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#1 |
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diyAudio Member
Join Date: Apr 2003
Location: Toronto
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Hi
I've been looking for sub drivers locally and for cheap, to experiment (and possibly like the final result) with building a dipole sub. This one is currently on sale, but i am not sure if it is good for dipole application. Its Qts : 0.64 and XMax is 28mm. The fullest specs i could find of the driver are here: http://bizrate.lycos.com/marketplace...--7391392.html I plan to build an H-baffle dipole, but to situate drivers horizontally (not vertically like in Orions) - is it ok, or its gotta be vertical? Thanks Alex |
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#2 |
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diyAudio Member
Join Date: Aug 2003
Location: Australia
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I don't know where they got that QTS but I'm certain it's not right for that model,I don't have that model in my database at home (I do at work though) but I recall it being around .3, you can however use the "F" series in dipole, since they're designed for IB use and have a suitable QTS for dipole use.
example Horozontal configuration will be fine. |
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#3 |
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diyAudio Member
Join Date: Feb 2003
Location: Somerset, SW England
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Where do you find the T/S parameters for the Pioneers? I can't see them on that link.
__________________
The truth need not be veiled, for it veils itself from the eyes of the ignorant. |
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#4 | |
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diyAudio Member
Join Date: Aug 2003
Location: Australia
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Quote:
The F series aren't supplied with T/S parameters that I recall, you have to test them, I can't recall their exact QTS but it's high, over 0.5 |
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#5 | |
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diyAudio Member
Join Date: Apr 2003
Location: Toronto
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Quote:
http://bizrate.lycos.com/marketplace...--7391392.html and in that table, around half way of the table, under features: the only entry is Qts: 0.64 It is strange however that Pioneer own website does not have that parameter. It seems to be the bottom line of their Premium car subs. Thanks Alex |
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#6 |
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diyAudio Member
Join Date: Apr 2003
Location: Toronto
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Well, I decided to bite the bullet and get them (on special for $63 CAN (1US = 1.3CAN))
Comparing to my Peerless CSX series in my main speakers these look quite dinky and the downside is that Fs of these appears to be ~29Hz (is it really all that bad? , can i still get under 29Hz with EQ?) Also It says on the box that they are for in-box use (i guess as opposed to in free air) - so thats another thing i am worried about. Overexcursion - is there a cure? Qts is 0.65 so i guess its fine. The cone got a thick plastic centre circle and thats what makes the sub look dinky to me. The surrounding is foam and pretty wide, comparing to other subs i saw there. I have a month to evaluate them and return if i dont like them. To protect myself from them blowing, while working in the free air, I got the extra 3year warranty (for like $25US extra for both), so I'm covered there. I'm afraid to be dissapointed with those in the final H-baffled dipole, but i guess there is only one way to find out <Your comments here> Thanks Alex |
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#7 |
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diyAudio Member
Join Date: Feb 2003
Location: Somerset, SW England
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Well apart gfrom the fact that Volenti questioned that Qts parameter, they should be worth a try in the baffles.
Looks like you are the man for the job!
__________________
The truth need not be veiled, for it veils itself from the eyes of the ignorant. |
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