possble new idea for audio settups?

yes new to the forums and soon new owner of a Toyota Scion xB.

my hobbies are mainly audio design and development and i got to thinkin one night about the Prius.


i started doing some research to find out more about the main battery supply and the piston based VVTI engine. knowing that the Prius depends highly on the main battery supply, i got to thinking about a aux. supply for the audio enthusiast.

i'm thinkin something small to medium in power/size, not much more then about 40-80amps of maximum pull. a com called "Kinetik Audio" has a battery modeled HC600 that is 14lbs in weight, 7 inches long by 6 inches in highth and 3 inches in width, that supplies a cold crank ability of 850amps while providing upto 20amps a hour.

the idea - if enough room is present, the use of a compact add-on altenator simular to the stock altenator of a Scion xB *it's VERY small and can be rewired from a standard 80amp max charge/supply to 100amp idle charge/supply and 200amp max*. have this connected to the HC600 located near the sound system's new amplifier. this specific settup saves on weight and at the same time, the integrated VVTI engine should be able to rotate the altenator without trouble at all.

for an example of a settup... using a JBL PBX500.1 amplifier that supplies about... 650watt average *600-700watt generaly depending on given independence load* and because of it's design is nearly 90% efficient *most amplifiers normaly being around 70%*. match this *staying with same reputable brand here* with maybe a JBL P1022 or P1024, extremely efficient 10 inch subwoofer and medium to light weight OR a JBL W10GTI, slightly more powerful and less efficient, about 2.5 times heavier but having the best sound quality that money can buy.

now before you say it's too much power and it may sound like an intense system but because of the way the Prius and a handful of other vehicels are designed and depending on the music the user would be listening too, current pull shouldn't be much more then about 15-25amps *based on a 110db near feild listening level, this is a pretty loud level. near feild listening is just that, the audio system very close to you and your ears, 110db is slightly louder then what you experience at the movie theater*.

the question is... if there is anyway possible way, and i'm also including custom mounting brackets, is there anyway a small aux. altenator can be attatched to the VVTI? the battery supply is only meant to compensate for voltage drops and to help stiffen the current quality near the amplifier so there should be no need for a huge battery, 99.9% of the power supplied should come from the altenator.

again the question "is there anyway a small aux. altenator can be attatched to the VVTI?", including custom mounting brackets, even if the user has to make thier own in a DIY way.

it's for those audio enthusiasts who are looking for more efficient vehicels, the Prius came to mind because it's one of more efficient ones on the market. hyrbid system aside, the Prius is actualy VERY simular to the Scion xB from, 500lbs heavier then the xB but when it comes to the sound properties of the materials used it's very simular. the above mentioned settup *JBL BPX500.1, JBL P1022, Kinetik HC600 and altenator* should only add around 75-80lbs *cables and fuses included* thus making it a nice light weight settup.

thoughts? answers? *be nice, i've leared much about the Prius, but not enough thus why i'm here.*

 

<div class='quotetop'>QUOTE(John in LB @ Jan 29 2007, 06:25 AM) [snapback]382212[/snapback]</div>

to my understanding though, taping into the exsisting battery supply is extemely dangerous and possibly deadly *i'm told this by the local Toyota mechanic shop*. though i'm not sure about this, taken the proper causions and that won't be a problem. what i'm thinking about though is an easy upgrade process, something that others can use at any time without hassel of a difficult inverter or without much knowledge of electronics. i believe using an add-on altenator, mileage would be effected the same way as if i taped into the many battery, but would be easier to install for others. this is also being based for future make vehicels that will soon be better then Hybrids. because of this, an easy solution would be best for others to avoid hassel with technical difficulties of the mechanics used. so the idea came to mind... why not make custom mounting brackets for specific vehicel builds for an addon power supply that doesn't interfear with the original system. i will however concider it an option and look into it a little more and possibly come up with my own design. i will still inclued a small battery like the Kinetik Audio HC600 as a stiffener for power stability. my goal is to have an addon 100amp 13.8v *12-14.4v range* system available with easy install to audio enthusiasts who have vehicels that are not designed for high power demands *that basicly classifies every vehicel class, but you get the idea.*.

again i'll take that into concideration and include that in my options. i need to look further into the electrical properties of the main battery. unfortunetly i don't own a Prius to get my hands dirty with, my old man will soon but i doubt he will alow me to touch it.

 

<div class='quotetop'>QUOTE(Presto @ Jan 29 2007, 04:03 PM) [snapback]382416[/snapback]</div>

the Scion was just an example of a small altenator size comming from the same company that could be used.

it's not just a single PBX500.1, a total system overhall of new amp for subs and new amp for mids and highs, pull would be higher in maximum ability but in all reality the user wouldn't pull more then 20-30amps for extremely loud levels because of the crest factor.

what is ACC mode exactly?

and below is an explination of the crest factor.



*general music does not follow the rules of the RMS power ratings of speakers and amplifiers. Amplifiers are rated on maximum non distorted power of upto 0.5% THD to 1% THD based on sinewave signals which are very harsh and demanding. RMS power ratigs of speakers are based on thermal limitations of the voice coil and how well the speaker can cool it's self down while in play. when it comes to actual play time, the sinewave power rating of the amp will be diffrent compared to what will be seen during musical play. what would be pulling 50amps during sinewave testing would only pull around 20amps on the same selected gains and volumes due to the crest factor. the crest factor is just a another way of naming the sound waves the music creates. sinewaves are large and consistant and use alot of energy, cresting waves are all over the place and instead of consistant levels, peaks and dips are everywhere. this is called the crest factor and because of this, uses less power. for a better example, play a song on Windows Media player with the "bars and waves - scope" visual, this will show you exactly what i just explained.*

 

<div class='quotetop'>QUOTE(aaf709 @ Jan 29 2007, 05:06 PM) [snapback]382462[/snapback]</div>

excuse me for not understanding the abbreviations <_<

*puts it in his notes* thanks for that, i'll keep that handy.