My little homage to such a wonderful company. Thanks for many years of wonderful music!
Coral Speaker Drivers
Clockwise from top left: 8A-40, Flat 8, Flat 6 and Beta 6
I’m sold out on ALL Coral drivers. Whichever driver is still available on sale will be shown in the e-Store, so do check out there.
You could also find relevant Coral information on my Flickr page.
And on the seventh day, God created Coral Speaker Drivers.
Okay, okay, I’m full of bull here but these are, in my unabashedly unashamed opinion, one of the best speaker drivers around.
 Rear view. |
First things first, please stop writing me to enquire about Flat 8 drivers as I have sold all of them. No more. Finito. Finished. If you missed the boat, don’t be slow again! [If you have to ask me about availability of the 8s, give me your address first, so that I could drive to your place, and clobber you to dead with my pair of 8s.]
As you may still not know this (where have you been?), the Coral Audio Corporation has ceased operation in the mid-80s. I was told they were bought over by Mitsubishi Corporation. Which must be a sad day for the audio world as these wonderful drivers made more than 25 years ago are not only beating the shit out of MOST contemporary drivers TODAY but also amazes us at how well they withstood the test of time!
If you have no idea what how long that was 25+ years ago, consider this:
The King of Pop was Black.
US of A has a former actor as the President.
The British PM wore a skirt.
Today, we are not sure of all three!
Considering back then, without the aid of Computer Aided Design, it was really marvellous speaker drivers of such quality was designed and manufactured. I’m sure you must have read all the problems with single drivers on other forums, like lack of bass, thin-hollow sound, rising frequency response, surround needs changing every few years.. Plus all sorts of tweaks to improve her performance… Well, I don’t find a need for all this work! [Though adding a phase plug did bring an improvement.]
Now isn’t this amazing?! How did they do this back then? What has 25+ years of technology and R&D later give us? Boy, I sure wish I could talk to a former Coral engineer to learn more about this amazing company!
DIY Paradise has been extremely privileged and grateful for the opportunity to discover this warehouse of a former Coral distributor, and as such, have been selling these full range drivers for the last 2 years. To date, I have sold over 50 pairs of Flat 8s and 60 pairs of Flat 6s! Imagine New Old Stock vintage speaker drivers!
Differences in cone, whizzer and surround construction.
Left to Right: 8A-40, Flat 6, Flat 8, Beta 6.
So grab them while you still could!
Flat 8. SPL 95dB. 40-20000Hz. [NO LONGER AVAILABLE]
Flat 6. SPL 92dB. 45-20000Hz. [JUST SOLD OUT! Have some B-stocks though. Please write to enquire.]
8A-40. SPL 93dB. 40-18000Hz. RM400 / USD115 a pair
Beta 6. SPL 93dB. 40-20000Hz. RM1600 / USD460 a pair
Without a doubt, the Betas are the flagship models. The basket is diecast, instead of stamped. The ribs reduce reflection and look at the mojo binding posts!
Enclosures
I have had the privilege to listen to various Corals in bass reflex, sealed box, TQWT, spiral horn and the Hedlund horn cabinets. Out of all these, it is without a doubt the best sound came from the Hedlund horn. The spiral horn is pretty amazing too and it sure doesn’t take up much space! If you aren’t horny, here’s some enclosures.
Some of the designs I have played with.
Beta 6 in Hedlund horn, Double Flat 6s, Waily’s Flat 8 (i built this too), Flat 6s in Spiral Horn (i fitted a phase plug).
Feel free to write me if you want your own spiral horn for your Corals.
Search more info on Coral speaker drivers on the Net.
Hi,
Do you have any Flat drivers available for purchase?
Thanks,
Vladimir
Do you still have any Beta 6 drivers left? If so, how many do you have?
Thanks,
Jeff
Hi
I built a 8SA-1 from kit in 1982 and they are still working wonderfully. The one tweeter has gone and I was wondering if you can suggest a replacement fro it?
Thanks
John
Hi,
I have Coral speakers 10SA-3 60 w and 12SA-3 80 w.
Can anyone give me some information about the manufacture date?
Thanks
Virgilio
Portugal
have possibly 1 or 2 pairs of coral beta 6 left.
sorry, i wouldn’t know where to find replacement tweeter for this kit.
sorry, no idea about 10sa-3 nor 12sa-3. they couldn’t be later than mid 80s as coral cease to exist after that.
yeo
Hi,I have owned a pair of BX1401’s for over 35 yrs.I have to agree with you about how they have survived the test of time.They still perform as good as the day I got them,and they look great.Chest pounding bass,crisp highs ,all with less than one watt of equilized power.They just don’t make things like they used to.I am thrilled to own a piece of audio history.I will never give them up.Definitely the best purchase I ever made.I only wish Coral Audio was in business today.With today’s technology,the Coral engineers would be on top of the game.Hats off to Coral Audio Corp!! ROCK ON!!!
I have bought a pair of 12A66 from a collector but still don’t know what to do with it ,can any one give me some information.
Hello.
Nice to see more people missing teh Coral speakers.
I have a huge problem. One of the 15 L101 woofer in a
Coral Studio Monitor need complete reconing
Is this possible to find spares for this speaker?
All ideas are welcome.
The 15 L101 is having the cloth edge and not the foam edge as ´the 15 L70 and L100 has got.
Best regards
BC from Sweden
Hi Yeo,
Hope this gets to you … I would like to know if you have any plans or diagrams for a sprial horn for the 6A-102’s?
I bought a pair of the drivers from you last week … I’m planning a few forum entries … using your 3 current drivers …
Thx, Michael Lee
hi michael
i need to issue you a store credit as i’m having a sale on the drivers now.
you could treat it like a flat 6 so any plans using it will do.
i’ll go for spiral or some type of horn any day over other designs.
thx!
yeo
Hi ~ I am looking for a pair of Coral full-range Beta 6″ or 8″ (I think I would prefer the 8″). I am a music lover (cannot live without it) and I have built my own DIY Open Baffle speakers… my wife and I love our OB’s (Deborah loves music at least as much as I do and she really loves our OB’s played by a re-vamped EL-84 Heathkit 151A from the 1950’s). We are currently using a Visaton B200, 8″ wide-range driver that is not able to deliver the expressiveness and the nuances of the musical instrumental and voice sound-space the way I am certain the exquisitely designed Corals can.
If you have a pair for sale I would be deeply grateful if I could purchase them from you… if not, perhaps you could direct me to a source for them.
I love your website which is extremely informative and helpful in getting a sense of the genius that went into the design of the coral speakers. I deeply appreciate your kind attention.
With Warmest Friendship and Regards ~ Richard Waxberg / 805.640.0532
Long time ago I bought a pair of Coral 12L-25B. I suppose these are woofers. Does anyone know how where to get technical details such as the Thiele-Small parameters of these drivers?
hi arthur
i’m sorry i don’t have specs of this driver.
i have uploaded all the coral info i have to flickr. the compilation below is done by diyer ian.
http://www.flickr.com/photos/63986746@N03/sets/
i would guess 12L-60 is quite close in specs to your driver.
yeo
Found them! They are here:
http://www.machmat.com/sales/speakers.htm
Coral 12L-25B
Paper cone 12″ bass driver, about 94 dB sensitivity, lineair upto 3kHz, Re=6.6 Ohm, Fs=44 Hz, Qms=11.8, Qes=0.62, Qts=0.6, Mms=40 g, Cms=0.33 mm/N, Vas=110 L, BxL= 10.8 N/A, L1k=2.6 mH, 60W, 8 Ohm, Data measured with Clio
I´m looking for a pair of Coral 8f-60.
Is there anybody selling those??
Kind regards
Christian
hi christian
i’m afraid they are very hard to come by these days… any coral drivers…
best is to try your luck at ebay or other auction sites.
yeo
I have a pair of coral 6a-102, but there is not much info of this driver in the Internet….. 😳
Don’t know what cabinet is suitable for this driver,how about the result fix it in spiral horn?
May I have the plan of the spiral horn?
Hope someone can help……tq
Ben
it should work well in a spiral horn. a google search on “spiral horn” brings up this site.
http://www3.ocn.ne.jp/~hanbei/eng-intro.html
yeo
Hello. I picked up a pair of Coral BX-601 at an auction only to find that both speakers only produces a VERY VERY thin sound that can only be barely heard at hight volume.
Does something seem like a likely culprit for this? I tested on two receivers with two different sets of speaker wire. Both produced the same results.
I like the speakers. I’d love to repair or even use the boxes to build up an updated set. However, I’d be happiest having them work as original as possible.
Regards,
N
hi nathan
if the speakers are very old, i would worry whether the connecting wires, binding posts etc are still in good condition to conduct current or it’s badly oxidized. i mean the internal wires inside the speaker. you would need to open it up and take a look.
i would check this first.
thx!
yeo