Coral 8A-40

[het_yak]

Hi All,

I have purchased two pairs of Coral 8A-40 and would like to know which of the "spawn of frugel" would bring out the best in them. If there are other designs to consider I would be glad to learn them.

Thanks in advance

Leon

 

[Scottmoose]

Got any T/S parameters? I've never done anything for the Corals mainly because AFAIK, they never gave any measurements, beyond the old, pre T/S Qo, & magnet gauss information.

 

[het_yak]

Hi scottmoose,

I am trying to find the TSP for a week now and I can not even find the 8A-40 among all corals mentioned on the Web except at diyparadise. Yeo told me to use the data of the Flat 6 and I have only been successful in finding the TSP for the flat 6II.

Coral Flat 6 II :
Re=7,5 Ohm
30Watt
SPL=92dB
Fres=67Hz
Qms=6,9
Qes0,54
Qts=0,50
Vas=37,6 Liter

I think I will need to find someone who can measure the tsp of the 8A-40 to be accurate. I was hoping someone had already done just that.

Friendly regards

Leon

 

[paba]

Hey,

two options to measure your drivers... if you have a PC.

99$
www.partsexpress.com/pe/showdetl.cfm?&Partnumber=390-804

or for more money, but more complete, the woofer tester 2
www.woofertester.com/products.htm

cheers
/Paba

 

[het_yak]

Hi Paba,

Thanks for the links. That is already a lot cheaper than sending them away for measurement. I had a quote of 39 euro per speaker to measure the TSP.

Thanks again.

Leon

 

[paba]

yeah and then YOU can start charging for TSP measurements

don't forget shipping and possible customs fees.

You may have more speaker projects in the future too.

cheers
/Paba

 

[het_yak]

Good morning Scott moose, Paba,

Thanks, for your responses, I will establish the T/S parameters first and repost my question with a bit more detail.

Friendly regards

Leon

 

[alexg]

Hi Leon,

Were you able to get the TS of the Corals?

I have a pair of those, Coral 8A-40 and am interested with the TS parameters if you have them.

What cabinets did you build for them?

Regards,

Alex

 

[olg28]

Hello het_yak !

Do you have a speaker workshop ( like "La maison du haut parleur" or "HP système" in PAris ) near you ?
Otherwise with "TGV" you can go to Paris because "LaPoste"

Olivier

 

[het_yak]

Hi Alex,

Sorry for the late reply, I have not found or measured the T/S parameters yet. seems to be less simple as it sounds. I am planning on building a cabinet as proposed by coral for the flat 6beta. According to a few people that should come close. I can not find a cabinet proposal for the 8a-40. Coral does not even mention these chassis.

Bonjour Olivier,

Helas, I am located in the "Gard" and going up to paris to have some chassis measured will have to wait until the occasion arises. I will try to find an equivalent store in nimes, montpellier or avignon although I doubt there is any.

Friendly regards

Leon