Mids that wont blow

[phatcat600 10+ year member]

Yeah Profile is not known to be a top tier company but their refurbs have to be some of the best bang for the buck around. I think I paid $70 for this after shipping, but who knows how good it is since the speakers connected to it dont seem to last. Its rated at 150w per side and so were the comps.

Anyway any recommendations? I hate blowing mids! They are such a pain to replace, dealing with door panels is never fun.

 

[2002XLT 5,000+ posts]

in short, you didn't have enough power and were clipping them, which led to them burning up.

This is pretty much what i think as well, which means that until you set your amp right, you will keep burning them up. How are you setting the amp?

 

[Hintzyboy 5,000+ posts]

Unless he had dud speakers (unlikely since both blew at the same time) I am assuming the amp doesn't do rated power cleanly. If he set his amp for rated power, he probably clipped the signal.

Did you throw a DMM on the speakers? Might be the amp if both sides just stopped working

 

[phatcat600 10+ year member]

Shoot, I havent messed with the stuff in a year I have no idea.

Not enough power to the amp or not enough power to the speaker? Last I heard you couldnt blow a speaker from not giving it enough power. Maybe Im wrong.

I think I had it set to start at 75hz or so...set up the gains with a DMM. I dont remember at all. Maybe I should get a better amp and some new mids.

Any recommendations for around $100? I think the mids I had were like 70 bucks to replace and the whole set was about $180 so I dont need anything real expensive to be happy with the sound.

 

[phatcat600 10+ year member]

No they didnt stop at the same time. This is going to sound really bad but Im so lazy that I installed 1 side, and after about a month that one blew. Then I replaced that same side with the other mid. I was real busy at the time and couldnt finish my install.

I only tested the amp with the dmm, never the speakers

 

[2002XLT 5,000+ posts]

Shoot, I havent messed with the stuff in a year I have no idea.
Not enough power to the amp or not enough power to the speaker? Last I heard you couldnt blow a speaker from not giving it enough power. Maybe Im wrong.

I think I had it set to start at 75hz or so...set up the gains with a DMM. I dont remember at all. Maybe I should get a better amp and some new mids.

Any recommendations for around $100? I think the mids I had were like 70 bucks to replace and the whole set was about $180 so I dont need anything real expensive to be happy with the sound.

What we are saying by not enough power is that your amp is not doing rated, so when you set it at what you thought it would do (150) and it cant actually do that much, you are sending "Dirty" power to it, which is basically just clipped signal.

 

[Hintzyboy 5,000+ posts]

Shoot, I havent messed with the stuff in a year I have no idea.
Not enough power to the amp or not enough power to the speaker? Last I heard you couldnt blow a speaker from not giving it enough power. Maybe Im wrong.

I think I had it set to start at 75hz or so...set up the gains with a DMM. I dont remember at all. Maybe I should get a better amp and some new mids.

Any recommendations for around $100? I think the mids I had were like 70 bucks to replace and the whole set was about $180 so I dont need anything real expensive to be happy with the sound.

You can't blow a driver by underpowering it. But if the amp only puts out clean power to 75w, and you set the gains for 125w (just an example), you'll clip the signal. It doesn't matter if the driver's RMS rating is twice what you throw at it if the signal is clipped. I would first check all your drivers with a DMM to make sure they are blown, then open up the amp and look for burnage. Determine for sure what needs replacing, and then we can be of more help.

 

[helotaxi 5,000+ posts]

If the speakers are rated for 150W thermal power handling, then 100 or even 150W won't cook them. That doesn't mean that a lot less power can't blow them. There are two ways to blow a speaker, one is the thermal way which everyone seems to concentrate on and the other is the mechanical way which most seem to ignore. I would put money on the HP crossover being set to low for the amount of power being run and the install location. Send too low a freq to a mid and they will exceed their mechanical power handling with a lot less than rated power. Clipping has nothing to do with that.

As far as the Profile amps, I've yet to hear anything genuinely bad about them. Also just because an amp is distorting audibly doesn't mena that it's clipping. Clipping will get the amp to produce more power than normal (though not really usable power) but poorly designed/built amps can get into aubile distortion well before they clip. HU amps are a perfect example.

 

[tcguy85 10+ year member]

What we are saying by not enough power is that your amp is not doing rated, so when you set it at what you thought it would do (150) and it cant actually do that much, you are sending "Dirty" power to it, which is basically just clipped signal.

i'm saying for the volume he must listen at, the amp even if putting out rated power, still isn't enough. buy a better more powerful amp. read the thread i just posted up and maybe you'll understand what i mean.

 

[phatcat600 10+ year member]

Ok I see what you guys are saying. Thanks a lot for the information. The amp must not have been putting out a clean 150w because the tweeters were still playing. Only the mids went out so the amp must still be working "correctly." Im going to get a higher quality amp I guess, maybe an SAX 100.2 to match my SAZ 1500D.

Now what mids would be good for a little over $100? Mine are discontinued

EDIT: Sundown 100.2 is to much for me, Ill ask over on the amp forum when Im ready.

 

[2002XLT 5,000+ posts]

keep the amp if your on a budget, just know that you need to set your gains a little lower, or lower your power expectations. If its rated at 150, id say it would do atleast 100 rms.

 

[tcguy85 10+ year member]

mach 5 mids, the id oem that hessdawg is selling, both are great mids.

 

[Hintzyboy 5,000+ posts]

If the speakers are rated for 150W thermal power handling, then 100 or even 150W won't cook them. That doesn't mean that a lot less power can't blow them. There are two ways to blow a speaker, one is the thermal way which everyone seems to concentrate on and the other is the mechanical way which most seem to ignore. I would put money on the HP crossover being set to low for the amount of power being run and the install location. Send too low a freq to a mid and they will exceed their mechanical power handling with a lot less than rated power. Clipping has nothing to do with that.
As far as the Profile amps, I've yet to hear anything genuinely bad about them. Also just because an amp is distorting audibly doesn't mena that it's clipping. Clipping will get the amp to produce more power than normal (though not really usable power) but poorly designed/built amps can get into aubile distortion well before they clip. HU amps are a perfect example.

You's so smawt I've never heard anything bad about Profile either. Of course, tons of people run Hifonics stuff, and that sure doesn't put out rated power. I don't think clipping can be ruled out though.

I know specs aren't everything, but he had his HPF set at 75 Hz, and the driver's frequency range is 55Hz-7kHz. The 130w RMS rating does require a 100Hz HPF though (as per the specs listed here)

 

[Hintzyboy 5,000+ posts]

If you just want to replace your current mids, woofersetc has them:

http://www.woofersetc.com/index.cfm?fuseaction=product.display&Product_ID=1562

 

[T3mpest 10+ year member]

100 watts of "dirty" power is the same as 100 watts of clean power. The speaker doesn't care what the signal looks like, just the average power under the curve. If he blew them thermally, he was putting over their RMS onto the speaker for an extended period. Whether he does that by using a smaller amp and clipping it to exceed RMS or whether he does it by using a big amp and exceeding RMS without clipping, it wont' matter. He'll still be using too much power and frying the speakers.

Anyway, if he set the gains properly with a DMM then he most likely blew the speakers mechanically. Most likely alot of bass heavy music and too low a xover point.