2 subs of a mono block?

[deniswhite1]

hey guys if i would to wire 2 4 ohm subs in parallel to get 2 ohm load and conect that to a 300 rms monoblock amp will each sub be geting 300 rms? or 150 rms?

[aveosummit]

If you are running a class D amplifier, then yes you will get 300 rms on both subs....

[deniswhite1]

If you are running a class D amplifier, then yes you will get 300 rms on both subs....

what if its not? how does the efficincy have anything to do with power going in to one sub to another?

[aveosummit]

Efficiency will set what kind of wattage you will really see. With class D amplifier being the most efficient upwards to 97%, according to my Electrical Engineer friend at Texas Instruments, they are the recommend amplifiers for playing low frequencies. Class A/B amplifiers have an efficiency of 67% max so they will get really hot when used to play low frequency thus losing a lot of wattage to heat. So I guess to answer your question it differs from amplifier class to class but ideal would be class D and also differs from brand to brand. So without knowing the model in question, I will have to say that in theory you will not get a true 300 watts RMS on both subs, and I can not say what you are getting, if you are not running a class D amplifier.

[deniswhite1]

http://www.futureshop.ca/catalog/pro...0064434&catid= its this amp, but i can't find were it says the class

[aveosummit]

The amplifier is a class A/B amp.

Do you want an alternative to your amplifier or have you already purchased the amplifier?

[deniswhite1]

The amplifier is a class A/B amp.

Do you want an alternative to your amplifier or have you already purchased the amplifier?

im trading in for an old digital camera i have, so basicly free

so if i put 300watts in to the 2 subs wired up in paralel to 2 ohms will each sub be geting all the power or will the power be split in to half.

[aveosummit]

According to crutchfields' website:
http://www.crutchfield.com/S-PaM9TTf...120&I=108R311A
You will see, 116 watts RMS x 1 at 4 ohms (312 watts RMS x 1 at 2 ohms)


So theoretically if you present the amp with a 2 ohm load you might be able to get the amp to produce 312 watts RMS which more the likely will be split (class A/B feature) between your subs.

[deniswhite1]

so each sub will be geting half and the other one half?

thanks for your help

PS: the amp ended up being dameged so i didn't get it. i will just keep my pioneer one for now and port the box

[aveosummit]

Well, I am glad that I could be of assistance. Let me know if you ever need any a/v equipment I will take care of you.