Amps Atma-Sphere M-60 Mono blocks OTL design

+1 to Charles’ comment. Great job, Ozzy. Between developing the DIY speakers, becoming proficient with the DEQX, and integrating both of them with subs and two very different amps, you’ve certainly dealt with a multitude of challenges.

And Bob, +1 to all of Ozzy’s comments about DEQX. Regarding the graphs, btw, when you go through my posts in the sections of the DEQX thread I referred to you’ll find links I provided to graphs of the speaker and room measurements I took, and the resulting calibrations. As well as descriptions of the necessary measures I took to minimize the effects of room reflections on the speaker measurements, which as will generally be the case included (among other things) moving the speakers from their normal positions. That can be a challenge if the speakers are large and heavy, of course, and for one reason or another it will probably have to be done more than once.

Best regards,
-- Al

Thanks ozzy and Al! 
I have been reading and rereading the manual, as well as the thread Al linked to.It is a lot of information, and I am not the most technidally proficient person. So, sorry if I repeat something that has already been answered.

Has anyone used the DEQX on phase aligned speakers like Vandersteens? As a Treo owner, I would be curious to see what a phase aligned speaker would show on a graph. I think I saw a mention on the long  thread Almarg linked to, but I can't find it again.
Bob

Hi Bob,

I don’t recall anyone reporting having used a DEQX with a time coherent speaker (e.g. Vandersteen, Thiel, Green Mountain Audio).

BTW, time coherence implies phase coherence, but phase coherence does not necessarily imply time coherence. Many speakers are phase coherent without being time coherent. See the post dated 7-15-2014 by Roy Johnson of Green Mountain Audio in this thread:

https://forum.audiogon.com/discussions/sloped-baffle

As you've probably seen in the past, though, John Atkinson’s measurements that are presented in conjunction with most speaker reviews in Stereophile sometimes provide impulse response graphs (and associated commentary), and usually provide step response graphs, which can also provide insight into time domain performance.

Presumably the time alignments provided by DEQX would not provide a benefit in the case of a speaker that is inherently time coherent, such as your Treo. But of course the frequency response and room corrections it provides would presumably still be applicable. As well as preamp functionality that is provided by some models, and A/D and D/A converter functionality.

Best regards,
-- Al

@almarg , et al.
Considering how much you are doing to the original signal (when processing through the DEQX), do you think you are altering it to something 'unnatural'?
Bob