Those speakers won't work well for you, their max input power is 40 watt that is normally the continuous rating or how much power can constantly be applied, peak power for transient spikes should be double that for brief periods. Your amp is sending out more power than the speakers can handle. If you did convert them to 4ohm which is what most auto speakers run you would be putting even more stress on them. They would work until you cranked it up and then they would fry. Better off matching speakers designed for car audio with the correct ohmage and wattage to match your amplifiers output.
[size=75]Why does the universe decree that if you have all the time in the world to work on projects you have no money and vice versa?
Green 2004 ZR-5 w/ too much to list here: http://www.cardomain.com/ride/2296465[/size]
Im with everyone else saying there not going to work. You will blow them and then you will be back to square one. What are you looking for in your sound system? More bass?
[size=75]2004 GMC Sonoma ZR5 (Sold)
2005 Toyota Tacoma[/size]
On the contrary the speakers will work just fine. The amp is rated for 75 watts per channel with a 4 ohm load. If you are using an 8 ohm speaker then the power to the load will be cut in half compared to the 4 ohm speaker. You will end up with 37.5 watts per channel at 8 ohms.
If there are any other EE's out there feel free to check my math.
Using Ohms law
V = I * R and Power = I^2 * R
Now solve for the voltage across the speaker
(75 watts with a 4 ohm load)
V = sqrt(P * R)
(75W * 4ohm)^.5 = 17.32V
And using (V / R = I)
17.44V / 8ohm = 2.18A
Substitute the new speaker load 8 ohms and find
the new power delivered to the load
(P = I^2 * R) yields
2.18A^2 * 8ohm = ~38watts
All in all the new speakers will work fine...the question is how will they look?
2003 S10 Crew 4x4
Mods: 1.5" Front Spacers - GM Valley Hitch - WeatherTech WeatherFlectors - Bilstein Shocks - Boise Spring works 2" rear spring kit - Truxedo Toneau Cover - PopLock tailgate lock - Hypertech Tuning - SKIDS Flares - 2" Body Lift - ZR2 Axle upgrade
ludwis wrote:On the contrary the speakers will work just fine. The amp is rated for 75 watts per channel with a 4 ohm load. If you are using an 8 ohm speaker then the power to the load will be cut in half compared to the 4 ohm speaker. You will end up with 37.5 watts per channel at 8 ohms.
If there are any other EE's out there feel free to check my math.
Using Ohms law
V = I * R and Power = I^2 * R
Now solve for the voltage across the speaker
(75 watts with a 4 ohm load)
V = sqrt(P * R)
(75W * 4ohm)^.5 = 17.32V
And using (V / R = I)
17.44V / 8ohm = 2.18A
Substitute the new speaker load 8 ohms and find
the new power delivered to the load
(P = I^2 * R) yields
2.18A^2 * 8ohm = ~38watts
All in all the new speakers will work fine...the question is how will they look?
ding ding ding. we have a winner. yall are all concerned with watts and dont think about the ohms.
btw, its not about doing it right. but thanks for your opinion, lol.
and also they cant fly off the rear deck when i hit the breaks. cuz there is no rear deck and they are mounted to the upper back tube accross the back of my seats.
as far as how they look. i laready have them mounted and they look great. they are outdoor speakers so they came with a hanging mount and they have their own plastic boxes thats all weather resistant. hopefully they work good. i will post pics when i finish up the rig in a few weeks.
Dang ohms vs. watts vs. not enough coffee in the morning.
[size=75]Why does the universe decree that if you have all the time in the world to work on projects you have no money and vice versa?
Green 2004 ZR-5 w/ too much to list here: http://www.cardomain.com/ride/2296465[/size]
Hey that sounds like what my friend's brother did to his early 70's ford econoline van. He used some home speakers along with a 8 track player now that was classy with blue shagg carpet
[size=75]2001 crew cab with a quick hatch tonneau cover
235/75/15 bridgestone dueler at revos[/size]
