How to Make a Bora slower..

[Greg Roles]

Nice work!

So mounting tweeters level with the mids gives a more focused sound, that is the high and low "sound" like the are from the same place?

I thought the go was to mount the tweets up high as higher freq is directional, whereas the mids and especially the sub are non directional.

Why run splits then??

[glidn]

Nice work!

So mounting tweeters level with the mids gives a more focused sound, that is the high and low "sound" like the are from the same place?

I thought the go was to mount the tweets up high as higher freq is directional, whereas the mids and especially the sub are non directional.

Why run splits then??

Alrighty, here is a myth not many people seem to understand.

Only subs are non directional, anything about 150 - 200HZ is directional.

Therefore mounting your tweeter as close to the mid as possible is usually best. But not always, with technology of what it is today, you can often mount them apart and by using time alignment crossover settings and gains you can fool the system that sound like the mid and tweeter are near each other.

[ranton-inc]

with technology of what it is today, you can often mount them apart and by using time alignment crossover settings and gains you can fool the system that sound like the mid and tweeter are near each other.

Like we have done so in the R?

[Mr ©harisma]

Like we have done so in the R?

Yeah it is looking really good mate, I don't know if you have mounted your tweeters yet but I'm going to get piccies of them today for you to much around...

Good luck eliminating those rattles from the 8's!

I tried taking them off my camera but it's not wide enough so ill use a work camera with a wide angle lens to fit it in ( I work at a camera shop )!

[Mr ©harisma]

Ok so it took a Tamron 14mm f2.8 lens to get it but here they are. Both left and right side tweeter mounting and mid comparison.

[Mr ©harisma]

Ok for all those wondering about tweeter mounting, this is taken from the Fhrx site about the problems of mounting tweeters.

Okay, stop and think about a concert for a second. You don't sit with your back towards the band right? Rather, you want the sound in front of you. Likewise you want to be in the first row, be dead center of the band on stage and depending on your personal preference you might like to be slightly below the sound (as is an audience member) or slightly above the sound (as a conductor is). This is the image we try and capture inside cars today and tweeter positioning plays a large role in achieving this phenomenon. You cannot just simply slap tweeters in anywhere. To get a decent stage you need good width, height and depth - preferably mirror-tip to mirror-tip, floor to roof and as far down the bonnet as possible.

Where to mount them then? Kick panels, sails or elsewhere?
We often see tweeters mounted up high on the sail area on the door or down in the kick panels. Both these work well but can suffer from similar issues. The problem with the sail mounts is this; think about the position of your ears in relation to the tweeters. One speaker is belting the high pitch tunes out about one foot from your ear where as the other tweeter is triple, quadruple or quintuple that distance away. The image has no choice but to be right out the side window. Sheer laws of physics govern this fact.

If you place the tweeters down in the kick panels then the right speaker distance is about three feet and the left speaker is about four feet away. The problem is not utterly eradicated but it becomes a lot less noticeable as the distance separation is reduced (by up to half sometimes). However using the kick panel method the stage can be a tad low (the kicks are often used on cars with no factory tweeter location to avoid the cost of custom A-pillars or sails too). Remember tweeters cannot be placed anywhere where they fire straight into ones feet so you have to be more careful about their placement on both sides and more often than not this results in them being mounted very high up in the kick panel, quite often well out of sight and well up under the dash - this is also good for security too.

The final mounting place of your tweeters depends what you desire from your system and what your budget is. As mentioned above; when choosing a tweeter mount in order to achieve a great sound stage you're always faced with various issues. Put the tweeters up high and forward and you'll get good depth and height but the stage width can sometimes suffer. If you put them deep in the kick panels you tend to get good width and depth but the height can sometimes suffer. Seems you cannot win sometimes, especially when you factor other things on like reflection issues. Experimentation is the best strategy. Remember too that tweeter location can also play a role in ambience too. If the tweeters are positioned correctly (whether in the kick panels, A-pillars or even behind the review mirrors) they will help the whole component set fill the car with high frequency sound - not just way off in front of you.

There are two other issues to consider when choosing where your tweeters will go too. Cost is one because to mount the tweeters successfully in the A-pillars there is a good chance you're going to require some custom work done and hence the price goes up. Then there is also the security issue too because people can now see your tweeters. Factor all these issues in when you are deciding.

[MKIVF]

Another great place to mount the tweeters are on the a pillar. I find with the tweeters in the panel, the stage height is too low. A way to circumvent this is by putting a second pair in the a pillar, but I prefer not stuffing around.

Good choice of equipment. Was this reccomended to you by Marty? As soon as I saw FHRX I felt a boston/audison onslaught coming on.

[Mr ©harisma]

Well yeah, basically the Boston splits where the best suited for the budget.