Fostex FE126En in an Fonken enclosure?

[planet10]

No idea... it may work in a fonken-like box, but unlikely be optimized for any that already exist.

Do you have data measured in LEAP or LMS?

dave

 

[Pepe]

No I don´t have any LEAP or LMS and I don know what it is eihter... hahaha.
I have little knowledge regarding speaker building I just enjoy listening to music and the flat 5´s shure do sound sweet but they aren´t givin me any tones below 150 hz in the cabs I´m using now so they don´t match up well with my sub.
I gues I´ll try some of the closed boxes in the old coral papers, only problem is that they are HUGE, 84 liters for fo 75hz or 40 liters and fo 80 hz !!!!

if any one is interested in the old coral papers I found some scaned by diy-paradise:

coral encl plans | Flickr - Photo Sharing!

and

Coral flat10 plans | Flickr - Photo Sharing!

Thanks for the help!

Best regards
Peter

 

[Pepe]

Hi Dave.

Found this about the coral flat 5ii's

Coral Flat 5 II 14,5cm*R6,9Ohm*20Watt*SPL91dB*Fres101Hz *Qms8,9*Qes0,83*Qts0,76*Vas3,64*3,1g

I know my drivers are old, but could thees specs be used (they are the ones for new drivers)?

Does the specs change much over time and use?

Peter

 

[planet10]

Peter,

Wow, Vas of 3.64 ft^3!!

With specs like that, you need a BIG box, it simmed nicely in an 1100 liter box (i have a sticky 1 key), an infinite baffle, or a slightly smaller aperiodic box. You'll still only get bass to about 100 Hz.

Most practical use is as a mid-tweeter in an open baffle. This would also cover for the fact that parameters will change as the driver ages.

dave

 

[Pepe]

Think the vas might be 3.64 liters, not shore though.

Wich makes vas 0.128545387 cubic feet.

Specs are from:

Vintage SpectrumAudio

Since they use metric system in Germany I assume it's in liters.

Peter

 

[vinylkid58]

Think the vas might be 3.64 liters, not shore though.

Which makes vas 0.128545387 cubic feet.

I don't think that's right either. I've got 12.97 liters in my DB, but that could be wrong too. Only way to know for sure is to measure them.

jeff

 

[planet10]

Think the vas might be 3.64 liters, not shore though.

After your comment about big box, ft^3 made more sense. <4 liters is small for this size driver.

dave

 

[Pepe]

My bad, you are probably right Dave.

Don't know how I calculated that????
Should be:
3.64 ft^3 = 103.073322 liters.

Peter