Sundown

[Mickey210]

2006 mercury grand Marques I got the choice between x15 d4 or do I go d2 let me know an what is the best amp for them I want you to hear me knocking from for away

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[mastershake575 10+ year member]

Sundown SFB-2000D should be good enough and won't break the bank

 

[Marve_Lous]

2006 mercury grand Marques I got the choice between x15 d4 or do I go d2 let me know an what is the best amp for them I want you to hear me knocking from for away

Go with the d2 so you can wire it to 1-ohm.

 

[MattinMO]

The x series being the most inefficient subwoofer I've ever owned put as much power on it as your electric will allow. D2 wired to 1 ohm on at least 3k

 

[Popwarhomie 5,000+ posts]

Agree. Go D2 with the 3k.

 

[Buck 5,000+ posts]

LMK if you need a box design for it

 

[Buck 5,000+ posts]

You could always do 2 12's as well, that usually winds up being around the same size as a 15 box, roughly.

 

[Bobbytwonames 5,000+ posts]

Dumb question, but what exactly does it mean when people say, "inefficient subwoofer"?

 

[MattinMO]

Dumb question, but what exactly does it mean when people say, "inefficient subwoofer"?

What it means to me and everyone interprets it differently is how well it does on rated power for instance the X series needs damn near twice the rated power (1500 wrms) to even get it moving while other subs albeit totally different applications like JL audio do very well on low power like a w6 only needs 4-600 watts to get moving. Thats all imo

 

[Slo_Ride 5,000+ posts]

Dumb question, but what exactly does it mean when people say, "inefficient subwoofer"?

No gonna lie you're right.

 

[Bobbytwonames 5,000+ posts]

No gonna lie you're right.

So, some people call that inefficient and some people will say that it can take tons of power. Isn't it just a matter of knowing if your sub has stiff or soft suspension? Whatever, it is what it is.

 

[Mickey210]

Sundown SFB-2000D should be good enough and won't break the bank

Ok so is it a mono block im sorry I haven t looked it up yet cuz its the second thing im doing to my car cuz first I had to put some new shoes on it 26s an a lift but im going for looks an sound

 

[Buck 5,000+ posts]

So, some people call that inefficient and some people will say that it can take tons of power. Isn't it just a matter of knowing if your sub has stiff or soft suspension? Whatever, it is what it is.

No. Motor strength is another factor. Same wattage, same suspension, same size, but one woofer has a stronger motor, one has weaker. The stronger motor has more gauss per watt than the other, so per watt there's more magnetic reaction. Stronger motor means the woofer has more magnetism to grab onto, so to speak. Generally, more motor strength = more efficiency, if all other factors are the same.

There's coil gaps, center motor poles, length of the coil (aka how much of the coil is within usable magnetism from the motor).

A lot of factors play into efficiency.

 

[Buck 5,000+ posts]

 

[Buck 5,000+ posts]

Another factor in efficiency would be Mms, which is the moving mass. The heavier the parts are that have to move, the more power is used to move that weight, instead of being turned into sound.