i want to wire two 1250 watt rms subs but i cant find a 2500watt rms amplifer. should i wire two 1250 watt rms amplifiers?
2007-01-15 15:00:15 · 6 answers · asked by kyle f 1 in Cars & Transportation ➔ Car Audio
Try here:
http://www.maxxsonics.com/hifonics/amps_main.html
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Something to consider...this is an example...
To calculate the current draw of an amplifier, multiply the number of channels by the RMS watts per channel (a 2 channel amp rated at 500 watts RMS per channel would be 1000 watts). Double it to account for amplifier inefficiency (1000 watts X 2 = 2000 watts), then divide by the average output voltage of an alternator, 13.8 volts (2000 divided by 13.8 = 145 amps). Since the average music signal requires about 1/3rd of the average power in a test tone, divide by 3 (145 amps divided by 3 = 48 amps).
This is an average approximation of current draw and it can go higher. So I would gather between *48 and 72 amperes for this example.
The alternator of a:
compact car is about 35 amps
mid-sized car is about 65-75 amps
SUV is about 145 amps
Calculate 40% of the amperes of the alternator you have now. This is the average current the car uses when running. Add this number to the approximate average current draw (*48), and you will come up with the mimimum average current required to power the audio system and vehicle. I would recommend going with the next highest rated alternator you can find.
2007-01-15 16:47:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If you wire the subs correctly (depending on impedance and number of voice coils, etc.) you could use a 1250 watt rms amp to push BOTH of the subs.
You'd save money, there would be less current draw on your system, and best of all, it would sound the SAME!
Trust me, since I know how to do it, from now on I'll only have one amp pushing my subs in any system I have
2007-01-15 15:40:40 · answer #2 · answered by Mister 4 · 0⤊ 0⤋
Look into Pheonix Gold before you purchase anything. There high dollar but worth every penny. If they dont carry what your looking for then to get what you want with quality is going to cost you deep into you wallet.
2007-01-15 15:07:50 · answer #3 · answered by kakl1104 2 · 0⤊ 0⤋
Sounds feasible.I have two hearing aids to give you for latter dude,that`s going to shatter windows.
2007-01-15 15:08:59 · answer #4 · answered by (A) 7 · 0⤊ 0⤋
you could just go with a 4000 mono block that will give you more then enough power.
2007-01-15 15:18:19 · answer #5 · answered by victor m 1 · 0⤊ 0⤋
http://www.ehow.com/how_5829_wire-car-stereo.html
http://www.electronixwarehouse.com/education/amplifiers/installamp.htm
http://msxml.excite.com/info.xcite/search/web/speaker%2Bamplifier%2Bwiring/1/20/1/-/0/0/1/1/1/1/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/1/-/-/-/-/-/-/-/-/-/-/0/300/top
2007-01-15 15:58:35 · answer #6 · answered by tronary 7 · 0⤊ 0⤋