New 42-volt Batteries

[SPLThunder 10+ year member]

umm let me check for aim.... im in Phoenix on my dads computer

 

[jer_stud56 10+ year member]

What do you mean if you could sleep? You on no dose? Heh that stuff is $5.00+ a box. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

- pe@ce

 

[jer_stud56 10+ year member]

Originally posted by SPLThunder umm let me check for aim.... im in Phoenix on my dads computer

Well I have Aim, MSN, and Yahoo. My names are below if you got any of them on there, if not thats fine.

- pe@ce

 

[SPLThunder 10+ year member]

well Now i have AIM... I love cable

my name is Subripper

 

[Biohazard 10+ year member]

Originally posted by Jmac I'm on a ****ed up immune system ...

i hear ya...i am weird too.....

but anywho....42 volt....i just dunno...i think it will take some time for all cars to have it

 

[jer_stud56 10+ year member]

Nah I bet people will be excited when they hear about it...It'll catch on fast no doubt.

- pe@ce

 

[maylar 10+ year member]

Originally posted by Jmac This just means 12-volt amplifiers will drop severely in price (Yay) but it also means that I won't be able to buy anything new in the future (Boo) ...

 

By the way, your example is flawed

 

If you make 50 watts with 12 volts @ 4 ohms, you should make 175 watts with 42 volts @ 4 ohms

Power is volts squared over ohms. And a bridged output circuit doubles the voltage (4X the power).
Check these numbers:

14 volts bridged gives 49 watts peak, 24.5 watts rms @ 4 ohms

42 volts bridged gives 441 watts peak, 220 rms @ 4 ohms.

No need for power supplies in amps any more lol. The 2 ohm speaker will go the way of the dinosaur.

 

[jer_stud56 10+ year member]

So will amps be able to go below 1 ohm or is there the same heat factor? More possiblities, more subs/amps, more competitors, more bass, all the fun... //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Can't wait for my 42-volt!

- pe@ce

 

[maylar 10+ year member]

Originally posted by Jmac While you are correct in stating that the square of the voltage divided by the resistance is technically correct, you must also remember that it's the AC voltage going to the speaker that is the correct voltage to use, not the power source

 

If your theory were correct, every head unit would produce the same wattage per channel ...

Actual output depends on the design of the output stage. My numbers assume zero losses across the output transistors. Maximum theoretical peak-peak output is the supply voltage X2 with a bridge configuration.
With modern BIFET transistors, power amps can come within .1 volt of the rails. Note that the peak output of nearly all head units is in the 50 watt range. Give or take a few depending on what supply voltage they rate them at.

 

[jer_stud56 10+ year member]

Anyone hear any new info on this? I just read through it again...

- pe@ce