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Best bang-for-the-buck Passive Radiators?
Best bang-for-the-buck Passive Radiators?
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Old 7th January 2007, 05:47 PM   #1
geolemon is offline geolemon  United States
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Default Best bang-for-the-buck Passive Radiators?

I know of about four online sources for purchasing passive radiators, and I haven't found any that had me jumping to buy... either the price was right but the capabilities weren't, or the capabilities were potentially there, but they were $200.

I'm looking to buy two 12" or 15" passive radiators, to do some experimentation with - a proof of concept for a strange design, to extend some experimentation I've done with vented verisons...

What I believe I need are some pretty high-mass (or capable of being) PR's with potentially high excursion capabilities.
Of course, these are more for proof-of-concept and experimentation than anything, so spending $400 on a pair is just not practical either. (WAF factor is an issue, from a budget standpoint )

I couldn't find anything much here, searching for "where to buy" "passive radiator" "passive radiators" "buy a passive radiator" etc. on here, so possibly the whole "where to buy" question isn't raised much on DIY Audio?

I'm sure there are a ton of people on DIY Audio who have great suggestions, thank you in advance for sharing any that you have!
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Old 8th January 2007, 09:53 PM   #2
cowanaudio is offline cowanaudio  Australia
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G'day geolemon

Since you would be happy with a 12" passive, you should have a close look at the Peerless XLS passive radiator. These are very well built and have good excursion for a 12". There is an M5 threaded hole that can be used to hold mudguard washers for added mass.

Stay away from the passives at http://www.aespeakers.com/ I ordered (and paid for) a pair that I was told were in stock on 07 September, 2005 and have seen nothing since. There were plenty of emailed promises, but they weren't worth the paper they were written on. John Janowitz has the worst customer support in DIY audio, don't blow your money like I did.


William Cowan
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Old 9th January 2007, 12:10 AM   #3
BassAwdyO is offline BassAwdyO  United States
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I got a pair of 18" passives off of www.Acoustic-visions.com for my tumult and they were somewhat reasonable at $125 apeice IIRC(~3" p-p excursion on an 18", the only thing I didnt like is the mounting holes in the frame are huge).... They sell some smaller ones for less at that website. Parts-express.com surely has a few passives as well and MCMinone.com probably does also(although MCM isnt the easiest site to navigate...
The golden rule of DIY:
Build nice, or build twice!
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Old 9th January 2007, 03:14 AM   #4
geolemon is offline geolemon  United States
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Thanks for the replies so far...

The Peerless ones are almost like "the" PR's it seems, for a ton of DIY projects I've found. I believe they are pricey though. I forgot the price, I think I saw them up at Madisound.

The two models that they have at Parts Express seem pretty unimpressive, they were one of the first places I looked. The cheap one has particularly wimpy specs.

I'm going to check out Acoustic Visions... if the 18" can keep up with a Tumult, THOSE excursion specs seem impressive.

BTW, I also have a second project that I've been thinking of... for a very thin enclosure, only 6.5" deep. Anyone ever seen 6x9 size PR's? I'm not really terribly concerned about this one though... mainly looking for 12" PR's.

Thanks again, hopefully others have ideas too?
Someone linked me to some site a while back, nice, high excursion, cast basket 12" PR that was like $50... manufacturer also built a pretty impressive looking sub for just $99.... and god help me if I can remember who that was...
I never got to look at their specs.
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Old 9th January 2007, 03:35 AM   #5
geolemon is offline geolemon  United States
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Ah! I found the link.
What do you think of this one:
Seems to be a bargain for what you get, and an easy bolt-style system for adjusting mass (good for my experimenting).

If there are any other suggestions, I'd love to hear them!
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Old 9th January 2007, 03:40 AM   #6
LightwaveDude is offline LightwaveDude  United States
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Madisound is the only place I've ever seen smaller passive radiators for sale. I just did a quick search (so some drivers are also included on the page: link), but they have passives ranging from 3.5" to 12" so you might be able to use a 6.5" passive or two for the other small project you're looking at.

Sorry, can't help you with the big passives though.
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Old 9th January 2007, 05:04 AM   #7
hongrn is offline hongrn  United States
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Here's another PR source:


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Old 9th January 2007, 11:24 PM   #8
micb is offline micb  United Kingdom
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Are you the same geolemon that was on CAF a good few moons ago. If so Hi good to see you again!
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Old 10th January 2007, 04:09 AM   #9
geolemon is offline geolemon  United States
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Thanks, and yes, I'm still on CAF all the time.

I do a lot of mobile audio - that's typically where I've got the most time to spend listening to music, and absolutely the only place where I'm sitting still.

Hence, why this whole "dual chamber hybrid vented/PR" concept came to be.
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Old 13th January 2007, 04:03 AM   #10
thylantyr is offline thylantyr  United States
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Anyone ever seen 6x9 size PR's?

A regular 6x9 speaker, unpowered. lol

Add mass as needed. lol
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