my new mb quart sub

[deaftosociety]

hey guys i just got my new mb quart subwoofer its a 12 inch dual voice coil. its "rms wattage" is 500 watts and ive heard its not good to underpower a sub, mind you thats at 4hms i cant find crap that will run 500 watts at 4ohms i was wondering if you guys would know. By the way i havent mounted it yet but i thought knowing how we all are heres a little peek ive heard its good stuff thats why i bought it but here ya go

[Shad0wXCalibur]

Just because the sub is 500 watts doesn't mean the amp has to be. Even a 300 watt amp will make it plenty loud. Don't waste money on anything more. And no that's not underpowering it. Underpowering it would be running something weak like a 50 watt amp to it and you'd have to run the amp into distortion to get decent volume out of the sub and that's what hurts the sub.

[Bubs daddy]

You can safely run an amplifier that essentially would be double the wattage of the speaker's RMS rating. In your case, the speaker is rated at 500 watts RMS at 4 ohms so an amplifier at 1000 watts into one channel at 4 ohms RMS could be safely used.

That doesn't mean you have to use an amplifier with that much power. Just make sure if you push the gain up to substantial levels that you're getting clean watts from the amp and that you're not out of reserve power and sending a a distorted, clipped signal. Clipping and underpowering destroys more speakers than overpowering them.

Most well made speakers can handle momentary peaks at higher than their rating as long as the signal is clean. Higher rated amplifiers provide the clean reserve power necessary to handle these peaks without introducing clipped signals that can fry voice coils.

You could run the sub with a 300 watt amp but I'd buy at least a 500 watt mono rated amp.

[deaftosociety]

ive got a couple ideas of what amp to power it but im a little afraid of which ones they are tell me what you guys think would be a decent amp out of all of these http://www.woofersetc.com/inde...=6640 heres the tma one http://www.woofersetc.com/inde...=7024 and last but not least since ive heard zapco makes good stuff http://www.woofersetc.com/inde...=6057 theres also an infinity reference amp that comes close to the power rating i just donno if i should go with the really well known name brand stuff because from what im reading the zapco amps are really good, just like that sub even tho nobody i know knows what the hell it is lol

[Shad0wXCalibur]

If you've researched it and have read that the Zapco amp is good, then go ahead and get it.

[Jemdawg]

Just make sure you buy an amp from a company with a good reputation. I stick with Hifonics; they are the best buy for a good amp, really cheap. I can refer you to a great site to get them for cheap.

On the note of amp pairing, I'd buy an amp that offers more power than you need. First of all, the wattage advertised is usually max wattage, and you need to find the RMS wattage per specific ohms. Right now I'm running a 10" Boston G2-44, thats dual 4 ohm voice coil. This means, if you're running both voice coils, and you should, you can wire it for either 8 ohms or 2 ohms. A dual 2 ohm woofer can be wired for 1 ohm (which isn't always stable on an amp), or 4 ohms. Remember this, it's very important. I've gone through a few woofers, but my amp (Hifonics 1605-D) can put out a whopping 1600 watts at 1 ohm, so it was always good enough for any setup. Also remember that this wattage depends on the gain. Right now I'm running about 300w RMS to my G2, this is about the threshold for RMS wattage on the G2. If you want more information on this, I can refer you to another forum where some great audiophiles put it in ways I can't.

Make sure you get a D-class amp if you're only pairing the amp with your woofer. D-class amps are more efficient and reproduce low frequencies with a square wave. What does this mean? You get more power for less money.

Most importantly, determine what your goal is. Do you want SPL, loud pounding bass that moves your windshield? Or do you want SQ, tight and accurate bass? Then decide whether you want a sealed box or a ported box. Finally, find the exact enclosure specs for your woofer (this information should be included in the speaker's literature) and either have someone build a custom enclosure, or, if you're savvy with fabrication, do it yourself. Just make sure you don't buy a Walmart or Best Buy special unless it just happens to be exactly what you need.

I prefer SQ and my woofer is at home in a tiny 0.5 sq. ft. enclosure. For a 10" woofer, it still pounds and gets really low. This is the result of proper power and enclosure design, it allows the woofer to play at its full potential. I hope this helps, and good luck.

[deaftosociety]

jemdawg thanks for the info man do u have aim or yahoo or something i was thinking sealed im not really a boomy bass person but then i saw bandpass and it looks like a good mixture of both but its supposedly really only good for the really low notes if you do have aim or yahoo man my aim and yahoo is the same as my display name thanks for all yalls help and also the max wattage at 4 ohms is 1000 500 is the rms rating

[Kolk1]

Also, if your sub is a 4 ohm dual voice coil, you can wire the sub for a 2ohm load at the amp. Its very easy to find a 500watt rms amp at 2ohms.

[deaftosociety]

i got one more question for yall since yall are into the sq and spl stuff and seem very knowledgeable, are you guys not afraid of messing up yer alternator or any other of the electrical components because i was looking around and im kinda worried i may push my little alternator too much. I mean for some reason i dont think its exactly on the heavy duty side being that its in a pretty much a renault you think itll be able to handle that 1000 watt amp fine ?

[Kolk1]

I ran a 2500 RMS Set up for almost a year in my car. Stock battery up front, Stock Alternator, and a small SVR battery in the rear. I ran this setup until I had about 30k miles on the car, I now have over 40k miles, but currently only have about 7-800 RMS, small 2 channel for front components, and a small 2 channel on my pair of 8s. And I have never had an issue.

I also have done "The Big 3" as well. You can search and find other posts I have made explaining what that is.

[Jemdawg]

Yeah, the stock alternator is fine, and as Kolk1 said, the Big 3 will help out if your lights dim a bit.

I'd give you my aim sn, but I'm always either in the office or at a class, but I'll try to check the forums as much as I can to help out. If you don't want boomy, shake the ground bass, go sealed. I'd never go bandpass or ported, but that's just my opinion. A lot of people like ported boxes, but they're harder to design and you risk port noise and frequency peaking. In other words, generally in the lower range 22-80 hz, it will be a bit louder. That is why you see a lot of ported boxes in SPL comps. For SQ, I'd say sealed is the best. You get a small box, so you save on space, and it generally doesn't cause peaking. You'll get a nice punchy sound, but, trust me, it will get low and deep when it has to.

[deaftosociety]

hey man thanks for all yer help jem i got one more question, and its kinda confusing me ive been looking at wiring diagrams, and it looks like my 4 ohm dual voice coil can only runs at 2ohms per voice coil if i understand the wiring stuff and im trying to figure out from lookin at wiring diagrams it looks like the 500watt 4 ohm amp i have wont hook up to it that easy unless i have one more sub sorry man this sub stuff is new to me.... ive done amps and all but this is alot different just wondering if i have the right idea running the 4 ohm 500 watt amp or should i be using something else and if you can hook me up with a wiring diagram i would appreciate it lol peace man

[Kolk1]

Ok, first, is it a dual 4 ohm sub, or a dual 2 ohm sub, im reading both answers in your posts.

If its a dual 4, then you can run either a 2ohm load, or a 8 ohm load at the amp.If its a dual 2, then you can run either a 1ohm load, or a 4 ohm load at the amp.

With that said, depending on which one you have, will depend on how you want to wire it.

Also, is you amp a 2 channel, or a Mono block, if its a 2 channel, is it bridgeable to 1 channel?

Once you have the answer to these questions, and want a wiring diagram, go to rockford fosgates web site, and just answer 2 simple questions.

http://www.rockfordfosgate.com...d.asp

[ds08versa]

JL Audio 250/1 will be enough and if you want more 500/1 the cleanest amp, and they are very effiecient