Do I have enough Wattage?

[Ffej]

Have an Alpine MRX-M110 (1100W, bench test=1175W). Considering two SA-12's (750W RMS) but I'm worried that may be under powering them. These will be in a 4 cube net ported box tuned to 32Hz in the back of a SUV. Thoughts?

Jeff

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[Booming]

If you already have the amp, I'd say run it until you get more power... They can take more power for sure! But that amp will get you by for now!

 

[Ffej]

If you already have the amp, I'd say run it until you get more power... They can take more power for sure! But that amp will get you by for now!

I see two numbers for the SA-12. 600w RMS, and 750W RMS. Maybe the EV3 series (500W RMS) Sundown 12's would be a better fit for me?

 

[Booming]

I think you'd like the SA's better. But either are great subs

 

[EnvoyDenalii]

I see two numbers for the SA-12. 600w RMS, and 750W RMS. Maybe the EV3 series (500W RMS) Sundown 12's would be a better fit for me?

that 600 watt rms number for the sa is an old rating for one and for two i think that rating is for he 8 inch. when u click on the sa series on the sundown website and click 12 inch it says 750 rms. i heard they used to rate it at 600 rms back in the day but people were putting 1500 watts on them no problem so they changed it to 750. i would do what the above guy said, get the sa and use the amp you have, then when you have more money you will already have the subs and box so you just add a bigger amp and your pounding louder without much effort(except ur wallet lol) good luck and post some pics when you get it done

 

[audiobaun 5,000+ posts]

Have an Alpine MRX-M110 (1100W, bench test=1175W). Considering two SA-12's (750W RMS) but I'm worried that may be under powering them. These will be in a 4 cube net ported box tuned to 32Hz in the back of a SUV. Thoughts?
Jeff

If you cant maintain a proper voltage to supply the amps needs you will not see those types of results from that amp.I always say..Run what you have.You can always upgrade later.Just be careful not to go into clipping.It can happen at any level.Low voltage can fry an amp eventually,and possibly a sub as well, or speakers.

 

[Boomin_tahoe 5,000+ posts]

SA subs are under rated...either the 600 rms or 750 rms. people put 1000 rms to each, as long as it's a clean signal, should handle it fine.

The diff ratings (rms) might have to do with diff versions. I think the Ultra is 750 watts.

 

[knighty]

Get the higher rms sundowns and don't clip. If your like me you'll upgrade the amp later lol. You're not gonna hurt them if you don't clip them

 

[Jeffdachef 5,000+ posts]

Have an Alpine MRX-M110 (1100W, bench test=1175W). Considering two SA-12's (750W RMS) but I'm worried that may be under powering them. These will be in a 4 cube net ported box tuned to 32Hz in the back of a SUV. Thoughts?
Jeff

Forget the sa series. Get the sundown ultras. Aka cab ultra. The amp should make them get loud. It wont maximize their capabilities but should get loud regardless.

 

[Ffej]

Forget the sa series. Get the sundown ultras. Aka cab ultra. The amp should make them get loud. It wont maximize their capabilities but should get loud regardless.

Those look like good subs, but they are 750W too. Was thinking I might have better results running a sub at its RMS with a little headroom. Like something in the 400-500 RMS range. I don't think I'll be upgrading my amp. If I do I'm going to need an alt. too. Considering something like:

http://www.sundownaudio.com/index.php/products/subwoofers-2/item/ev3-series

http://reaudio.com/products/woofers_scxv2.php

http://www.diamondaudio.com/products/subwoofers/diamond-elite-series-woofers/item/28-de122.html#details

http://www.memphiscaraudio.com/products/subwoofers/bass-reference-subwoofers/15br12s4/

 

[Jeffdachef 5,000+ posts]

Are the ultras these? EV3 SERIES

nope thats puny tiny entry level sh*t

This is sundown's design that they sold to CAB and closely work with them as well. From direct swaps everyone gained around 1 db over the sundown SA series without adding any power. Not to mention its cheaper than sundown SAs. Its overall superior x2 vs the sundown SA series and 1.5x the motor weight. Basically one of the best 2.5 inch coil subs on the market for the money atm, if not the best.

* NEW * CAB-ULTRA-12 12" 750W SUBWOOFER - Car Audio Bargain

 

[Ffej]

nope thats puny tiny entry level sh*t
This is sundown's design that they sold to CAB and closely work with them as well. From direct swaps everyone gained around 1 db over the sundown SA series without adding any power. Not to mention its cheaper than sundown SAs. Its overall superior x2 vs the sundown SA series and 1.5x the motor weight. Basically one of the best 2.5 inch coil subs on the market for the money atm, if not the best.

* NEW * CAB-ULTRA-12 12" 750W SUBWOOFER - Car Audio Bargain

On last thing. Cscstang customs designed a box for me based on the SA-12. Think that same design would work for the CAB Ultra-12?