Anybody know anything about Vifa's new "MA" woofers?

Jim85IROC · 6th April 2004, 07:48 PM

I just got a peak at the April edition of Voice Coil, and Vance Dickason tested the Vifa MA26WR09. It's a 10" woofer with an aluminum cone and carbon fiber dust cap.

The 19hz resonant frequency caught my eye, so I tossed Dickason's measured t/s specs into WinISD.

It spit out a 1.5 cubic foot sealed box with an F3 of 33hz, and a ported 3.2 ft^3 box with a -3dB of 18hz.

This woofer appears to be able to go very deep in a relatively small sealed enclosure, and with almost 12mm of x-max, should be able to go very loud too.

Considering that Vifa stuff tends not to be extremely expensive, this may wind up being a heck of a driver.

coolkhoa · 6th April 2004, 08:39 PM

Cool.

Could you post the specs? I wonder if it can be the bass in a P13/D27 system.

Jim85IROC · 6th April 2004, 08:49 PM

Dickason lists 4 sets of specs, 2 samples, each tested with TSL model and LTD model.

spec.........tsl sample 1........tsl sample 2.........ltd sample 1........ltd sample 2
fs........21.6..............21.0..............19.0 ...............19.2
re........3.42..............3.44..............3.42 ...............3.44
sd........0.0333 for all
qms.....3.67.............3.53...............3.35.. ............3.65
qes.....0.51.............0.52................0.47. .............0.49
qts......0.45............0.46.................0.40 ..............0.43
vas.....73.5ltr.........60.6.................82.5. .............88.4
sens...83.5dB.........83.3................82.7.... ..........82.8
x-max..11.6mm for all

If you plan to use this in a 3 way, due to the stellar sensitivity of this driver, you'd probably want to plan on using a separate high power sub amp on it.

This sub's low sensitivity may also negate some of its small box advantage, sense active equalization on a more sensitive sub may yield similar results. But, it still models very nicely.

6th April 2004, 07:48 PM	#1
Jim85IROC diyAudio Member Join Date: Dec 2003 Location: Stamford VT	Anybody know anything about Vifa's new "MA" woofers? I just got a peak at the April edition of Voice Coil, and Vance Dickason tested the Vifa MA26WR09. It's a 10" woofer with an aluminum cone and carbon fiber dust cap. The 19hz resonant frequency caught my eye, so I tossed Dickason's measured t/s specs into WinISD. It spit out a 1.5 cubic foot sealed box with an F3 of 33hz, and a ported 3.2 ft^3 box with a -3dB of 18hz. This woofer appears to be able to go very deep in a relatively small sealed enclosure, and with almost 12mm of x-max, should be able to go very loud too. Considering that Vifa stuff tends not to be extremely expensive, this may wind up being a heck of a driver.

6th April 2004, 08:39 PM	#2
coolkhoa diyAudio Member Join Date: Jan 2004 Location: Houston	Cool. Could you post the specs? I wonder if it can be the bass in a P13/D27 system. __________________ KTK. Kool To the Kore.

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6th April 2004, 08:49 PM	#3
Jim85IROC diyAudio Member Join Date: Dec 2003 Location: Stamford VT	Dickason lists 4 sets of specs, 2 samples, each tested with TSL model and LTD model. spec.........tsl sample 1........tsl sample 2.........ltd sample 1........ltd sample 2 fs........21.6..............21.0..............19.0 ...............19.2 re........3.42..............3.44..............3.42 ...............3.44 sd........0.0333 for all qms.....3.67.............3.53...............3.35.. ............3.65 qes.....0.51.............0.52................0.47. .............0.49 qts......0.45............0.46.................0.40 ..............0.43 vas.....73.5ltr.........60.6.................82.5. .............88.4 sens...83.5dB.........83.3................82.7.... ..........82.8 x-max..11.6mm for all If you plan to use this in a 3 way, due to the stellar sensitivity of this driver, you'd probably want to plan on using a separate high power sub amp on it. This sub's low sensitivity may also negate some of its small box advantage, sense active equalization on a more sensitive sub may yield similar results. But, it still models very nicely.