REL Quake driver specs

[Greg3333]

Does anyone have (or know where I could find) the specifications for the drivers used in the original REL Quake?

I've been in touch with REL and they say they don't have any information they could give me.

Thanks

Greg

 

[richie00boy]

I'm certain REL will have the information. Maybe you should have worded your request differently. They aren't going to give out their specs for people to build clones.

What do you need the specs for, what are you wanting to do?

 

[Greg3333]

I already have two of the drivers, new old stock. Having the specs for them would help me to work out the best way to use them.

REL technical support were friendly but said they didn't have anything for that model. Obviously someone at REL will have the specs but I wouldn't expect them to go out of their way to find the information for me.

 

[pinkmouse]

Are they the eBay 10" ones? If so, I have a pair as well, and once I get my new soundcard, I will be taking some accurate measurements with Speaker Workshop.

 

[Greg3333]

That's the ones. I'd be very interested to see what your findings are.

Greg

 

[Ivo_Hristev]

Hi there,
My advice is to measure the desired parameters. That`s the right way ( for me ).

Regards

 

[richie00boy]

OK now I see. Yes I second the suggestion to measure your own specs, even if you had them from REL. It's not too hard if you have a computer with soundcard, power amp and voltmeter capable of reading millivolts. If you are interested I can send you a draft version of a guide I have written which I would appreciate feedback on.

 

[phase_accurate]

I'd go one step further and run them in a bit first. And then I'd measure them.

Regards

Charles

 

[pinkmouse]

Ok, as promised the first set of results, before running in.

 

[Greg3333]

Pinkmouse, thanks for posting your results.

 

[Greg3333]

Edit: double post.

 

[Ivo_Hristev]

Thats` it!
You can run run the measurements several times ( itf the software allows it ) and take the mean value, thus the curve will look smoother and much more pretty.

 

[richie00boy]

Looking forward to seeing the results when run in Pinkmouse

 

[pinkmouse]

Just firing up the PC.

 

[pinkmouse]

OK, here we go after 12 hrs of 20Hz. Vas up a bit, Fs down. Much as I would expect really. I may well knock up a box to test Vas with the volume method, just confirm, but I don't have huge doubts about the above figure.

 

[pinkmouse]

Oh, and for those that asked, here's a couple of pics of the drivers. This one shows the front, and as you can see from the ruler, they are actually 8" drivers really.

 

[pinkmouse]

And the back, with the only markings shown:

 

[richie00boy]

Remind me, are these used sealed in the Quake?

 

[pinkmouse]

I think the originals were, but I suspect electronics...

Time to fire up Unibox I think.

 

[pinkmouse]

OK, I found a rough 32L box I could use, it's a bit leaky, but it will do for a quick check. Knocking off 2l for the driver, we get the results below. I suspect this is as good as it gets. Definitely not a sub driver I feel.

Hmm, now what to do with them? Put 'em back on eBay?