loud?!?!

[ere me now 10+ year member]

just yesterday i had finally bought all the parts i needed to run my system( jbl gto 75.2 & jbl gto1200b and a 40A power supply for my room)

basically i want run this from my computer and connected it all up and it works but it aint very loud //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif , could it be cos i dont have a proper sound card, at the moment its connected to the onboard audio port. or would a preamp sort it not that i no what it is lol

thanks guys 4 any help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[RandyJ 10+ year member]

Probably because 40A doesnt leave the amps with much power to work with.

p=iv. If you have a power supply that is feeding it 14v, then at 100% efficiency, both amps together would be able to produce at max 560w.

 

[ere me now 10+ year member]

wot do u mean ....

Probably because 40A doesnt leave the amps with much power to work with.

on the power supply it has an amuter and it doesnt go higher than 8amps!! lol and i bought a 40Apower supply witch was £130 lol

 

[monte_carlo97 10+ year member]

40 amps is not near enough for those amps. Try adding a car battery in there and just leave the power supply on all the time so when you do not have the amps on it will charge the battery.

 

[audiolife 5,000+ posts]

not enough current for sur

 

[ere me now 10+ year member]

but it dont even go more than 8 amps when playing so surely theres enuf current output from the power supply, i think it coulld be the signal not high enogh voltage because the signal is from my computer, and its the on board AC97 chip, so mayb a sound card might fix or a preamp (dont no what it is lol) //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif//content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif

any help please //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

 

[tristan20 10+ year member]

your signal is too low, get a line driver

 

[Raven 10+ year member]

Too much power. Or, should I say, too much amplifier. I ran a similar HT setup with coaxials, a single 10, and about 8 amps worth of power. When I hooked the sub up to my Jensen (230watts bridged) is was plenty loud. When I swapped that for my Power Acoustik amp (600watts bridged) is was nowhere near the volume level. I don't think efficiency has anything to do with it, it's just large amps can't utilize very small levels of current like smaller amps.

 

[ere me now 10+ year member]

how much are they and would this make it louder??

thanks