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Battery Powere
Is this a good set up for my amps in my 04 Hyundai Elantra?
I asked this before but I was unsure about the response.
This is the specs for each of the 2 amps:
1200W max power
200W x 2 RMS into 4 ohms
500W x 1 RMS into 4 ohms
The speakers I'll be using is two 400 watt max 200 watt RMs speakers for one amp and two 300 watt max speakers and one 12" Dub sub with the following specs:
Size 12"
Magnet Weight 80 oz.
Power Handling 400 RMS
Frequency Response 20Hz - 500Hz
I have a 4 gauge powere wire from my battery through the front of the car away from the engine heat, through the passanger fender under the tire well through a grommet into the cabin. I had a 100Amp fuse installed 12 inches from the battery. This runs to the back where I added an extra fuse for safety spliced 2 way into two 4 gauge wires. For one wire, it will go through a capacitor to a 40 Amps fuse to one amp where the two 400 peak speakers are connected. I ran out of space so read the next question and reply to that one... please
Your wiring is functional. Make sure you upgrade all the wiring to the battery and chassis, and to the alternator. Your car probably has a small ampere output (considering brand), so you may need to upgrade the alternator. When the power supply becomes a question, always upgrade in the following manner;
1. Alternator
2. Battery
3. Capacitor
You could subplant the Capacitor as #1 if you want to do it the cheap and incorrect way. The cap may help "cover-up" your systems shortcommings.
I read some of your other questions and wanted to respond to one thing. You said that you wanted to use a switch to disconnect the power to one amp when not needed. I really wouldn't do it on the main power for the amp, consider putting the switch on the remote trigger from the head unit. The will eliminate the need for a high current switch, the remote trigger is very minimal (12 volts-.2 amp?).
I would also reconsider putting the 2 300 watt speakers on the same amp as the sub. #1, it would reduce the load to the amp to an unacceptable level. #2 you would not have the function of the active low pass crossover for the subwoofer. #3The speakers will not make a "stereo" sound, they would be in mono. And #4, The total power of the amp could be better put to use on the sub, it would make the total system sound more "even".
Hook up both sets of speakers to the 2 channel amp, that sony can handle a 2 ohm load and you will still have stereo seperation.
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How Bright L.E.D. to light a room?
I want to record video in the darkness, and I don't want any light to be emitted from the LED, so I'm using an Infrared LED. Which power of LED should get, to at least light a small room? I would like to power this with a 9V battery as well. Should I use many of small powere lamps or 1 bright one? Thanks in advance!
physics
