New: Faital Pro 12RS430

[danny_66]

Yes for Fs/Qms lower than 5 is OK,
Also compare the other parameters: better with high qms, low qes, low Le and low mms

 

[diyiggy]

Thanks, yup, I knew for the others parameters, although I stopped to look at mms because for bass you need rigidity. I look at BL and Eta Zero % too

 

[danny_66]

Yes, it's always a compromise, just find the one with the least compromises for the intended application

 

[duvixan]

Anyone bought a pair yet??
Post some pics, share impressions

 

[duvixan]

Tested here
https://hifi-selbstbau.de/index.php/hsb-datenblaetter/tieft/faital-12rs430

 

[CharlieLaub]

Only subscribers can read the post and see the test results...

 

[Nissep]

30 euro https://shop.hifi-selbstbau.de/produkt/abonnement-hifi-selbstbau/

 

[scholl]

PE has them now https://www.parts-express.com/FaitalPRO-12RS430-12-Professional-Woofer-8-Ohm-294-1332?quantity=1

 

[CharlieLaub]

I am surprised at the price at PE. Based on early leaked pricing (eg shown in this post, without VAT added) I originally thought these would be sold for around or even less than $200. Not so much of a deal at $300ish.

 

[duvixan]

price in Europe (no VAT)

 

[daanve]

@duvixan: these are prices based on having a commercial account at TLHP, VAT excluded.
I can buy them on this basis, but private customers can not.

 

[bobdebouwer]

A very interesting budget alternative is 12FE330 (8ohms, 92dB, Fs 33hz)
https://en.toutlehautparleur.com/speaker-faitalpro-12fe330-8-ohm-12-inch.html

Indeed, more than 8mm xmax, Fs 33Hz, 92db sensitive, flat on axis curve to2k, 250 watts and in the UK you can buy them around 100 euro...simulated in 60L sealed and extends easily to 50Hz. What is the catch??

Fs/qms=4.7

 

[CharlieLaub]

@duvixan: these are prices based on having a commercial account at TLHP, VAT excluded.
I can buy them on this basis, but private customers can not. View attachment 1246986

@daanve I need QTY=8 for my project, and I am definitely not going to pay US$300 each from PE. What are the requirements to get a commercial account? If someone can help me out, feel free to PM me.

 

[IamJF]

Not sure if they are happy with posting company prices here ;-). But yes, 300 is definitely to much for this speaker. There is a way nicer 12" for 300 bucks on the market.

 

[diyiggy]

Before the comunism kicks back and flood the world with coruption and goulags, it is good to look at mass market competition and here Tlhp are good, expecially when you see working charges in France (the last true comunism country, lol. I know I live here), so it means less margin and more solding volume I imagine. I encourage that and they are bretons so not french, lol ! ( I am customer, serious people and they ship fast). Too bad they don't sold ScanSpeak anymore.

 

[Azrael]

What is the catch??

(HC-HG)/2 of the 12FE330 is 5,65 mm.

 

[bobdebouwer]

@Azrael what do you mean, xmax on the datasheet is a lie??

 

[Kwesi]

No, definition for Faital Xmax calculation is stated on the datasheet:
Xmax= [(winding depth - magnetic gap depth)/2] + (magnetic gap depth/3)

This is quite common for PA manufacturers, as for Hifi it is more usual to take the more strict definition mentioned by Azrael. Values for Winding Depth and Magnetic Gap Depth are also on the datasheet, so no conspiracy here...

BTW, 10FE330 in CB together with 4FE42 as midrange (+ dome tweeter from another brand, e.g. SB19ST) may give a very nice budget compact monkey coffin...

 

[bobdebouwer]

Thanks! Interesting to learn, does it have any relationship to distortion? Will it start to distort past the "hifi" xmax value?

 

[Kwesi]

The simple x_max = +/- (voice coil winding height - magnetic gap height) / 2 rule just defined by the geometry is very old, and assumes that within that range the driving magnetic field is linear, as until then there is full overlap between VC and gap. It is a proven indication for perfomance, but no exact measurement as the BL(x) curve and Kms(x) curve are not ideally linear and vary from driver's to driver's overall specific design.

There is a newer proposal from Klippel company related to the nonlinearity of BL(x) and Kms(x) curves (when you are able to measure them) which correlate much better to expected THD output (still neglecting inductivity influence Le(i) and Le(x) EDIT: correction, there is even a definition for that, but for woofers in the low frequencies it matches pretty good):

https://www.klippel.de/fileadmin/kl...plication_Notes/AN_05_Displacement_Limits.pdf