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Old Jun 19, 2004 | 06:30 PM
  #1  
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180w RMS

Would I be doing an injustice to CDT Eurosports if I powered them with 80w or should I upgrade my amp?
Old Jun 19, 2004 | 06:31 PM
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I have only 75rms going to my comps and they suggest upward to 300ish rms. I think 75 is enough
Old Jun 19, 2004 | 06:34 PM
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if the suggest rms on them is 180 then you will be underpowering them quite a bit but you shouldnt do a lot of damage to them
Old Jun 19, 2004 | 10:08 PM
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Originally Posted by suprropmp
if the suggest rms on them is 180 then you will be underpowering them quite a bit but you shouldnt do a lot of damage to them
Underpowering is bullsh!t. Thats like saying your going to damage your speakers by turning the volume down I have only 75w/rms going to each of mine and it can get loud enough to really hurt your ears with the comps alone.

You dont need to feed them at full power.
Old Jun 20, 2004 | 01:26 AM
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well that may be as long as they are somewhat amped but if you try to run aftermaket speakers without amping them at all you will blow them... I've seen it happen several times
Old Jun 20, 2004 | 06:06 AM
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Originally Posted by HitManSE
Underpowering is bullsh!t. Thats like saying your going to damage your speakers by turning the volume down I have only 75w/rms going to each of mine and it can get loud enough to really hurt your ears with the comps alone.

You dont need to feed them at full power.


what kind of comps do you have?
Old Jun 20, 2004 | 08:58 AM
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i think he has BA's. but you do not need full power unless you plan on putting the radio on full power and standing inside your house to hear them. im sure 80 watts per speaker is plenty. with my cdt cl61a's run off the h/u people complain about how loud they are. 80 per side is plenty.
Old Jun 20, 2004 | 12:14 PM
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Originally Posted by OpTi
what kind of comps do you have?

BostonAcoustics ProSeried6.5's
Actually rated power is upward to 400

http://www.woofersetc.com/product.as...7&1=238&3=1226

The one thing that makes the BIGGEST difference in comps is its Sensitivity.
If you have two sets of comps and one it rated at 89db while the other is rated at 92db. Once you power them both woth 75rms (or whatever) the one rated at 92db is going to be louder. So keep that in mind. An excellent example is the CDT HD62DT comps. They are rated at 92.6db. Even if you run them off your HU they will get loud enough. Then there are speakers like Dyn's which do sound awesome, but the thing is you need to feed them a crap load of power so it can do its thing. Those id say go as high as 200rms each side on those.

The ES620 EuroSport 6.5" Components are actually rated at 150w/rms.
Sensitivity is 92.0 dB so even with 80w, it will get loud enough to bother you.
Nice choice on comps man, those kick @ss I dont know whats with CDT and all those funky colors but they're still great.
http://www.woofersetc.com/product.as...9&1=240&3=1797

Btw-Those are soft dome tweeter, its on on-axis setup. If I were you id try to get those tweets pointed directly as you, you can get a custom location mounted somewere on your door or whatever, its not too big a deal...shouldnt be anyway.
Old Jun 20, 2004 | 12:46 PM
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exactly... thats why my cdts with a 92db rating are solid running off the h/u. sensitivity is alot more important in making decisions on components rather than subs.
Old Jun 20, 2004 | 01:30 PM
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Thanks for the replies guys. It's been a couple days now and i've been hearing mixed advice about how much power the eurosports need. Most are saying that I really need up to 125 - 150 to hear the full potential in clarity and detail from this set.

But I'm thinking i'll just slap em in with 80w and see how I like it. So this might end up being a mute point if I end up liking it.

Hitman > I bought the off - axis setup and was planning on using the stock tweeter locations. Judging from the design of the flush mount of the tweeters I don't think I can move them around too much unlike the crystal tweets that have swivel action. Some people were also saying that LPG26NA tweeters are a good direct replacement for the es tweets that some think are too brite. So you might see the ES tweets for sale in the near future.

Eventually I want to get the stagefront kit with the supertweeters mounted on the dash. However i'm not sure if it's worth it over the Imaging kit that cdt also sells. So many diff. options.

Thanks again guys for checkin out the thread.
Old Jun 20, 2004 | 02:00 PM
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let us know how you like the setup!
Old Jun 20, 2004 | 02:59 PM
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Originally Posted by suprropmp
well that may be as long as they are somewhat amped but if you try to run aftermaket speakers without amping them at all you will blow them... I've seen it happen several times
you won't necessarily blow them. i'm running aftermarket speakers without an amp and it's fine. it really depends on how well the speaker is putting each wattage it's getting to use.
Old Jun 20, 2004 | 04:11 PM
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it also depends on the amount of bass and the volume but I'm just saying I've seen it happen more than once...
Old Jun 20, 2004 | 05:24 PM
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too little power causes excess distortion, and that causes speakers to blow out.
Old Jun 20, 2004 | 05:31 PM
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Originally Posted by HitManSE
BostonAcoustics ProSeried6.5's
Actually rated power is upward to 400

http://www.woofersetc.com/product.as...7&1=238&3=1226

The one thing that makes the BIGGEST difference in comps is its Sensitivity.
If you have two sets of comps and one it rated at 89db while the other is rated at 92db. Once you power them both woth 75rms (or whatever) the one rated at 92db is going to be louder. So keep that in mind. An excellent example is the CDT HD62DT comps. They are rated at 92.6db. Even if you run them off your HU they will get loud enough. Then there are speakers like Dyn's which do sound awesome, but the thing is you need to feed them a crap load of power so it can do its thing. Those id say go as high as 200rms each side on those.

The ES620 EuroSport 6.5" Components are actually rated at 150w/rms.
Sensitivity is 92.0 dB so even with 80w, it will get loud enough to bother you.
Nice choice on comps man, those kick @ss I dont know whats with CDT and all those funky colors but they're still great.
http://www.woofersetc.com/product.as...9&1=240&3=1797

Btw-Those are soft dome tweeter, its on on-axis setup. If I were you id try to get those tweets pointed directly as you, you can get a custom location mounted somewere on your door or whatever, its not too big a deal...shouldnt be anyway.


Good stuff, thanks for the info. I'll keep that in mind when i shop around for some comps. My infinity 6.5 two ways are decent but i'm looking in to get a comp system.
Old Jun 20, 2004 | 05:34 PM
  #16  
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Originally Posted by nismos14
too little power causes excess distortion, and that causes speakers to blow out.
Too little power, meaning not enough to play at the volume you wish to play.

You can run those comps at 10 watts RMS if you wanted to, but if you try to turn up the volume you will clip the amp and thus kill the speakers. You just need to feed enough power to comfortably play at the volume you like. If you push any amp, 10 watts or 500 watts, to it's max output then it will clip and ruin your speakers.

I think for most people 300 watts for components is way overkill; except for maybe SPL competitors. I am running 140 watts and I rarely, if ever, use it all.
Old Jun 20, 2004 | 10:21 PM
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^That is why you set your gains correctly^
Old Jun 20, 2004 | 11:44 PM
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you will only blow speakers with "too little power" if you try to compensate for the lack of power by turning up the volume to the point of clipping. speakers CANNOT blow due to too little power.
Old Jun 27, 2004 | 12:49 AM
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Well I managed to install the eurosports. With only 80w these things get pretty loud and they sound really nice. I can't imagine what these things would do with the full 180w.

I think I still might need a 4 channel amp anyways to power the rear cl6x cause they sound very feint and crapy running off the stock HU. I just turn em off in the mean time.

First impressions of the ES620's is that they are very detailed. I was listening to a song and I could actually hear the singer gasp for breath.

Midbass is pretty good, but probably not as good as some rainbows. Still it's enough to keep up with my e12o which makes me happy.

Tweeters seem a little too brite at times. Others with sensitive ears have expressed the same. I have a pair of LPG25nfa silks on their way so hopefully they will sound better. The stock cdt's also look kinda funny with the plastic flush mount. I thought the crystal mobilesound tweeters with the swivel mount looked and functioned better because they were metal.

Crossovers are very well built but huge. Luckily I managed to fit them underneath the kick panels. On the other hand I have no idea where the upstage kit crossovers are gonna go.

The speakers mounted in the stock position provides pretty good imaging but I think it could be better. Supposedly the upstage kit will create a phantom center which will be nice because currently the sound seems to be concentrated on the left and right.

That's all i can think of right now. I'm sure i'll have more input once i log more hours in my car. Thanks for reading.
Old Jun 27, 2004 | 11:06 AM
  #20  
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80w will take it a long way 90% of the time, I doubt you'll even turn it up to use all that power.

Here is one thing about some comps that even confuses me. Some sound really nice, but an awesome test is playing female vocals.

Example: Jewel

Yeah, not my favorite kind of music either but it can really show you how well these things can play. Some comps make it sound beautiful, while others make it sound like she's killing flys while singing. You dont want to hear every single little detail on the track. Hearing the singer gasp for breath is one thing, but as long as it doesnt blow up the small things completly out of proportion then its all good.



Seems like you got one hell of an SQ setup going. As for your rear speakers, the fronts are enough. Some people even completley disconnet/remove the rears. They arnt 100% necessary.
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