wall / 12v

Quote:
Man I am excited... 155.9 was my best before with two Nightshade 15s and four 3000s on an 18v system.

Without an adjustable voltage regulator ... no way !

Quote:
output voltage adjustable over a 1.2 to 37 V range. ...

Last edited by Oliver; 09-20-2010 at 03:12 PM..
Oliver is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #3
DIYMA 500 Club
 
DIYMA Loyalist
Join Date: Mar 2008
Location: Aurora, Co
Age: 33
Posts: 3,681

Rep Power: 303 gijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond reputegijoe has a reputation beyond repute


iTrader: (5)



Default Re: Maintaining a Constant 14 Volts.

How much are you willing to invest for 300 watts? The difference between 1200watts and 1500 isn't audible.

2005 Subaru Impreza RS:
Pioneer P99RS / Alpine PDX-V9 and PDX-F4 / Melodic Acoustic Euphoria 6.5 / Pioneer Stage 4 midrange / LPG / 2x AE SBP 15
gijoe is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #4
DIYMA 500 Club
 
Cruzer's Avatar
 
DIYMA Enthusiast
Join Date: Jul 2010
Location: La Vergne, tn
Posts: 2,479

Rep Power: 99 Cruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished road


iTrader: (2)



Default Re: Maintaining a Constant 14 Volts.

Quote:
Originally Posted by gijoe View Post
How much are you willing to invest for 300 watts? The difference between 1200watts and 1500 isn't audible.
i agree, just do the big 3 as its not that much $ and be done with it.

i have a 130amp alt, stock battery, 2 amps, i get 14.4 volts to my AQ1200D and its running @1ohm 1200 watts or more and i dont even have the big 3 done...

Head Unit: Pioneer 800PRS | Tweets: Dayton DC28F Silk | Mids: Dayton RS180 | Speaker Amp: Infinity Kappa Four | Sub: Dayton HO 15" | Sub Amp: AQ1200D
http://www.youtube.com/watch?v=QIKk6...ature=youtu.be
http://www.diymobileaudio.com/forum/...b-install.html
Cruzer is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #5
DIYMA 500 Club
 
MarkZ's Avatar
 
DIYMA Addict
Join Date: Dec 2005
Location: ..........................................
Posts: 6,850

Rep Power: 206 MarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really niceMarkZ is just really nice


iTrader: (4)



Default Re: Maintaining a Constant 14 Volts.

Increase your idle to about 1200rpm

Quote:
Originally Posted by subwoofery
What I wanted to say is that amps ... sound the same.
MarkZ is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #6
 
DIYMA Novice
Join Date: Feb 2010
Location: Jacksonville FL
Age: 27
Posts: 324

Rep Power: 84 jf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enoughjf2oo6 will become famous soon enough


iTrader: (0)



Default Re: Maintaining a Constant 14 Volts.

Well I dont want to go crazy trying to get 300 watts. This thread was pretty much asking what the options are to achieve the 14 volts. Just trying to see if someone has a simple, cost efficient solution.

Do you guys think adding another battery would help? Can my stock alt charge 2 batteries ok?
jf2oo6 is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #7
DIYMA 500 Club
 
89grand's Avatar
 
DIYMA Addict
Join Date: Nov 2006
Location: Phoenix, AZ
Posts: 5,494

Rep Power: 181 89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice89grand is just really nice


iTrader: (4)



Default Re: Maintaining a Constant 14 Volts.

Well, instead of trying to get a constant 14 volts which is not an easy task, you could sell those amps and run some amps with a regulated Power supply like old School PPI's, or maybe one of the few new ones that have regulated supplies (don't know many news ones that do), then your Power output wouldn't be dependent on input voltage, at least not from about 10.5 volts and up.
89grand is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #8
 
DIYMA Novice
Join Date: Jan 2010
Location: New England
Posts: 267

12V Company:
Sensata Technologies
Position:
Electrical Design Engineer

Rep Power: 84 matt1212 will become famous soon enoughmatt1212 will become famous soon enoughmatt1212 will become famous soon enoughmatt1212 will become famous soon enoughmatt1212 will become famous soon enoughmatt1212 will become famous soon enough


iTrader: (0)



Default Re: Maintaining a Constant 14 Volts.

Quote:
Originally Posted by gijoe View Post
How much are you willing to invest for 300 watts? The difference between 1200watts and 1500 isn't audible.
Agreed. Doubling Power to a Speaker only increases the spl by 3bd's and your not even close to that. Thats a marketing technique that companies use to make the amp sound better. The alternator runs at 14v but the battery and rest of the system are designed to stay at 12. I wouldn't worry about it. Besides, if you were able to get it to happen, you take a chance of frying all your cars other electrical components.
matt1212 is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #9
DIYMA 500 Club
 
DIYMA Addict
Join Date: Jun 2007
Location: Mid Michigan
Posts: 6,223

Rep Power: 180 sqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the rough


iTrader: (1)



Default Re: Maintaining a Constant 14 Volts.

It is easier to get a larger amp. The extra battery will only help if you are dropping under 13v, or playing with Car off, but I think a good idea. You will overcharge the batteries and all that too, just get more amp. Voltage regulators run higher the cooler they are, my Car goes over 14.5 all the time in the winter.

Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
sqshoestring is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #10
 
SoundChaser's Avatar
 
DIYMA Novice
Join Date: Apr 2009
Location: Milky Way
Posts: 475

Rep Power: 101 SoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the roughSoundChaser is a jewel in the rough


iTrader: (1)



Default Re: Maintaining a Constant 14 Volts.

40 farads would do it.
SoundChaser is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #11
DIYMA 500 Club
 
Knobby Digital's Avatar
 
In Stereo
Join Date: Aug 2008
Location: LA
Posts: 1,136

Rep Power: 110 Knobby Digital will become famous soon enoughKnobby Digital will become famous soon enoughKnobby Digital will become famous soon enoughKnobby Digital will become famous soon enoughKnobby Digital will become famous soon enoughKnobby Digital will become famous soon enough


iTrader: (13)



Default Re: Maintaining a Constant 14 Volts.

Missing Link Audio

Dunno anything about them.


A speaker is only as good as the logo on its dustcap.
^^^^^^^^^^^^^^^^build log enclosed^^^^^^^^^^^^^^^^
Knobby Digital is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #12
DIYMA 500 Club
 
t3sn4f2's Avatar
 
DIYMA Addict
Join Date: Jan 2007
Location: Miami, FL
Age: 40
Posts: 8,292

Rep Power: 212 t3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to allt3sn4f2 is a name known to all


iTrader: (0)



Default Re: Maintaining a Constant 14 Volts.

Difference between 1200 and 1500 watts? 1dB AT MOST under ideal Power supply conditions.

Decibel Watt Online Calculator

Play you system loud WITH MUSIC and HAVE SOMEONE lower the sub by 1dB without telling you. See if you can CONSISTENTLY tell when they do it. If you can't, then there is no point in changing anything since you won't have anything to gain.
t3sn4f2 is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #13
DIYMA 500 Club
 
cubdenno's Avatar
 
DIYMA Steel manipulator
Join Date: Nov 2007
Location: Illinois
Age: 45
Posts: 2,450

Rep Power: 133 cubdenno will become famous soon enoughcubdenno will become famous soon enoughcubdenno will become famous soon enoughcubdenno will become famous soon enoughcubdenno will become famous soon enoughcubdenno will become famous soon enoughcubdenno will become famous soon enough

Send a message via ICQ to cubdenno

iTrader: (3)



Default Re: Maintaining a Constant 14 Volts.

The MLA device listed above may help. What is going to happen is the alternator will provide all the current (amps) at its voltage 13.6-14.4 v.

At the point the audio system along with the Car accessories draw more than the alternator is able to provide the supply comes from the battery at ~12.6 volts. this voltage will drop lower continuously if you are putting sustained loads in excess of the alternators capacity.

Upgrade the grounds. Don't worry about the positive from the alternator.

Don't worry about upgrading amps to something with a regulated Power supply. The draw from a bunch of class AB amps putting out the Power you have on tap now would be even worse on your electrical. Plus you have the amps already. And they are great amps.

I run a bit more power than you on a stock electrical. Upgraded battery. Good cable runs. Upgraded grounds. I don't listen to a lot of rap but regular music never comes close to being a problem.

It is very easy to conflate cause and effect that are unrelated in audio design. In fact, the entire audiophile industry is based upon this ease of fallacy.

"Heck yeah you can spend more to get the same sound."
cubdenno is offline   Reply With Quote Quick reply to this message
Old 09-20-2010   #14
DIYMA 500 Club
 
Cruzer's Avatar
 
DIYMA Enthusiast
Join Date: Jul 2010
Location: La Vergne, tn
Posts: 2,479

Rep Power: 99 Cruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished road


iTrader: (2)



Default Re: Maintaining a Constant 14 Volts.

I don't understand. I looked up my alternator what I read I have a 136amp alternator.

When I have truck running, hard hitting song, volume cranke­ my voltage at the amp jumps from 14.2 to 14.4.

I have done anything to my electrical, not even a simple big 3.

Maybe I got a bigger alt than I think?

Head Unit: Pioneer 800PRS | Tweets: Dayton DC28F Silk | Mids: Dayton RS180 | Speaker Amp: Infinity Kappa Four | Sub: Dayton HO 15" | Sub Amp: AQ1200D
http://www.youtube.com/watch?v=QIKk6...ature=youtu.be
http://www.diymobileaudio.com/forum/...b-install.html
Cruzer is offline   Reply With Quote Quick reply to this message
Old 09-21-2010   #15
DIYMA 500 Club
 
DIYMA Addict
Join Date: Jun 2007
Location: Mid Michigan
Posts: 6,223

Rep Power: 180 sqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the roughsqshoestring is a jewel in the rough


iTrader: (1)



Default Re: Maintaining a Constant 14 Volts.

Voltage regs are imperfect, they change with temperature and load. When it senses a load it may produce slightly higher voltage, but you can be sure when you exceed the capability of the alternator voltage will drop. When you have too small of wire, voltage at the amp will drop but not as much at the battery. If this does not happen with the system at max volume playing material with bass in it, well then you have a large enough alternator and wire, at least until you turn other stuff on in the car.

Pioneer 880PRS~boston comps/alpine coax on Kappa 4 Z~back to Alpine mrd-m500 v12 on pyle 15s IB
sqshoestring is offline   Reply With Quote Quick reply to this message
Old 09-21-2010   #16
DIYMA 500 Club
 
Cruzer's Avatar
 
DIYMA Enthusiast
Join Date: Jul 2010
Location: La Vergne, tn
Posts: 2,479

Rep Power: 99 Cruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished roadCruzer is on a distinguished road


iTrader: (2)



Default Re: Maintaining a Constant 14 Volts.

Quote:
Originally Posted by cajunner View Post
then you should have no more than 13.8V at the amp after a warm-up/charging phase is complete. When you first crank up and for several minutes, the voltage regulator brings the voltage up to 14.4V, or 14.6V, but not much higher than that.
This must have been it. i started the truck and cranked the volume. after the truck's rpms went down then i tested it. probably a whole minute after starting it but what ur saying is everyones Car does that right after being started.

guess i need to drive a little and after i get home, dont turn it off, and test it again?

Head Unit: Pioneer 800PRS | Tweets: Dayton DC28F Silk | Mids: Dayton RS180 | Speaker Amp: Infinity Kappa Four | Sub: Dayton HO 15" | Sub Amp: AQ1200D
http://www.youtube.com/watch?v=QIKk6...ature=youtu.be
http://www.diymobileaudio.com/forum/...b-install.html
Cruzer is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Car Audio | DiyMobileAudio.com | Car Stereo Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Location
Where you live
First name
Last name
Do you work in the 12 Volt industry?
Do you work in the 12 Volt industry?
Youtube Channel
Enter Your Youtube Username, And It will Be Linked To In Your Posts!
12V Industry - Company Name
Your company name.
12V Industry - Your Position
Your position in your company.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 11:24 PM.


Powered by vBulletin®
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Powered by vBadvanced CMPS v3.2.3
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Ad Management by RedTyger

Home | User CP | Members List | New Posts | ITrader | Faq | Post Spy