6 replies to this topic

[acarr87]

Hey guys,

First of all, i've bought myself a set of Focal K3P 3 way splits. I will be looking to put the midbasses in the kick panels, then building something very similar to the attached image for the woofer

The main question is whether I will be better off putting the tweeters high in the door or up in the pillars for better sound staging?

I have a pair of Alpine PDX 2.150 that i will be using to power the speakers.

Any opinions about the tweeter location would be great!

Cheers

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Edited by acarr87, 11 April 2012 - 08:49 PM.

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[muzzy66]

Hmm, much to consider here.

1. Minimising Path Length Difference (PLD) - You want your tweeters to be the same distance from the listener as the midrange, and if this is not possible you want it to be as close as possible. This is not as important for the midbass, but I would still try to get as close as possible for best results. Fancy processors with time alignment are great, but that should be used only as a last resort - there is no substitute for true physical time alignment.

2. Position - You want the tweeters as close as possible to eye height, and as deep in the corner as possible. From my experience this helps a lot with staging.

3. Angle - You want the angle of the tweeter to be as close as possible to optimal for that specific tweeter. If the tweeter has a significant naturall on-axis rolloff, you want to mount it as much on axis as possible. If it has a slightly rising natural response, then you might benefit from putting it on a slght angle to help neutralise that. In the case of the Focal tweeter, I'd say about 30 degrees off axis is optimal.

Personally, my first priorities are usually points #1 and #3. I find that timing and overall linearity are absolutely critical to having a nice even integraton with the rest of your system. Issue #2 is almost important, but IMO not as much so as the others. Just my personal opinion there

[SQXPRT]

If you can get the mids and tweeters into the a pillars or door sails, that would be best for height and width of sound stage.
The woofers are less important to get high up, but getting them both approximately the same distance away from the listener is a good start.

[acarr87]

Thanks for the insights guys, unfortunately getting the mids up high won't be possible, as they are a 6.5" mid.. Thinking I will go with the tweeters In the pillars by what's been said above, and just be sure of the angles and things when I do it.. Any further insights will still be appreciated

Edited by acarr87, 15 April 2012 - 12:52 PM.

[SQXPRT]

ahh, my mistake - I was thinking of the KRX3, which has a 3" midrange

[acarr87]

Figured as much thanks for the input anyways!!!

[Damo95]

Tweeters up high would help..

Have a look at the doors of "jimception", a BMW built by Phatt which has "dual" 6.5" midbass, 3" midrange & tweeter..
The main part to look at aid the doors as that's how similar to how you could run yours..

Or mount the midbass in the rear doors, midrange in front doors, and tweeters up on the pillars.. From my, that's one of the recommendations in the manual..


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