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What sub for this amp?

Ragtopman

By Ragtopman
in Audio, Electronics & Software

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Ragtopman Enthusiast

Ragtopman

Posted
Posted

I have decided go with a new amp for my truck rather than recycle old stuff. I picked a 5-channel Phoenix Gold amp and need to pick up a new sub for it. The amp is rate as follows:

 

Subwoofer Channel Max Power Output: 250Wx1 @ 4 ohm / 400Wx1 @ 2 ohm

Subwoofer Channel Continuous Power Output: 150Wx1 @ 4 ohm / 250Wx1 @ 2 ohm

 

What would be a good sub choice to match to this power output?

 

Where should my rms be, and how does that compute with a dual voice coil sub? I would like to run just one sub for space reasons.

 

Heres the rest of the system: front door speakers Rockford 6.5's 75w rms and rear door Infitity Kappas 4x6 60watts rms the head unit is a Pioneer 18w rms x 4 with 3 preout for the amps

  • 1 month later...
Nova Enthusiast

Nova

Posted
Posted

My personal belief is that you should always try to get the most out of your amplifier. Being that with amplifiers you are essentially paying for wattage more than anything, there is no sense paying for wattage that you aren't going to use.

 

In this case, assuming that the amp is 2 ohm stable, I would recommend finding a sub that has dual 4 ohm voice coils, and is rated between 250-300 watts RMS. The reason for the dual 4 ohm is it can be wired to present a 2 ohm load, thus using the amp to it's potential. Another option would be to use two 4 ohm single voice subs, which can also be wired for a 2 ohm load.

 

And as far as particular subs go, I am not brand biased at all. Just make sure you do your research before you buy, and try to stick to a mainstream company (Alpine, Kicker, Clarion, Rockford, Infinity, ect). Other things to consider will be mounting depth and recommended enclosure volume, as you do not want to buy something that will not fit in the spot you want it to.

fej New Member

fej

Posted
Posted

I agree with Nova, getting yourself to a 2 ohm load for that amp is your best plan of attack. Whether that is 2 single 4 ohm subs or a single sub that is dual voice coil 4 ohms each is dependent upon what you want to do with your enclosure and how much space you want to give up.

 

For the money the Elemental designs stuff is decent , I personally recommend the Infinity Perfect subs, or Image Dynamics IDQ or IDmax. Check out the tcsounds.com webiste as well as there is a great sale going on there for very well built subs. Old JL w6 models are tough to beat as well.

 

G'luck

Fej

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