The Family of Curves

Posted by: Ian

The Family of Curves - 07/15/13 11:09 AM

The video for the newsletter this month is on the importance of the too-often ignored topic of the Family of Curves. The Family of Curves can be a daunting topic to try and explain but Andrew and I decided we would give it a go.

Family of Curves Video
Posted by: tomtuttle

Re: The Family of Curves - 07/15/13 01:02 PM

Originally Posted By: Andrew
Now, this is obviously a mess, and very difficult to interpret

Loved that. smile

Very informative and interesting information! I think this topic - and this design philosophy - is both what makes Axiom speakers so special, and also what makes Axiom products so often misunderstood.

Posted by: Ian

Re: The Family of Curves - 07/17/13 01:07 PM

Thanks Tom, I am so glad you enjoyed it. It is a tough topic to do in a reasonable length video. We tried to keep to the highlights without getting too deep into one detail or another, of which there are lots. The family of curves is where the vast majority of the work needs to go in a good speaker design.

As mentioned in the video we are thinking of doing a related video focusing just on High Q versus Low Q amplitude response differences and their effect on the listening experience. Perhaps even including some actual score sheets from the blind listen test results that could be compared to the measurements. Our concern with topics like this is that we may be getting too much into the nitty-gritty detail and lose the interest level. Feedback from yourself and others on topics like the family of curves is very much appreciated.
Posted by: Murph

Re: The Family of Curves - 07/17/13 02:52 PM

As long as I'm learning, I'm happy to get more and more info.
Keep it coming, I say.

If you feel it's too technical and might dissuade the average consumer, post it only on the discussion board and not a direct link from the consumer focused sight. I'd agree, there is a potential for too much info on the marketing/sales focused pages but here on the forum, we can choose to read what we wish.
Posted by: JohnK

Re: The Family of Curves - 07/17/13 09:36 PM

Ian, bring on that info, especially including the blind listening score sheets! Anyone not interested shouldn't matter.
Posted by: jakewash

Re: The Family of Curves - 07/17/13 11:34 PM

Oh yes, keep it all coming. I don't think there is ever a case of too much information when it comes to this sort of thing.
Posted by: CV

Re: The Family of Curves - 07/18/13 01:13 AM

Yes, Ian, please keep letting us learn. Great stuff!
Posted by: Boltron

Re: The Family of Curves - 07/18/13 04:14 AM

Thanks for sharing, very informative.
Posted by: PatCase

Re: The Family of Curves - 07/18/13 06:38 AM

Wow! So incredibly interesting. This represents all new learning for me. You did a great job explaining something that I am certain is almost infinitely complex, to laypeople.

As I await my new M100s, I wonder what you discovered and played with in relation to that speaker's family of curves. Given the new drivers and the additional driver, I am sure that, unlike the periodic tweaks to the existing line, it was like designing an entirely new speaker and not just shoving an additional driver into the box.

I especially liked the information about how family of curves analysis influences manufacturers and helps to produce differentiation amongst NRC parented speakers.

How long would family of curve analysis and adjustment take for a new speaker like the M100?

By the way, keep things like this coming!
Posted by: Adrian

Re: The Family of Curves - 07/18/13 03:20 PM

Thanks for the informative video, Ian and Andrew. It's obviously quite involved but we can at least get the gist of it.

If you ever had the time, it would be interesting to see a vid on the various driver parameters and their influences on the overall design and how it affects what we hear.
Posted by: brwsaw

Re: The Family of Curves - 07/19/13 12:59 AM

Catastrophic failure while showing actual power consumption and big grins all around gets my vote.
Posted by: brwsaw

Re: The Family of Curves - 07/27/13 03:28 PM

I can't be the only one would wants to see controlled mayhem.