Driver suggestion.

[Big Kev !]

Hey guys,

Its been a long time coming but I'm finally getting around to putting a sub in my room. I've had a look all around the internet and keep getting mixed opinions and unfortunatly I can't hear these subs before purchasing. My primary use is music but I also watch movies every so often something loud and smooth would be nice preferably +100dB @ 20Hz.

To run the sub I'm going to use a Behringer A500 which is 500W @ 8 Ohms and a Jaycar sub processor.

One of the biggest problems I'm facing is driver avalibility, shipping from parts express is more than the driver over here. I've had a serious look at the Peerless range, specifically the 830500 and thought about going that with a PR although I've had conflicting opinions on the Peerless range with some calling them overatted and other praising them. I've also had a look into some of the higher end "car audio" drivers in particular the Phoenix Gold Xenon series subs caught my eye as in a moderatly sized sealed box they had a very low smooth output (-3dB @ 29Hz in WinISD) and can be had in Aus for a bit more than the Peerless driver mentioned. I've emailed the distributor for Adire over here but I don't think they've had any stock of Adire products for some time.

Any suggestions or experiences would be greatly appreciated - I can't wait to get in the shed and start building

Cheers

[beppe61]

Dear Sir,

please excuse me if I ask you a question off-topic.
First of all I cannot give you any useful advice.
By the way I see that you use a Behringer A500.
I am very interested in this amp for a stereo system.
I understand that you use it bridged.
Have you had the opportunity to try it as a stereo power amp?
Whit which speakers ?
What do you think of its sound ?

Sorry again and kind regards,

beppe
Italy

[Big Kev !]

No problems, although I'm still waiting for the amp to come in, hopefully I'll be able to pick it up before the end of the week. I have a few speakers and I play to try it out as a stereo amp as well and see how it goes, I will post up my findings on here when I do

Still searching for a suitable driver, so any opinions or suggestions (there must be some ) would be great. I'll have the chance to try out the Xenon sub soon so that will be interesting, I would really love to try out the Peerless subs but I don't know anyone with any. A question on the side, is it true in saying that adding a PR will give you a greater increase in SPL than just a vented box?

Cheers

Kev

[beppe61]

Originally posted by Big Kev !
No problems, ... I will post up my findings on here when I do
...
Cheers
Kev

Thank you so much Mr. Kev.
I wait for your opinions.
I am interested about the bass response over all.
I like amps that have a good solid bass.

Kind regards,

beppe

[johngalt47]

Can you tell me which brands are readily available there?

[xstephanx]

vented and pr give the same SPL, there is no diference.

if you told us what was available over there we could help more.

peerless drivers however, from what measurements ive seen over the years, are very low distortion drivers, although they are by no means a "super woofer" anymore, and their excursion is somewhat average, maybe even a bit below(12.5mm one way linear i believe), they are very good sounding drivers and still get use in many highly regarded designs(mr linkwitz there is a big fan of em).

try doing some simulations for an XLS or XXLS in vented or pr systems, remember that you will gain 3db from predicted spl in the program(i reccomend winISD) by putting it on the flor, another 3db with floor and a wall, and ANOTHER 3db if you shove it in a corner. And plan with a bit of headroom too! watch those excursion graphs!

you also never told us how large your room was!

bottom line is i would be VERY suprised if a properly powered 12" XLS in a properly designed PR design couldnt crack 100db at 20hz in room. worst comes to worst you coudl always build a pair!

[Big Kev !]

Originally posted by johngalt47
Can you tell me which brands are readily available there?

Over here I can get the Response drivers, Peerless drivers, just about all the highend "car audio" drivers although while some of them model quite similar to some renouned home drivers they often cost a fair bit more. I've contacted the supplier for Adire because for the past year there hasnt been any stock of them and he currently has the Shiva 10" and 15", Tempest 10" 12" and 15" and Tumult 12" and 15". I am now going to contact him with regards to pricing. And that pretty much sums it up Any other drivers people use down here are generally shipped in.

Originally posted by xstephanx
vented and pr give the same SPL, there is no diference.

if you told us what was available over there we could help more.

peerless drivers however, from what measurements ive seen over the years, are very low distortion drivers, although they are by no means a "super woofer" anymore, and their excursion is somewhat average, maybe even a bit below(12.5mm one way linear i believe), they are very good sounding drivers and still get use in many highly regarded designs(mr linkwitz there is a big fan of em).

try doing some simulations for an XLS or XXLS in vented or pr systems, remember that you will gain 3db from predicted spl in the program(i reccomend winISD) by putting it on the flor, another 3db with floor and a wall, and ANOTHER 3db if you shove it in a corner. And plan with a bit of headroom too! watch those excursion graphs!

you also never told us how large your room was!

bottom line is i would be VERY suprised if a properly powered 12" XLS in a properly designed PR design couldnt crack 100db at 20hz in room. worst comes to worst you coudl always build a pair!

My room is about 4x4meters. 100dB was just a ballpark I basically want a nice sounding sub that can go loud but my main obstical is I dont have the resources to try out a lot of combinations. The 830500 + PR seems to be pretty good but everyone seems to have different sized weights for their PR's and I don't really know how to setup a PR properly.

Thanks a lot for your replies

Kev

[xstephanx]

how much weight to add to the pr, tunes it, and is the same thing as adding length to a vent. download winisd and play around with the XLS. i hate to do it, but i have to reccomend against adire, ive heard nothing but complaints for the past year about their warranty service.

BUT there is an elemental designs 15" woofer, that has VERY similar parameters to the older tempest(back when it came as JUST a 15) so see if you guys get eD.

[Big Kev !]

I've played around with the 830500 but the only problem is it behaves very differently to most other drivers I've played around with. Even with Peerless recommended tunings it seems to have a pretty steep roll off.

I understand how you say adding weight tunes it like adding length to a port but how do you know what weight to start with and how to increase it (what increments). I only have WinISD so I can't model excursion which I believe is an issue with PR designs. I will have a 20Hz rumble filter.

Thanks again.

[xstephanx]

jsut get winisd pro, its also free and a much better program.