I have a set of boston acoustic pro 60 comps.Overall the speakers sound great but at high volume they become very harsh.If you listen to them for about 20 minutes they make your ears hurt or tired is how i describe it.I have the tweeters installed in the sails of the windows.The midbass is installed in the door. This may be my problem.I called boston acoustic and they told me i should not detached the tweeter from the midbass.They said if i leave them in the coaxial setup in the doors they will image great.They said they are engineered this way to perform best in a coaxial install.The speakers are very clear and detailed at any volume but they they tend to be harsh at high volume on certain types of music such as rock or heavy metal.I have them attenuated at -2db.They can be set to 0db -2db or -4db.I have my gains set with an oscope with a 3 to 1 overlap.Do anyone have these speakers and what is your setup?Any suggestions?Should i put the tweeters in the door with the mids?Also does anyone use the boston acoustic imaging system? http://www.bostonacoustics.com/car/car_pro...;product_id=324

How well does it work?Thanks for your suggestions.

Mounting them higher and therefore more on axis with your ears will make them louder with respect to the mids.

Certainly the location of them will affect the sound you get.
What amplification are you using?
This can also have an influence too.

You say that that it gets harsher at louder levels. This can be said about most speakers.
Often not the fault of the speaker to be honest.

They are being run by 200rms x2.The pro 60 are power hungry so this is nothing.When i say loud i mean when you turn the volume up a little pass normal listening full robost sound not clipping.The mids of these speakers hit like a thunderbolt the tweeters are very loud at high volume.I am not using eq's bass boost etc. everything is flat?They are crossed over at 80 hpf

the space bar is your friend mate,its very hard to read when you dont pucntuate properly!try putting the tweeters down low...most metal domes can get fatigueing, try an active set up with some mellow soft domes...

I've got pretty much the same tweeter's as what you have in your Pro's, and I've found them to be harsh if mounted up high.. I don't think it's all of the tweeters fault though, it's just because it tends to play lower than other metal tweets can, and the frequencies tend to resonate of glass a lot more than comparative tweets, even compared to other metal domes (I blame it on the crossover settings personally).



I've had mine out of the co-axial mounts on the dash, in the sails, and in kicks, but the best results for imaging and tweeter attenuation I've had to date has been in this position (see below).







In this setup I've found it relitively easy to EQ, as there are almost no internal reflections to have to deal with, as opposed to dash mounting the tweets, and using attenuation. BTW, I still have the crossover settings attenuating the tweets by -4dB, which makes them about right for my overall EQ settings to need minimal changes.



If you want to enhance the staging (or are worried about losing your staging with a door mounted setup), I highly suggest a slight on-axis mount (see below).









Regarding the Boston pros, I think that the intention during their development was to make a set of speakers that would perform exceptionally well in stock mounted positions. To have them mounted in a different style may mean that you will have to start a lot of mucking around with EQ's, and possibly TA settings to get a better result.

Update the tweeters do not sound harsh to me anymore.When i first installed the pros they sounded so good that i listen to them for 3 hours a day for a week.I did not realize that my ears were starting to fatigue.So when i played system everything sounded harsh.When someone entered my car they thought i had the best set of comps they had ever heard and they could not hear the harshness.I went three days without playing the system,and They no longer sound harsh and my ears are not fatigued anymore.These speakers are really clear at any volume and everything is detailed.I would rate them 10 out of 10.

when i saw this topic i was shocked, good to hear another happy boston fan at the end of it tho

http://www.mobileelectronics.com.au/forums...showtopic=69358

I installed a set of Z6's just recently, and was horrified by how bad the tweeters where when X/over under 5khz, unfortunatly the midrange doesn't work much above 2khz, so I had to work with a 2.5khz 24db x/over point and do ALOT of EQ to fix the issues.



I'm waiting for the person to break the speakers in more, before i do final tuning and x/over selection to sort out these issues..

but they where alot worse than the known problematic focal tweeters, I'm just hoping with some breakin time they will settle down.



as with any speaker, especially high end ones, good EQ is usually required to fix any anomolys in the system, but you can always mount the tweeters somewhere, where the high freqs will be muffled to fix the problem if sufficent EQ or knowledge isn't available to you.



Juls