| Stantob |
I am planning to build a sub with the classic Peerless XLS and a passive radiator. PR is new to me and I have searched the net to learn. But one thing remains unsolved to me. I have seen solutions where the passive element is facing all directions.
Doesn't this have any influence on the construction? Phase problems? I want to place the PR on the same side as the main element, pointing downwards.
Does the distance between the elements have any importance?
Thanks! |
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| simon5 |
A passive radiator is usually VERY heavy so pointing downwards is usually a very BAD idea.
If you crossover low, the PR can be anywhere, even behind. |
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| Stantob |
| Didn’t think of that! Is it the same problem with XLS drive element pointing down? A solution could be using a vented system. A long vent should not be a problem in my design. |
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| simon5 |
You can have the XLS pointing down if you have less than 5% of sag.
It's mostly a problem with PRs, but some drivers can't achieve less than 5% of sag too.
You can't use a frontfiring PR? |
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| Stantob |
| It is more of an aesthetical problem. I want the speaker to be "invisible". Two 12" elements poining at your fase is not. |
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| simon5 |
| But the woofer under and the PR behind, as long as you doesn't put the subwoofer too close to a wall it will be ok. |
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