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FoxPro5
10-06-2005, 09:46 AM
How much power are you running to them. I pan on biamping them at 85x2 per speaker :uhoh: Thoughts?

RoudyruffKK
10-06-2005, 07:03 PM
u need a 4 channel amp, i'm not sure if you mean you're giving each side 85x2 or you're using an 85x2 bridged to give each speaker 170rms

FoxPro5
10-06-2005, 07:41 PM
u need a 4 channel amp, i'm not sure if you mean you're giving each side 85x2 or you're using an 85x2 bridged to give each speaker 170rms

I edited my post because I'm a complete noob and had the impression that if I used my 4 ch and put two channels on each speaker I would push 170 watts (85 x 2) of total power. I know have learned that this is not the case. And have also determined that the actual power at 3 ohms would be 113 watts rms:crazy:

But I'm still curious how much power y'all are running to them if the are rated at 125 watts continuous.

Tbird006TheKing
10-06-2005, 07:47 PM
Pro60s can handle 400 x 2, they should be okay off 175 x 2 but 85 is too low

SSS 18734
10-06-2005, 07:49 PM
I would think you would need quite a bit more power to properly run those speakers... I've heard a few people say they need around 300RMS a piece to really shine.

XtrmAudioCncpts
10-06-2005, 08:13 PM
yeah i have mine at about 225 and they still need more power

FoxPro5
10-06-2005, 09:21 PM
So what amp would give me ~250 x 2 @ 3 ohms? It would have to be able to do around 200 x 2 @ 4 ohms right?

White Ram
10-06-2005, 09:41 PM
I am pushing approx 225 @ 3 Ohms (I think....its a Hifonics zx6000 2005 model??)per side and mine seem to lacking in the midbass area. Gonna try to see if matting the doors is gonna help any. I might try bi-amping them to see if it will make any changes to them. Suggestions??

FoxPro5
10-06-2005, 09:54 PM
I am pushing approx 225 per side and mine seem to lacking in the midbass area. Gonna try to see if matting the doors is gonna help any. I might try bi-amping them to see if it will make any changes to them. Suggestions??

From what I've read, a properly dampened/deadened and sealed door it the best way to improve the midbass response. If you don't have any material in there so far check this site out for the best options out there: http://www.sounddeadenershowdown.com/index.shtml

txred0810
10-07-2005, 02:37 PM
Yeah i'm pushing my pro60s with a xenon200.2 and gettin about 230-240 per side and they were lackin a lil midbass at first. Dampened my door thoroughly and they stand out quite a bit more though they could still use some more power. Wish i could find an eclipse 34230 so i could really make em shine or somethin around the 400x2 at 4 ohm level.

FoxPro5
10-07-2005, 02:54 PM
Yeah i'm pushing my pro60s with a xenon200.2 and gettin about 230-240 per side and they were lackin a lil midbass at first. Dampened my door thoroughly and they stand out quite a bit more though they could still use some more power. Wish i could find an eclipse 34230 so i could really make em shine or somethin around the 400x2 at 4 ohm level.

Not to nit pick on the power, but that's 230-240 at 3 ohms correct? Wouldn't 400x2 @ 4 ohms be equivalent to roughly 533 @ 3 ohms!!! Which is more than 4 times the rated power of the speaker? Not saying that's bad, but I'm tring to see how much power (applied intelligently of course) these babies need to reach their potential.

FoxPro5
10-09-2005, 02:52 PM
Throw me some two channel amp suggestions that would make these puppies shine. Been looking at...

MBQ raa2400
ED Nine.2x
US Amps US600

Others???

Eugenics
10-09-2005, 02:59 PM
have you bought them yet? because i'd look at some different speakers. i started out wanting pro60's

SirSyko
10-09-2005, 03:14 PM
Mine are hooked up to a phoenix gold tantrum 600.4, which puts out 300x2 @ 4 ohms. I only have a door kit for dampening and the midbass is pretty good, much better than I had it in the Camaro. For amps Id suggest a Diamond D5600.2, or a PG 500.2, or for serious power, find what i have, 600.4.

StuartV
05-17-2006, 03:25 PM
Any more word on this?

I have multiple questions.

I'm planning to bi-amp these speakers and use a Carver 90x2 for the tweeters.

For the mids, I have two Carver KMOS2200 amps and I can either use one to drive both mids, or one each, bridged. These amps are rated at 100Wx2 into 4 ohms, 170x2 into 2, or 340x1 bridged mono into 4 ohms.

Q1) what is the impedance on just the mid driver?

Q2) Based on what you have said here, it sounds like maybe I should run both amps and pump ~340W per side into the mids. (I don't know exactly what it would really be, since I don't know the impedance of the 6.5" drivers). Should I? Or should I stick to 100W (or whatever it is, depending on the driver impedance) per side by just running one amp to drive both mids?

Thanks!


- Stu

Kickerkitty
05-20-2006, 07:15 AM
I just got done running 400+ to each speaker in my setup, they got really loud but I could tell it was more than they needed, the midbass was violent by the way! I have a suspicion that the 300 rms range is about right, later next week I will be switching amps to a 150x2 and I have a feeling they will sound just fine.

Echo42987
05-20-2006, 08:14 AM
I have mine at 250 each. I'm runnin' the Z's up front and the pros for the rears and they seem to love the power! It seems that you could easily put more power to these to give them a little more kick but 250 seems to truly make them shine very good....IMO

I love my setup off the QAA4250...it's the best amp to power all four speakers

-Nick-

adam71
06-08-2006, 04:26 PM
Had to bring up this thread one more time for one more questions. I may be picking up a set of the pro60s and was wondering about power.

If I were to run these active, what is the most I should give the tweeters??

FoxPro5
06-08-2006, 04:53 PM
Had to bring up this thread one more time for one more questions. I may be picking up a set of the pro60s and was wondering about power.

If I were to run these active, what is the most I should give the tweeters??

Wow...from the grave bro.

How much were you planning to give them??

jluv
06-08-2006, 07:07 PM
I have a spin on that last question - what is the impedence of the woofer and tweeter separately? I have this set right now on a PPI A600.2, getting about 225 per side. They sound great. I want to leave that amp on the mids without giving up any power, and throw a 50x2 (at 4 ohm) at the tweeters. If the tweets are 3 ohm, my math tells me that would be 75w to each tweet. To me, that sounds like plenty. Is it possible, though, that the mid and tweets aren't both 3 ohm, and the amp just sees that load at the crossover?

Starky
06-08-2006, 07:21 PM
arent Pro 60's and Z6's different?? the Z6's take 400 watts...the pros only take 125 watts RMS.....

Boston Pro 60's (http://www.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=20&product_id=296)

the Z6's Take 400....

The Z6's are these (http://www.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=56&product_id=216)

And btw FoxPro...the MB Quartz amps you sell are awesome For Z6's

adam71
06-08-2006, 07:55 PM
Wow...from the grave bro.

Well, not really. The last post was May 20th. Someone else brought it back from last October. Other than that I thought this was a better idea then starting a new thread. At least now I know I'm talking to someone who has these speakers.


How much were you planning to give them??

I have a PRS-X720 for the woofers which is rated 244 watts @4ohms.
I have a PRS-X320 that is rated at 136 watts @ 4ohms.

The only thing is that I don't know what they would put out at 3ohms AND I have no idea what the individual drivers resistance would be when they're not connected to the supplied crossovers.

walkychalky
06-08-2006, 10:27 PM
why do they rate em at only 125 but they need 200+ to "shine"

im gettin the 50's and am gonna be runnin em off of ~150 rms per side......i hope thats enuff

FoxPro5
06-08-2006, 10:43 PM
Well, not really. The last post was May 20th. Someone else brought it back from last October. Other than that I thought this was a better idea then starting a new thread. At least now I know I'm talking to someone who has these speakers.



I have a PRS-X720 for the woofers which is rated 244 watts @4ohms.
I have a PRS-X320 that is rated at 136 watts @ 4ohms.

The only thing is that I don't know what they would put out at 3ohms AND I have no idea what the individual drivers resistance would be when they're not connected to the supplied crossovers.

136x4 = 544/3 = 181w at 3 ohms.

I don't know enough about passive design to tell you if the tweets are indeed 3 ohm also. Someone with a pair would have to test them to know for sure.

More power = more control. Applied intelligently, you can run as much as you want. It's certainly not needed...and it would be overkill, but you won't kill them unless you neglect to level match, improperly cross them over and have a bad ear for distortion.

FoxPro5
06-08-2006, 10:48 PM
why do they rate em at only 125 but they need 200+ to "shine"

im gettin the 50's and am gonna be runnin em off of ~150 rms per side......i hope thats enuff

Consider that most class a/b's are about 50% efficient and also take into account that music is dynamic and you will see that what it comes down to is not rated power, but having the dynamic head room for a speaker to 'shine.' Some speakers are notoriously power hungary, Bostons are one of them...both the Z's and the Pro60's to my knowledge.

FoxPro5
06-08-2006, 10:56 PM
arent Pro 60's and Z6's different?? the Z6's take 400 watts...the pros only take 125 watts RMS.....

Boston Pro 60's (http://www.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=20&product_id=296)

the Z6's Take 400....

The Z6's are these (http://www.bostonacoustics.com/car/car_product.aspx?category_id=14&family_id=56&product_id=216)

And btw FoxPro...the MB Quartz amps you sell are awesome For Z6's

Doubling the power results in a 3 dB gain. Both those speakers a very well made and can handle all the power you got. The issue really is the law of diminising returns....you could run a Quart bridged to each side if you really wanted to, but you're really not gaining much other than sheer decibles. Hell if it was feasable and I could afford it I would run 7 pure class A's to every one of my speakers in my car :crazy: This however would be stupid and as good of results could be met with more conventional means.

Starky
06-09-2006, 01:37 AM
So...your saying that the Boston Pro 60's rated at 125 could take 400 watts? with out burning?

FoxPro5
06-09-2006, 07:40 AM
So...your saying that the Boston Pro 60's rated at 125 could take 400 watts? with out burning?

Sure, why not. Again just because your amp puts out 400w doesn't mean the speakers see all that power all the time for reasons I already mentioned. It might not be economical, but would be just fine. In fact, you'd be better off with 400w than 50w for many reasons. It all depends on how clean the signal is. Hell 25w could fry them if you drove the amp into clipping for an extended period of time.

As I've said somewhere else on the site, there's actually no such thing as RMS power. The proper term is average power. I use the term RMS power anywhere that RMS voltage is driven into a resistive load. The purists just hate when someone uses the term RMS power. Since the term RMS power is used by most everyone in the industry, I'll use it here also. It may not be technically correct but it's less confusing for some. http://www.bcae1.com/2ltlpwr.htm

Many people ask the question... Can my speakers handle this amplifier or will this amplifier blow my speakers. Well, the truth is that any speaker can be driven by any amplifier. The only time that there will be a problem is when the person operating the system becomes abusive. Most people (and I do mean most) drive their amplifiers well into clipping. I know what your thinking... I never drive my amp into clipping. Well, you must be one of the very few. Generally speaking, if you have friends who are impressed by high volume, you drive your system into clipping.

No one can tell you if you will blow your speakers with a given amplifier. They may be able to tell you whether or not a pair of speakers will be able to handle a given amount of continuous RMS power. But... since they don't know your listening habits or your ability to hear (or even be concerned about) distortion, they (in my opinion) cannot actually tell you if a given amplifier (with you at the volume control) will blow your speakers.


http://www.bcae1.com/speakrat.htm

bamaboy
06-09-2006, 01:54 PM
http://www.cardomain.com/item/KENKAC7252
i plan on running this amp on some pro 60s, should do around 220@3ohms, i might should use more power because i need them LOUD

Kickerkitty
06-11-2006, 06:15 AM
Any more word on this?

I have multiple questions.

I'm planning to bi-amp these speakers and use a Carver 90x2 for the tweeters.

For the mids, I have two Carver KMOS2200 amps and I can either use one to drive both mids, or one each, bridged. These amps are rated at 100Wx2 into 4 ohms, 170x2 into 2, or 340x1 bridged mono into 4 ohms.

Q1) what is the impedance on just the mid driver?

Q2) Based on what you have said here, it sounds like maybe I should run both amps and pump ~340W per side into the mids. (I don't know exactly what it would really be, since I don't know the impedance of the 6.5" drivers). Should I? Or should I stick to 100W (or whatever it is, depending on the driver impedance) per side by just running one amp to drive both mids?

Thanks!

- Stu

Ok, I am qualified to answer this question, I have run Pro60's for extended periods of time, in a sealed/damped application. Off of deck power, off of 150 watts per side, and off of over 400 watts per side.

Off the deck they sound like you're hearing them through your sweater, not vibrant, but accurate still.

Off the 150 watts, sound clear and loud, more would probably be better.

Off the 400+, too much power definately. I am guessing 300 is about the most you honestly want to give them.

Hope this helps. I have no problems with only 150 per side.

White Ram
09-29-2008, 01:06 AM
Back from the grave!!

I have been pounding these speakers for several years now.....it's time to really wake them up!!


The question that has yet to be answered is........what is the impedance of the tweeter and woofer separately?

J

Xprime4
09-30-2008, 09:06 PM
i want some !!!
got 300watt rmsx2 with an mb quart pab4100 bridged. Will the amp be able to take the 3ohm load? specs only say stable at 4ohm bridge. Anyone try with any amp or mb quart in particular?
Right now it's bridged at 300 watt rms and it get warm , but never goes under protect

Xprime4
10-03-2008, 03:37 PM
4 channel amp stable at 2ohm , bridged at 3ohm ??? somebody they need so many power, please don't tell me nobody ever bridged an amp on it?

White Ram
10-03-2008, 09:10 PM
I am getting ready to repower mine with a Kole Audio - KX2-1920. this should be plenty of power at 3 ohm's.

J