Results 671 to 680 of 13229
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Tsikot Member Rank 3
- Join Date
- Sep 2003
- Posts
- 786
April 16th, 2005 06:33 PM #671Originally Posted by accs
gusto ko din pa upgrade ng sounds. But seems that nowhere to put a bigger subs. I've got a 12" subs lying at home. Dati gamit ko to sa Adventure ko. The only space for the subs that I can see is at the rear.
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April 16th, 2005 08:54 PM #672Originally Posted by eric
Normally kasi, buffer operation ang function ng mga car battery. Meaning, the maximum current rating of the alternator is exceeded by up to 20% when additional load like power booster amplifier ( increasing the sound power output) & most of the time night time driving habbit with AC working. These are just the basic loads example that 20% power from the battery is being taken.
This is a good explanation for long life span batteries.
If we can lessen the loads in which the alternator can do the job alone without asking additional power from the battery, for sure the maximum lifespan of the battery can be achieved.
About battery charger's price, I don't know the price now. The last thing I still remember when I first left, US$ 1.00 = PhP 7.00, hehe.
Mga Bro, if you are interested with the charger, you can do it youself. These are the basic parts:
110-220 / 12V-0-12VA Transformer - at least 5 amperes rating at the secondary
2 pcs. diodes rated 10 amps connected full wave.
That's all, no need capacitor. You don't need regulated charger as this is used for overnight only. Most probably di mauubos ang PhP 500.00
Take note: this charger can't be used for totally discharged battery. It will be used only for equalizing charge for your battery. But if you want more powerful charger, replace your tranformer to a higher rating, say 20amps ang higher diode rating.
The one I am using right now is only 5 amperes.
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April 16th, 2005 09:06 PM #673Originally Posted by bongliza
Ported Box vs. Closed Box
Ported box is a type of bass speaker enclosure that the desired resonance frequency can be tuned. Port is usually in the form of PVC tube that the length & diameter are to be considered. Diameter has to be determined to prevent undesirable noise due to air pressure. The length however, shorter makes the frequency high & vice versa.
Closed box is a fixed enclosure that can't vary the desired frequency once it has built. For this reason, speaker parameters have to be considered in designing enclosure. These are: Fs = free air resonance frequency, Qt = magnification factor & Vas = equivalent air volume. It needs a lot of computations to calculate the optimum box enclosure based on the actual speaker parameters.
Generally, speakers with good quality magnets are designed for small enclosure. Locally made speakers' Qt are high which requires high volume to achieve desired bass frequency.
Additional pointers in choosing your speakers:
1. Look for higher coil diameters. These are usually designed for bass.
2. Select with high density or big magnet for lesser volume of your box.
Example Computation:
Given Parameters
Fs = 53 Hz
Qt = 0.452
Vas = 1.23 cu.ft.
Box Volume = 15(Qt)^2.87 x (Vas) = 15(0.452)^2.87x1.23 = 1.889 cu.ft
Box Frequency = (Vas/Box Vol.)^0.32xFs = (1.23/1.889)^0.32x53 = 46.2 Hz.
Conclusion: The optimum box volume is 1.889 cu.ft with resonance frequency = 46.2 hz.Last edited by busy road; April 16th, 2005 at 09:16 PM.
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April 17th, 2005 11:02 AM #674
Yang bang thermocooler puede ring maging heater instead of cooler??
Cause mine has this label instruction when you invert the plug connection eh magiging heater siya though havent tested it yet only the cooler..
WBR,
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April 17th, 2005 12:04 PM #675Originally Posted by Innova_Boy
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April 17th, 2005 12:07 PM #676
With the rear seat in place, how much space does the Innova still have from the seat to the rear door? Sana lampas pa ng 12" para kasya thermocooler ko
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April 17th, 2005 12:18 PM #677
ung mga thermocoolers n warmers take a LOOOOONG time to actually cool or warm anything inside. binyahe ng kapatid ko sa V nya more than 2 hours halos walang kwenta. i tried leaving it on for 4-5 hours ayun lumamig na pero seriously u want to leave it on for 5 hours on ur car? baka di na magstart yan hehe
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April 17th, 2005 12:26 PM #678
You cannot expect it to make things cold that fast like a refrigerator or heat it like an oven. Sabi nga sa specs, it is advisable to place cold drinks na before magbiyahe ka. Kung food warmer naman eh it will not boil or cook food just keep it warm.
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April 17th, 2005 03:23 PM #679Originally Posted by beeper0358
WBR,
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April 17th, 2005 03:33 PM #680Originally Posted by Innova_Boy
Problema lang eh sana dumating na unit ko, sabi ng agent one week lang after reservation nandiyan na eh mag two weeks na wala pa daw
Puwede kaya i pullout reservation fee ko lipat ako kung saan may available, malamang umiyak ang agent
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