Another MM12 bites the dust

jamas33

ok.. here goes.. second mm12 to bite the dust for me.... Last time I just went to CC and with alot of prodding and threats.. they exchanged it for me.. now.. I got another blown one.. its ok.. its registered with Polk and I was just wondering where to send it to? and how long to get it back? Anyone had these experience? Do you know roughly how much it cost to ship this?

MacLeod

The MM12 seems to be faulty. There have been a ton of complaints on here over the last year or so of them dying.

Email Kim. He's one of the moderators and the Customer Service Mack Daddy. He can tell you what you need to do.

jamas33

thanks... yeah seems like the first generation MM12 had these blow out problems... my first one was first generation then the second one doesnt seem to have these problems. I'm only pushing 3-400 watts rms on them...

J

MacLeod

I wouldnt go any more. Virtually all the stories of dead MM12's were using 450-500 watts and a few were even going beyond that.

exalted512

call polk, dont email. turn around time is usually less than 2 weeks from the time you send it. ive had a lot of experience with that:(
-Cody

MacLeod

Really? Ive emailed Kim a couple times with a question and he got back to me by the next day. Maybe ya just gotta catch him at the right time.

max3

Yeah I've been through a few MM2124 I'm glad I bought the warranty that way I don't have to complain at the store I can just slap them with a reciept and be like get me another ****. Does anyone know for sure if Polk has addressed the power handling problem in there new line?

MacLeod

Im on here pretty regularly for the last year or so and I cant recall too many, hell none at all, complaints of a new Momo sub assuming room temperature. So apparantly they did fix the power handling.

max3

So your saying the 2004 or 2005 have problem solved? Cause I've been thourgh 3 MM2124 over the past year. room temp?

exalted512

i havent heard of any 2124s blowing...
-Cody

max3

Originally posted by exalted512
i havent heard of any 2124s blowing...
-Cody

I've had the pleasure three times. I'll probably try another set of Polks but if they go again I'll switch to a different brand.

exalted512

talk to me when youve blown 6 subs;)
-Cody

MacLeod

"Assuming room temperature"

Thats what things tend to do when they die.

Youve blown 3 MM2124's?!?

Im surpised at that. I dont mean to be a dick but it kind of leads me to believe youre doing something wrong. Are you overpowering them or something?

max3

I know I'm overpowering them. I've hooked up a JL 500/1 to a MM2124. They are fine up till I play one song . This is why I think they don't handle overpowering very well.

neomagus00

um... yeah, that's why it's referred to as OVERPOWERING them... cause it's OVER the POWER they're rated to handle... imo you shouldn't be getting free **** from polk, or anyone else for that matter, cause you're destroying something with complete disregard to anything but your own momentary satisfaction, and with the full knowledge that you're using the equipment improperly.

that's like hitting a nail into a wall with a sledgehammer and then expecting the drywaller to fix it for free... 3 times!

PolkThug

Originally posted by max3
I know I'm overpowering them. I've hooked up a JL 500/1 to a MM2124. They are fine up till I play one song . This is why I think they don't handle overpowering very well.

:rolleyes:

max3

Originally posted by neomagus00
um... yeah, that's why it's referred to as OVERPOWERING them... cause it's OVER the POWER they're rated to handle... imo you shouldn't be getting free **** from polk, or anyone else for that matter, cause you're destroying something with complete disregard to anything but your own momentary satisfaction, and with the full knowledge that you're using the equipment improperly.

that's like hitting a nail into a wall with a sledgehammer and then expecting the drywaller to fix it for free... 3 times!

Subs are supposed to be able to handle extra power. I followed that divide the RMS by .75. I have my gains down and my volume is at 10-15 out of 40. I'm not doing this on purpose.

MacLeod

Neo's right. Those subs are rated at 400 watts to let you know that 400 watts is what theyll handle.

Giving a 400 watt sub 600 watts is whats killing them, not faulty build quality.

If you want to keep running your 600 watt amp you need to get a sub that can handle 600 watts.

Jstas

Originally posted by max3
Subs are supposed to be able to handle extra power. I followed that divide the RMS by .75. I have my gains down and my volume is at 10-15 out of 40. I'm not doing this on purpose.

Wait a minute her pal, back that truck up for a second! Who said that subs are supposed to be able to handle extra power? Just because some can doesn't mean they all should. Should all subs be under-rated so that they will handle the extra power that you seem to think they should? How could a company justify a $300 sub that only handles 200 watts of rated power when Pyle is over here sellling a $60 sub that is rated to handle 500-1000 watts?

What's this "divide rms by .75" BS anyway? How about you just run 400 watts or less to the subs? Gain adjustment would work for maybe 20-50 watts of overpowering but pushing 200 watts past thier power handling limit...nothing is going to alleviate that. Specs are tested, defined and published for a reason. They aren't just pretty squiggles and dots on the paper for you to wipe your **** with.

This is asshattery at it's finest.

MacLeod

Originally posted by Jstas
Specs are tested, defined and published for a reason. They aren't just pretty squiggles and dots on the paper for you to wipe your **** with.

This is asshattery at it's finest.

ROFLMFAO!!!!!

And this is Jstas at his finest!!! LOLOL!!!

neomagus00

ah, the joy of a clean beatdown... beauty to behold; especially the asshattery bit, that was the coup de grace...

MacLeod

Who's Grace?

jamas33

Yours Truly,
A once loyal polk customer

PolkThug

oops.

jamas33

oops part two

PolkThug

my apologies, lol. I thought you were the other guy, saying you blew even more speakers.

jamas33

Originally posted by PolkThug
my apologies, lol. I thought you were the other guy, saying you blew even more speakers.

darn!!! GOSH!!! GEE WHEEZ!!! "Girls only want boyfriends with sweet skills! You know...like nunchuk skills...bow hunting skills...computer hacking skills... I don't have any great skills!"

MacLeod

Dont let the door hit ya in the **** on the way out!

chakabobo18

Originally posted by jamas33
ok.. here goes.. second mm12 to bite the dust for me.... Last time I just went to CC and with alot of prodding and threats.. they exchanged it for me.. now.. I got another blown one.. its ok.. its registered with Polk and I was just wondering where to send it to? and how long to get it back? Anyone had these experience? Do you know roughly how much it cost to ship this?

I'd recommend you get a much stronger amp than the ones that you have, whichever one or two that you are using to power the subs, because I can look at the model number and tell you approximately how much power they can put out. This is because most major car audio companies do this, especially with their amps. After turning the gain on a amp so high, it will start to clip the sound and send that to the subs, which is a very bad, and one of the easiest ways to fry subs. I'm only telling you this, because of my personal experience. I used to think that the amp's gain was a volume control and man was I ever wrong. Not saying that this is why your blowing subs, but if you are setting the amp's gain too high, or you think that this could possibly be the reason why you keep blowing subs, then holla back at me through email and I'll walk you through some things.

But if your somebody who truly knows how car audio works inside out, then disregard this message. I've wired my own entire system, from the front to the back.

chakabobo18

Originally posted by jamas33
ok.. here goes.. second mm12 to bite the dust for me.... Last time I just went to CC and with alot of prodding and threats.. they exchanged it for me.. now.. I got another blown one.. its ok.. its registered with Polk and I was just wondering where to send it to? and how long to get it back? Anyone had these experience? Do you know roughly how much it cost to ship this?

Man if I speaking of the correct MM12, that can handle 400rms, each then you are under powering this subs, which you try and counter that by turning the amp gain up high, which again only clips the sound that you are sending to the sub.

chakabobo18

There is nothing wrong with Pok's 2004 or 2005 line up, it's the people who don't know how to set there amp's gain to match the output voltage coming off the back of the head unit from the pre amps that destroy these subwoofers. The RMS of a name brand subwoofer is stated in plain english for one simple reason, and that is because it is the maker telling the consumer to not exceed the RMS limit, because continuous exceeding of the limit will eventually cause damage to the sub. How long it takes to damage the sub, all depends on how much power is being used in excess of the RMS limit.

If that isn't the problem, then you may want to start observing your electrical systems power source not the battery , but the battery's power source, the alternator. If you alternator isn't supplying your vehicles electrical system with enough amps to compensate for how many amps your amplifier(s) are drawing, then you will starve the amplifier(s) of the power it needs to supply maximum power to the subwoofers, forcing the amplifier to compensate for the lack of DC voltage with AC voltage. This will rip any car audio subwoofer on the market apart no matter how strong it is.