Amps help

[the_b1ues]

Ive got one 1000 watt shark amp running two 1000 watt subs does this meen that my subs are reduced to 500 watt each or is it still 1000. This is really bugging me for a while now so any help would be good thanks.

 

[jenko]

1000/2=500!!! yes splits!

 

[the_b1ues]

so really having to from having two subs im not getting alouder sound unless i get a 2nd amp

 

[2FST4U]

depends what the rms on each sub is

example below
RMS: 300 Watts -- what the amp needs to give the sub
Peak: 1200 Watts -- subwoofer output

 

[BrianR]

Forget the numbers, they are meaningless the way you are using them.

The 1000 w rating is B/S to put it mildly.

The RMS output can only be achieved if the amp is running into its intended load, normally 4 Ohms.

If you connect 2 x 4 Ohm speakers in parallel, you effectively half the impedance, a lot of amps cant handle 2 Ohms and will distort.

If you connect 2 x 4 Ohm speakers in series you double the impedance and again the amp may not be happy with that.

Check the spec sheet for the amp see what range it can cope with.

This is one of the reasons some makers have 8 Ohm speakers as an option.

if you parallel connect 2 x 8 Ohms speakers you have 4 Ohms and the amp will deliver its full RMS power with a minimum of distortion.

 

[Tigger]

The normal impedance of my sub is 2x2 Ohms with 400W RMS 800W max
The RMS and max are the same on the mono amp that is running them

What I can't get my head around with ICE specs is the power ratings & Impedance etc - all jibberish to me
But I'm picking it up

 

[BrianR]

The normal impedance of my sub is 2x2 Ohms with 400W RMS 800W max
The RMS and max are the same on the mono amp that is running them

What I can't get my head around with ICE specs is the power ratings & Impedance etc - all jibberish to me
But I'm picking it up

Simple rule, double the impedance, you half the power, rule 2 forget total output, its strictly sales talk.

Pity Alpine don't run the courses at MK any more, Chris Brown was THE man.

 

[Tigger]

Right
What courses can you do to "get into" ICE ?

 

[Dan R]

figures on amps are pretty much rubbish. they are all taken at 14.4 volts aswel and a car battery is only 12 or so. by the time its travelled down the cable its lost a little bit more. if the amp is measured at 1000 watts at 14.4 volts then at 12 volts you can half the power so really its only doing 500 watts. but an amp like that will never do 500 watts. people dont think it but 500 watts genuine power running speakers and playing actual music is alot of power. as for the subs. if you double the cone area. ie two 12 inch instead of one you will get a 3db increase in sound! hope that makes sense :S

 

[Dink]

yeah and 3db is twice as loud

just to make things more complicated

 

[2FST4U]

so what should you be looking for when buying a sub becuase from what i can see you can get a JBL sub 1000w for £30 and lets say a JL audio sub 125w for £140 i dont get it whitch would be best :S and wtf is ohms

 

[BrianR]

Right
What courses can you do to "get into" ICE ?

The manufactures used to run them, but now all this stuff has gone down in price and the profits are tiny, they don't bother. Well not in this country, Alpine USA have an academy.

Going to School to learn about car audio !!! you'd have a piece of that action wouldn't you ?

 

[2FST4U]

Right
What courses can you do to "get into" ICE ?

The manufactures used to run them, but now all this stuff has gone down in price and the profits are tiny, they don't bother. Well not in this country, Alpine USA have an academy.

Going to School to learn about car audio !!! you'd have a piece of that action wouldn't you ?

can you not go to college for car audio?

 

[Jay_clio]

Right
What courses can you do to "get into" ICE ?

some ppl just learn all by themself's m8, not that hard..

 

[2FST4U]

Right
What courses can you do to "get into" ICE ?

some ppl just learn all by themself's m8, not that hard..

no not hard just cost money to experement

 

[BrianR]

The manufactures used to run them, but now all this stuff has gone down in price and the profits are tiny, they don't bother. Well not in this country, Alpine USA have an academy.

Going to School to learn about car audio !!! you'd have a piece of that action wouldn't you ?

can you not go to college for car audio?

I don't think so, they don't even teach basic skill courses in most places, thats why we have foreign Builders, Plumbers, Electricians etc taking all the jobs.

 

[the_b1ues]

I dont really get all this number and s**t but wat ive got is 2

12" 1250 w Infinity Sub
Frequency Response: 25 - 400hz
Power Range: 60-300 watts Rms (1000 watt max power)
Sensitivity: 93db
Inpedance:4 ohms

And my amp is,

1 or 2 or 3 channel for Dual Subwoofer or Sub and Mains Speaker +

Achievement 1000 Watts music Mono- bridgable up to 400 W RMS Multi-fashions

Subwoofer Crossover Frequency adjustable (40 to 250 Hz)

so what does that meen i have to do to get the best sound?

 

[BrianR]

Wire it up as a dual subwoofer and turn the crossover down to 50-60hz.

 

[the_b1ues]

what what up the amp how to i do that

 

[Jay_clio]

some ppl just learn all by themself's m8, not that hard..

no not hard just cost money to experement

Cost money to experement ? how? its preety much straight forward, try and help ur m8ts if they do decide to wire some Amplifier's and Subs to the car then ul c were everything goes.

 

[2FST4U]

no not hard just cost money to experement

Cost money to experement ? how? its preety much straight forward, try and help ur m8ts if they do decide to wire some Amplifier's and Subs to the car then ul c were everything goes.

lol wireing an amp and sub is simple done it loads of times thats not realy experimenting is it

 

[the_b1ues]

still no one has answered my quiestion