Which ones.... - Realm of Excursion



Components, Coaxials & Horns Discussion related to the midwoofers, tweeters and horns.

View Poll Results: Which BRAVOX component's?
5x7 for all the reasons you mentioned 1 50.00%
5.25 because circles..... 1 50.00%
Voters: 2. You may not vote on this poll

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Old 02-28-2013   #1 (permalink)
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Default Which ones....

OK i'm about to purchase some Bravox Components, I was going to go for the CF series, but im going for the Kevlar series because they are 10$ cheaper and otherwise identical to the carbon fiber ones (CF gets a santoprene surround instead of butyl, and a little different crossover design).

Im tossed up between the 5x7 and the 5.25 sets. I have a ford, so the 5x7's will drop right in. Normally I would go round over oval, but Kevlar cones are pretty stiff, so I can imagine they wont flex too bad. Im leaning towards the 5x7's due to the increase in surface area, and the phase plug (A phase plug wont have any effect on mid bass frequencies I know, but it will help with voice coil cooling)
Because of the bonus surface area the 5x7 are a tad louder, but because of the oval shape, they wont play quite as low (60hz vs 50hz for the 5.25's) but that's not really a concern, as they wont be going that low anyways....
Also the crossover that comes with the 5x7's is the one that comes witht he more expensive CF series.

Here they are, there is no price difference.....
5x7
Bravox CS57K Kevlar Series 5" x 7" Component Speaker System 269-507
5.25
Bravox CS50K Kevlar Series 5-1/4" Component Speaker System 269-506
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Old 02-28-2013   #2 (permalink)
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Default Re: Which ones....

i actually like my 5 1/4s they have a clean sound to them to me imo. and they are carbon fiber as well. I also agree with you as i like the circle but sometimes we need oval like my rear 6x9s.
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Old 02-28-2013   #3 (permalink)
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Default Re: Which ones....

Quote:
Originally Posted by WreckedX View Post
OK i'm about to purchase some Bravox Components, I was going to go for the CF series, but im going for the Kevlar series because they are 10$ cheaper and otherwise identical to the carbon fiber ones (CF gets a santoprene surround instead of butyl, and a little different crossover design).

Im tossed up between the 5x7 and the 5.25 sets. I have a ford, so the 5x7's will drop right in. Normally I would go round over oval, but Kevlar cones are pretty stiff, so I can imagine they wont flex too bad. Im leaning towards the 5x7's due to the increase in surface area, and the phase plug (A phase plug wont have any effect on mid bass frequencies I know, but it will help with voice coil cooling)
Because of the bonus surface area the 5x7 are a tad louder, but because of the oval shape, they wont play quite as low (60hz vs 50hz for the 5.25's) but that's not really a concern, as they wont be going that low anyways....
Also the crossover that comes with the 5x7's is the one that comes witht he more expensive CF series.

Here they are, there is no price difference.....
5x7
Bravox CS57K Kevlar Series 5" x 7" Component Speaker System 269-507
5.25
Bravox CS50K Kevlar Series 5-1/4" Component Speaker System 269-506
A phase plug has very little to do with cooling the coil. It does however have to do with phase.




In a loudspeaker, a phase plug, phasing plug or acoustical transformer is a mechanical interface between a speaker driver and the audience. The phase plug extends high frequency response because it guides waves outward toward the listener rather than allowing them to interact destructively near the driver.[1]

Phase plugs are commonly found in high-powered horn loudspeakers used in professional audio, in the mid- and high-frequency bandpasses, positioned between the compression driver diaphragm and the acoustic horn. They may also be present in front of woofer cones in some loudspeaker designs. In each case they serve to equalize sound wave path lengths from the driver to the listener, to prevent cancellations and frequency response problems. The phase plug can be considered a further narrowing of the horn throat, becoming an extension of the horn to the surface of the diaphragm
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Old 02-28-2013   #4 (permalink)
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Default Re: Which ones....

Agreed entirely, but at the frequencies they would be playing at, a phase plug is more or less decorative. In my weird brain, due to it not being locked away behind the dust cap, the voice coil would get a bit more airflow.
Also it would technically reduce cavity resonance that would normally occur behind a dust cap would it not?(though the audible effect would be negligable)
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Old 02-28-2013   #5 (permalink)
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Default Re: Which ones....

I guarantee I couldn't hear a difference but I'm sure someone has measured it.
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Old 03-01-2013   #6 (permalink)
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Default Re: Which ones....

Ok ordered my components, I went with the 5x7 went all out for the carbon fiber! Cant wait to get them!
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