Does the Peerless XLS 12 NEED a passive radiator? - diyAudio
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Old 14th September 2005, 06:35 AM   #1
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Default Does the Peerless XLS 12 NEED a passive radiator?

I'm trying to find a 12" driver that will have high output in an enclosure smaller than 2 cubic feet. Does the Peerless only work in that 1.4 cf box with a radiator?
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Old 14th September 2005, 07:24 PM   #2
simon5 is offline simon5  Canada
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No it doesn't need a passive radiator at all.

Check the new XXLS line also.
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Old 14th September 2005, 10:30 PM   #3
Vikash is offline Vikash  United Kingdom
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The trouble with XLS range is that the port lengths required are too long for small boxes, hence the PR. I've only worked with the 10" but I assume the same applies: you will either need a PR, or you could use EQ to extend response without a PR since XMAX is plentiful on the XLS
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Old 15th September 2005, 12:33 AM   #4
mike.e is offline mike.e  New Zealand
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High power input
Low tune
Tiny enclosure
= amazingly long port.

The tiny box requirement arrives from the very low Qes in particular. Its probably nearly impossible to get a decent port that guarantees no chuffing.

I would consider PR or another woofer eg XXLS
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Old 15th September 2005, 03:24 AM   #5
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I've never even seen the XXLS line. Where can I get them and what is the 12" version capable of enclosure wise?
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Old 15th September 2005, 03:37 AM   #6
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Ok, I found the XXLS line. It says the DVC version of the 12" has an F3 of 43hz in a 1.75 cf box. I am using the BASH 300 w amp from PE. ( http://www.partsexpress.com/pe/showd...number=300-750) What can I do to EQ a lower F3 out of that driver in that box? I've never gotten much into that.
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Old 15th September 2005, 04:23 AM   #7
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Why not just make the port external to the box .... seems to work just fine.
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Old 16th September 2005, 02:58 AM   #8
mike.e is offline mike.e  New Zealand
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Quote:
Why not just make the port external to the box .... seems to work just fine.
1. Because its a waste of space where the port volume approaches the box volume.Ok for some perhaps.

2. Because its long enough to have a pipe resonance in the upper bass.
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Old 16th September 2005, 02:36 PM   #9
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Should i be looking to any other driver instead to get the smallest enclosure possible with good output?
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Old 16th September 2005, 05:42 PM   #10
95Honda is offline 95Honda  Germany
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Quote:
Originally posted by AudioFreak
Why not just make the port external to the box .... seems to work just fine.

Nothing wrong with that at all. Passives are a waste of $ in my opinion. If your going to do it, go big enough to have a decent size vent. Passives do not get you anything that you can get with a well designed ported box, except for the small box with low tune of coarse....
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