Subs Coil Blown...

Alfy

Just last night, my sub suddenly stopped completly, I was listening to it at a fairly low volume too,

I was hoping it was my amp fuses so i took it into the place that fitted everything for me, and they did a check on the sub & confirmed the coil is blown, I did read up on the subs on this forum before purchasing and I made sure to wear it in for 40 hours, I went to the trouble of getting the box size the same as recommended too, so I cant see why its blown up,

Im running it off a Kenwood 1200W amp which is 500RMS i beleive it took me about 2 months to get it worn in but was well worth the wait, Im just wondering is there anyway i can get the coil fixed Ive been told to just throw it away but I cant afford to do that now.

Any suggestions.. im based in the UK & theres not many Polk Momo dealers, if any at all.

neomagus00

i'm assuming you're talking about the mm12, cause that's the only polk sub that does 500 wrms. is that right? if so, send it to polk and they'll replace it (assuming you have a proper warranty). that is unusual that the coil burned at a low volume, especially if it was installed by a shop. i dunno, there seems to be a lot of this happening, no one knows why...

Alfy

Ive just opened the plastic wallet that came with the sub, it contains

1 x Manual with a mention of 3 year warranty at the back
1 x Polk Momo sticker
1 x Register your items online form..

The subs a MM124, does this Manual I have represent my warranty or should there be something else?

If this is the warranty, I do live in the UK, do you think Polk will be kind enough to transfer it all the way back to me if they do repair it?

Thanks for the info & quick response I appreciate it.

exalted512

you need a reciept from an authorized dealer
-Cody

Alfy

I bought them from www.caraudiodirect.com it says they come with a 3 year warranty in the description but I no longer have my receipt.

Oh Well hmm guess it has to go in the bin.

Anyone recommend a sub equal to the MM124 but with a better reliablility factor? I mean I tryed everything I did to keep it running smoothly now im left bassless.

ANy suggestions for a new sub would be good, I was looking at the opening range of JL Audio the W-04 i think it is and the R.E. opening range too..

MacLeod

Forget the Momo sub. If you get a replacement youll just have to break it in for another 5 years and itll just blow again.

These are my favorite subs in the $200 range that can handle 500 watts:

Orion P12 $250
Crossfire BMF $250
MTX Thunder7500 $250
Diamond Audio CM3 $225
Image Dynamics IDQ $200
JBL GTO $220

$300 range

Xtant X1244 $300
Kicker L7 10 $300
JL Audio 12W6 $325

Alfy

thanks, Ive checked those subs Im intrested in the MTX Thunder but the UK sucks for you its only $250 etc but to us its £250 which is around $450.

What do you think of the Alpine Type-S subs?

or the opening range from the R.E. line?

also just out of curiosity how come your on the polk forum recommending other brands just curious hehe thanks for the help

exalted512

RE makes good subs
and as far as being on a polk forum and recommending other brands
when polk starts making a sub that doesnt blow thats comparable to the mm12...ill start recommending it
dont buy JL...theyre way to expensive for what you get
what does your amp put at out?
that could be a deciding factor in which subs youll be getting
-Cody

Jstas

Uhhh...you'd better check that exchange rate again. It's not neraly that big. 250 UK is only like $300-325 US. Then again, what does it matter you? If you were in Canada and on the suck **** end of the exchange rate I could see it being a problem but since we are on the suck **** end of the UK/US exchange rate, the exchange on the price should be invisible to you. It may be more expensive for you because of the extra cost to get it to the UK but it's certainly not the exchange rate.

Alfy

Hey quick responses nice..

ive been looking at getting 2 subs now, so atleast if 1 blows hopefully 1 will keep pumping..

Ive found some good deals on the Audiobahn AW1200Q range

heres my amp details:
http://caraudiosecurity.com/catalog/product_info.php+cPath+3_92+products_id+2507

these Audiobahn subs are 400W-RMS my amp says:
1200 Watts MAX Power
2 x 150 Watts RMS @ 4 OHM
2 x 300 Watts RMS @ 2 OHM
1 x 600 Watts RMS @ 4 OHM Bridged.

so I can run 2 of those subs @ 100RMS less than the sub.. is that recommended ive been told to Overpower and then ive been told to unpower & then somepeople say just match it.. Its all so confusing.

any more info would be great thanks...

Or would this be a possibility the lower model the Sub i had the one you mentioned above... are these alot better for reliability? and would 2 of these be bassy enough for a fairly big car show as far as bass goes.

neomagus00

Originally posted by Jstas
Uhhh...you'd better check that exchange rate again. It's not neraly that big. 250 UK is only like $300-325 US. Then again, what does it matter you? If you were in Canada and on the suck **** end of the exchange rate I could see it being a problem but since we are on the suck **** end of the UK/US exchange rate, the exchange on the price should be invisible to you. It may be more expensive for you because of the extra cost to get it to the UK but it's certainly not the exchange rate.

not necessarily true... par example, a $1.00 bottle of pop here costs one pound there for the same exact thing. same with lotsa clothes and school supplies (i visited for a summer)...

neomagus00

Originally posted by Alfy
so I can run 2 of those subs @ 100RMS less than the sub.. is that recommended ive been told to Overpower and then ive been told to unpower & then somepeople say just match it.. Its all so confusing.

okay, i tend to get an amp that's a little more powerful than what i need, just to be sure of the headroom; people say 'overpower' so you don't drive the amp into clipping, people say 'underpower' so you don't push the speaker too far, and people say 'get it exact' in order to not have to deal with either of those.

also, audiobahns subs tend to be geared toward looks, and won't match the mm124 in sound quality (generally speaking). lastly, re's bottom line has bad tinsel slap (i'm referring to the re8 that's sitting at my feet, and it buzzes like a bee at high output... but it reaches amazingly low and loud for an 8... go re!)

and my bad for 2 posts

exalted512

shiva
-Cody

Alfy

Hmm, Ill have to keep looking around I do want it too look stylish that was 1 of the reasons i looked into the audiobahns, but if the sound quality is far from the M124 then im gonna have to forget that,

the R.E8 looks too thin for my taste the outside edge looks weak.

Thanks again, ill post some more here if i find a new sub.

exalted512

im getting an RE8 pretty soon...i didnt know it had tinsel slap...
-Cody

Alfy

I was thinking of the 12 sorry,

http://www.caraudiodirect.co.uk/product_info.php?products_id=2982
^ that one to be more presice, what do you think 2 of those?

and why are so many people getting 8" subs now? whats with that, what happened to the good old 12"

neomagus00

i think that for the price it's an awesome line. i bought mine for a little low end reinforcement for a pair of HT bookshelf speakers for the dorm... but a lot of people don't want to waste their whole trunk on 2 12's when you can get nearly the same thing with a pair of 8's in way less space, and the whole "holy crap, that sound is from 8's!!!" thing...

exalted512

yea...the 8 was $35 shipped...
i got it to play with...but i think ill end up giving it to my dad
-Cody

neomagus00

Originally posted by exalted512
yea...the 8 was $35 shipped...
i got it to play with...but i think ill end up giving it to my dad
-Cody

what?!?! i got mine for 60!

Alfy

So your telling me 2 high quality 8" subs will have the same kick & bass as 1 x 12"? and will be suitable for RnB, rap hiphop and good for Dance music etc?

if so how about I get 2 x 8" & then 1 x 12"

have the 8" on the left & right of the boot & the 12" dead center..

Hows that for a setup

exalted512

Originally posted by neomagus00
what?!?! i got mine for 60!

i got the hookup:D
Alfy-
i wouldnt suggest mixing different size subs...8s and 12s, even within the same brands and models, can sound very different...it might be hard to get them to blend well together
as far as will 2 8s be louder than 1 12
well lets see
area of a circle=pi r^2
area of 2 8s=32pi
area of a single 12=36pi
so given all things equal, a single 12 would be louder due to more surface area
and for rap and hip hop, i think a 12 would serve you better than an 8"...they tend to go lower and have a deeper sound which is what most of the bass in rap is meant to do
-Cody

MacLeod

Originally posted by neomagus00
a $1.00 bottle of pop here costs one pound

Pop?!

You must be a yankee! LOL

LittleCar_w/12s

Pop.. hehe..
I had to teach my wife that here in TX we call it all 'Coke' Ie, "what kind of coke do ya want?"

neomagus00

damn texans, they can't decide what kind of POP they want...

alfy - if you want to get inventive, you can do the 2 8's and 1 12 thing in the following way - use the 8's from say 125 Hz down to perhaps 55, then the 12's from 55 down - if you have them all in sealed boxes, this will help; especially with the 12, cause then you don't have to use a subsonic filter, and it's amazing what that "non-audible" info from 0-20 Hz adds to music...

if you don't want to do that, i vote 1 or 2 twelves for hiphop... if you can't fit 2 12's go with 2 tens... if you can't fit that, go with 1 12... all in all, bigger is better for hiphop, cause it doesn't need to be crazy tight and it does need to be really deep.

exalted512

yea...
"we always say what kind of coke do you want? we got sprite, coke, dr pepper...etc"
or in my house its more like "what kind of coke do you want? we got hill country fare lemon lime, dr b, orange soda..."
lol...
-Cody

max3

Originally posted by neomagus00
damn texans, they can't decide what kind of POP they want...

POP POP that sounds just like my friend from that state nobody knows anything about called IOWA

I have a real problem now. I'm worried about my sub cause I got a MM2124 and I want to run a JL 500/1 to it. Is mine gonna POP or can it handle the extra power?

MacLeod

Momo subs dont handle overpowering well at all. If youre going to stick with the Momo sub I recommend keeping the gain way, way, way down. Great amp tho, keep it!