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View Poll Results: I've heard of Wavecor
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Old 3rd April 2012, 07:49 PM   #1
fakeout is offline fakeout  Canada
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Default Wavecor FR070WA01

Does anybody have an opinion on which one you'd choose if you wanted one of these? The 4 Ohm
http://www.solen.ca/pub/cms_nf_catalogue_fiche.php?id=2532&recherche=&numR ows=&manufacturiers=51&niveau1=1&niveau2=1&niveau3 =

or the 8 Ohm
http://www.solen.ca/pub/cms_nf_catalogue_fiche.php?id=2533&recherche=&numR ows=&manufacturiers=51&niveau1=1&niveau2=1&niveau3 =

They have different sensitivity. I don't know why. Now, if we could only get this company to change their names to something you can talk about like AE-1, AE-2 etc.

If you read, they also suggest you can use them with SW070WA sub wooders but those are 2 3/4". Would this be a nice FAST setup for a computer desktop?

What is the advantage of a FAST setup over a regular 2-way speaker?
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Old 3rd April 2012, 08:12 PM   #2
zman01 is offline zman01  Bangladesh
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With FullrangeAssiSTed or FAST you can expect to cross lower vs a traditional 2 way system. A quality FR is likely to have more "midrange magic" vs a midbass, and in a FAST system the FR will be doing the HF and most of mid-range duty; the helper woofer of FAST will just fill up the bottom ocatves and add weight/punch. In a regular 2 way the mid-bass unit is expected to do substantial amount of midrange duty too, and XO at higher frequency makes it more likely to notice the difference of drivers.

However there are good regular 2 ways out there, but most likely to cost more because of investment in a quality tweeter, a quality midbass and XO components.

FAST can be cheaper by incorporating a relatively inexpensive helper woofer with a FR.
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Old 3rd April 2012, 09:14 PM   #3
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They have different sensitivity because one is 4ohm and one is 8ohm.

Personally, I wouldn't bother with a FAST for a desktop. I'd go with a quality 3 or 4" full ranger. I'm a multi-way guy, and coming from a multi-way background, the ONLY way to do desktop, is full range (with some computer assistance if required).

Take a look at this figure: http://zaphaudio.com/ZD5-modeled-pol...ed-200step.gif

Look at the left polar. See those nulls just above and below the listening axis. Well, out in your living room your ears are free to move up and down within that lobe fairly freely. At your desk though, it's almost impossible to not slip into one of those nulls. And that'll kill imaging, tone, detail, etc. Also, the primary reflection is off your desk, which is going to include a giant hole in the ~2khz range.

A full range has a perfectly smooth power response. Because there is no cross over. And because you're nearfield, most any decent 3 or 4" full range can provide the required SPL and bass extention.

I've been pretty passionate about this lately, so if you have any questions about it let me know and I'll try and help.

BTW, that example I linked is Zaph's (a highly regarded 2-way designer) best (his words not mine) design available on his website.
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Old 3rd April 2012, 09:39 PM   #4
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The advantage of a FAST over a typical 2-way is that the XO is moved to below the critical hearing range.

1/ the driver-to-driver spacing can easily be less than half or even a quarter wavelength. If you can get to the latter the drivers are essentially co-incident.
2/ the ear is less sensitive to XOs when placed as low as they ar ein a FAST as opposed to smack in the most sensitive range as in a typical 2-way.
3/ the XO is passive, it benefits from being at a place where both drivers are near the valley of the impedance curve
4/ with careful driver selection you have a large bandwidth overlap that allows use of lower order XOs (including simple 1st order series XOs)
5/ XO point can be placed such that a more efficient woofer can deal with baffle step eliminating filters & EQ.

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Old 3rd April 2012, 09:49 PM   #5
fakeout is offline fakeout  Canada
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OK, thanks both of you but I think it's Fullrange Assisted with Sub Technology.

That's helpful and interesting to know. But, assuming I wanted a Wavecor full ranger as a desktop and one with a sub for let's say a living room to listen to movies... wait, how can I put this. I saw a video on Youtube that said that a 2-way was inferior to a 3-way because the woofer on the 2-way has to do midrange as well and when it's moving a lot, it doesn't do all frequencies very well. So, what I'm really asking is, if you wanted a FAST configuration, will the sub take more of the large movements and let the full ranger do its job better than a regular 2-way?

Has anyone tried the Wavecor FR070WA01 as full rangers only? There were some positive comments somewhere but I'm not sure if they're dedicated for car audio or not.

Would you prefer 8 Ohm or 4 Ohm?

EDIT: This was typed before Planet10 posted his message.
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Old 3rd April 2012, 10:12 PM   #6
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I don"t have experience with Wavecor, but I read only very positive comments about them. The German speaker diy magazines Klang & Ton and Hobby Hifi published a few attractive multiway designs with them that seemed to be really high quality, with excellent "waterfall" plots.
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Old 3rd April 2012, 10:35 PM   #7
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What you're asking depends on a lot of things. If you want to cross over to a larger subwoofer for HT duty (circa 100hz), then forget the wavecore. If going FAST and plan to cross around 300hz, the wavecore looks like a good choice. But then you should still expect to use a subwoofer to handle the 20hz stuff typical of modern movies.

Currently I use a single 8" subwoofer under my couch (seriously compromised due to space restrictions, soon to change hopefully). A typically movie like Inception absolutely pounds it, even on mild LFE parts. I constantly bottom it out. Constantly. It's laughable really. It'll be no different for a FAST that uses a couple 6.5" woofers or something.

At the desk, it'll be fine. Out in your living room I'd consider EL70s (cost less than wavecore and are Canadian) with a proper subwoofer.
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Old 3rd April 2012, 11:12 PM   #8
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Following up on tuxedovic, I would recommend fakeout not to spend money on another pair of full rangers, but rather investigate a woofer that would work well with one of the 2 pairs of full range drivers he already has, waiting patiently in their shipping carton for a suitable project.
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Old 3rd April 2012, 11:33 PM   #9
fakeout is offline fakeout  Canada
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Well, I was kind of wanting to do forward-looking research into what I could do later. The $7 Visaton were the ones I wanted to use for testing. Because I thought once I install something for the first time, it might blow something up.

The Veravox 3X is still kind of a toss-up. I read comments comparing it to the Fostex FF85K. I also read it needs a notch filter. At this point I don't even know what that is. I'm waiting for more money to come in this month to buy Speaker Building 201 and other parts to be able to connect the drivers I have.

I had luck though in that both drivers I bought are shielded. I intend to put them in a bunch of different plastic bottles and/or containers and cardboard mockups of plans before I decide which direction I want to go.

Interesting though that you don't read much about Triangle or Athom drivers from France.
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Old 4th April 2012, 12:04 AM   #10
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Quote:
Originally Posted by planet10 View Post
The advantage of a FAST over a typical 2-way is that the XO is moved to below the critical hearing range.
Hello Dave,
All your points regarding a low crossover point (guess below 300 Hz) are very informative. How would you compare this situation to using a crossover point ABOVE the critical hearing range (guess above 4-5 khz). All your points favoring a low crossover point would be mostly against using a higher than 4Khz XO. Although for this thread regarding desktop speakers, a low XO is the only feasible solution, I am intrigued by the offerings from Zu , Tekton and Decware Mini, that use a high XO point employing a "helper" tweeter with an extended range woofer.

As the aim of both camps if to keep the critical hearing range (400- 4KhZ) free of crossovers, is there any benefit of this super high XO approach compared to the super low XO approach ?

Thanks.
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