Fertin project - calling all open baffle experts - Page 12

reverendclark · 10th October 2002, 08:30 PM

I concur. The top and bottom octaves are often dodgy unless you have a pretty high quality set up. That Radio Shack misery isn't even heavy enough to be a good paperweight.

Still and all, -10dB >10k and -10dB <70hz is not particularly impressive.

Peter C

bcherry · 11th October 2002, 12:13 AM

That 40 to 20K +- 3db stuff is only free air/anoechoeic (sp?) chamber measured. Real room measurements are all over the spectrum. Also, as said, my TES SPL meter may not be that accurate throughout the range. But I can assure you the Fertin's sound great, with sparkle on top, full midrange and now bass. Later, I'll be using the Behringer to measure again. It comes with a microphone that is sensitive on the top end and probably more accurate throughout the range.
All the speakers I've measured in room (office and home) are bumpy like that. sometimes +- 15db. The Fertin was relatively smooth compared to others. The mic used was the one attached to the TES SPL meter.

An interesting thing about dipole dispersion: Just before putting the golden ratio baffles in place I was testing the Tannoy GRF with the Sheffield test record. Placed 1M away from the wall, they had LESS bass (50hz) at the listening position than the Fertin/Golden Ratio baffles. But at a position physically standing between the speakers (standing at my turntable), there was a ton of it. But the Fertin's had good bass at the listening position, but a little LESS standing at my turntable.

It's an education.

Brian

bbaker6212 · 11th October 2002, 12:51 AM

Re: bass output - I guess that's the working of the more narrow di-pole "8" shaped radiation pattern.

Brett · 11th October 2002, 01:29 AM

Guys,

What's the rated sensitivity of the Fertin?

Peter C: Thanks for the info about the Fane. I've been offered a pair of NIB Fane coaxes, but I haven't got a model # yet. I also have some Beyma 380 1"drivers (really luvverly driver) and I wondered if this might be a good setup for a friend.

Cheers

Peter Daniel · 11th October 2002, 01:32 AM

Quote:

Originally posted by Brett
Guys,

What's the rated sensitivity of the Fertin?

http://perso.wanadoo.fr/hpfertin/specif2.htm

Brett · 11th October 2002, 01:48 AM

Thanks Peter.
I used to have that page bookmarked before the HDD crash.
The 38EX has all the specs to make a nice midbass horn, but if the 20EX's are $1500 / pr, I'd hate to think what they cost. Oh, well, Altecs or EVs for me.

Toodlepip

Peter Daniel · 11th October 2002, 01:56 AM

I hate to think what shipping and duties/taxes would be on them.

reverendclark · 11th October 2002, 03:22 AM

Brett,

I'd snap up the Fane/Beyma combo, were it me.

Peter C

bbaker6212 · 11th October 2002, 03:23 AM

I don't understand what's up with the lack of marketing by Fertin and their distributor(s) if this product is everything claimed here. This single discussion thread is probably the most marketing/exposure this product has ever had in the USA.

Also, if FR's like Fertin and PHY are so awesome, why don't they see more action at audio shows and in by more cabinet makers?
So what if they can't make as much money on open baffles as cabinets. They could design/sell good f-coil variable power supplies in conjunction with the baffles/cabs. Surely if there's money to be made in AC power supply/filters the same is true here.

cowanrg · 11th October 2002, 04:01 AM

agreed. i have only heard of lowther and fostex until now. im very interested in making a "simple is better" complete DIY setup. i will of course use my aleph2's once completed, and im looking into a single driver full range speakers setup, possibly open baffle.

i just wish more speakers companies would think outside the box, or rather without it

Quote:

Originally posted by bbaker6212
I don't understand what's up with the lack of marketing by Fertin and their distributor(s) if this product is everything claimed here. This single discussion thread is probably the most marketing/exposure this product has ever had in the USA.

Also, if FR's like Fertin and PHY are so awesome, why don't they see more action at audio shows and in by more cabinet makers?
So what if they can't make as much money on open baffles as cabinets. They could design/sell good f-coil variable power supplies in conjunction with the baffles/cabs. Surely if there's money to be made in AC power supply/filters the same is true here.

11th October 2002, 12:13 AM	#112
bcherry diyAudio Member Join Date: Mar 2002 Location: Hong Kong	in room frequency measurements That 40 to 20K +- 3db stuff is only free air/anoechoeic (sp?) chamber measured. Real room measurements are all over the spectrum. Also, as said, my TES SPL meter may not be that accurate throughout the range. But I can assure you the Fertin's sound great, with sparkle on top, full midrange and now bass. Later, I'll be using the Behringer to measure again. It comes with a microphone that is sensitive on the top end and probably more accurate throughout the range. All the speakers I've measured in room (office and home) are bumpy like that. sometimes +- 15db. The Fertin was relatively smooth compared to others. The mic used was the one attached to the TES SPL meter. An interesting thing about dipole dispersion: Just before putting the golden ratio baffles in place I was testing the Tannoy GRF with the Sheffield test record. Placed 1M away from the wall, they had LESS bass (50hz) at the listening position than the Fertin/Golden Ratio baffles. But at a position physically standing between the speakers (standing at my turntable), there was a ton of it. But the Fertin's had good bass at the listening position, but a little LESS standing at my turntable. It's an education. Brian

11th October 2002, 12:51 AM	#113
bbaker6212 diyAudio Member Join Date: May 2002 Location: Los Gatos, CA	Re: bass output - I guess that's the working of the more narrow di-pole "8" shaped radiation pattern. __________________ -Brad-

11th October 2002, 01:56 AM	#117
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I hate to think what shipping and duties/taxes would be on them. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th October 2002, 03:23 AM	#119
bbaker6212 diyAudio Member Join Date: May 2002 Location: Los Gatos, CA	I don't understand what's up with the lack of marketing by Fertin and their distributor(s) if this product is everything claimed here. This single discussion thread is probably the most marketing/exposure this product has ever had in the USA. Also, if FR's like Fertin and PHY are so awesome, why don't they see more action at audio shows and in by more cabinet makers? So what if they can't make as much money on open baffles as cabinets. They could design/sell good f-coil variable power supplies in conjunction with the baffles/cabs. Surely if there's money to be made in AC power supply/filters the same is true here. __________________ -Brad-

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10th October 2002, 08:30 PM	#111
reverendclark diyAudio Member Join Date: Feb 2002 Location: Scottsdale, AZ	I concur. The top and bottom octaves are often dodgy unless you have a pretty high quality set up. That Radio Shack misery isn't even heavy enough to be a good paperweight. Still and all, -10dB >10k and -10dB <70hz is not particularly impressive. Peter C

11th October 2002, 01:29 AM	#114
Brett diyAudio Member Join Date: Jan 2002	Guys, What's the rated sensitivity of the Fertin? Peter C: Thanks for the info about the Fane. I've been offered a pair of NIB Fane coaxes, but I haven't got a model # yet. I also have some Beyma 380 1"drivers (really luvverly driver) and I wondered if this might be a good setup for a friend. Cheers

11th October 2002, 01:48 AM	#116
Brett diyAudio Member Join Date: Jan 2002	Thanks Peter. I used to have that page bookmarked before the HDD crash. The 38EX has all the specs to make a nice midbass horn, but if the 20EX's are $1500 / pr, I'd hate to think what they cost. Oh, well, Altecs or EVs for me. Toodlepip

11th October 2002, 03:22 AM	#118
reverendclark diyAudio Member Join Date: Feb 2002 Location: Scottsdale, AZ	Brett, I'd snap up the Fane/Beyma combo, were it me. Peter C

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