2 12'' sub but 2 diff amps?

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: September 10, 2004 at 7:10 AM / IP Logged

Hi guys,

I want to built 2 ported sub 1.75cu each, but my problems is i got 2 amp but they r not the same...diff model and diff make. So guys what do u think i should do????

Cheers :)

fuseblower

Silver - Posts: 403

Joined: June 25, 2003

Location: United States

Posted: September 10, 2004 at 7:12 AM / IP Logged

It depends on what you are trying to acheive. You can use one to power your subs the the other to power your other speakers if both are not class D amps. You can sell both and buy one nice sub amp or you can just take your pick and use the best amp for your subs and sell the other.

Too many options.

mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: September 10, 2004 at 7:17 AM / IP Logged

Would u recommend this...

1 12" with 1st amp

1 12" with 2rd amp

Will that work???

/r7

Silver - Posts: 340

Joined: July 30, 2004

Location: Canada

Posted: September 10, 2004 at 7:59 AM / IP Logged

the only hassle i see is matching both amps to the subs, so that they actually come out sounding the same.

selling the amps and buying 1 class D amp would give you more for your money.

but this way you have a few options to work with.

stevdart

Platinum - Posts: 5,816

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Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: September 10, 2004 at 8:10 AM / IP Logged

I know from your other posts that you are trying to work with what you got...so I don't see why not use them both. As long as each one will output the right amount of power to each sub. Use a digital multimeter and set the voltage out to the same value on each one. Each sub would then receive the same power. Make sure they each also get the same input signal...or you can use left input with one and right with the other.

This is with the assumption that the two subs are identical?

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: September 10, 2004 at 5:11 PM / IP Logged

Hi Stevdatr, can you show me step by step how to use a digital multimeter to set the voltage for the sub???

Sorry i am new to car stereo.

Thanks :)

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: September 10, 2004 at 6:43 PM / IP Logged

Ok, give up the ohm rating of each sub, and the power output at that ohm load for each amp. So I can figure out what the voltage should be.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

12-volt_guy

Copper - Posts: 53

Joined: September 10, 2004

Location: United States

Posted: September 10, 2004 at 8:29 PM / IP Logged

Doesn't much matter if all he wants to do is match the output. Just send a steady test tone through each one and set the output voltages the same. No?

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: September 10, 2004 at 8:53 PM / IP Logged

No, I don't want the chap clipping his amps. What does he do, come up with a random number?

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: September 10, 2004 at 9:14 PM / IP Logged

don't even think about it unless your box has 2 separate chambers separateing the subs, , , otherwise, , follow what others are instructing you to do.

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

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