PMC posted Spins.

[dfuller]

So far it's only for the PMC 10, 12, and 15, but still - anything is better than nothing.

In short...

Axial response? Still pretty rough, especially on the 10 and 15. The 12 is actually okay for the most part.

But the directivity is actually pretty good. Like, shockingly good considering the design of the speakers.

It's worth noting there does seem to be some artifacting from the measurement environment.

 

[Curvature]

@pierre

Let me know how I can help with the scans.

 

[dfuller]

@pierre

Let me know how I can help with the scans.

The raw PDFs are on the product page for each of these, if you want higher res.

 

[LiveTek]

For how much they cost, seems kinda bad.

What in tarnation is this 20-200-2000hz graph labeling. Was 10-100-1000hz bad or something?

 

[pierre]

@pierre

Let me know how I can help with the scans.

scans incoming. I did automate the extraction and i am working on making it better.

 

[dfuller]

For how much they cost, seems kinda bad.

What in tarnation is this 20-200-2000hz graph labeling. Was 10-100-1000hz bad or something?

It's not great, but I don't know the circumstances under which these measurements were taken. Some of this could be reflections.

As for the 20-200-2k thing it's just decades, but the cutoff points are different. It's still X-10X-100X.

 

[pierre]

scans incoming. I did automate the extraction and i am working on making it better.

4 spins are uploaded. Check them since mistakes are likely. Note: they looks like in-room measurements not anechoic. flatness is probably better than that in practice. Clean output is insane.

 

[see_no_evil]

at first I was like

but after looking at those...

 

[SoupRKnowva]

they did the 10-4 as well.

 

[YouDontHaveEnoughBass]

tbf some of those are pretty good! rough FR but smooth directionality, wouldn't be hard to EQ them into shape (except for the pmc10-4 youch)

 

[IngMishael]

they did the 10-4 as well.

View attachment 558300
View attachment 558301

THE HELL

 

[digitalfrost]

Well they are not the best measurements but I applaud them for the transparency.

 

[Matt_Holland]

The common (ish) theme is the emphasis centred at approximately 1KHz presumably for vocals when monitoring, and the rising on-axis treble. I remember a hifi magazine interview with Peter Thomas moons ago where he said he tuned the HF with this rose so that the “room” response, or power curve as he called it, was flat. He believed the at was the correct tonal balance.

 

[3125b]

THE HELL

It's inevitable with that driver aggangement, I just wonder what possessed them to make this.

 

[LiveTek]

It's inevitable with that driver aggangement, I just wonder what possessed them to make this.

Probably the 100k+ in mark up they'll make on them. The prices are ridiculous on their stuff.

 

[Matt_Holland]

These speakers have a dedicated DSP rack amp with digital crossovers. So very deliberately not linear.

Peak SPL is pretty mega.

 

[dfuller]

It's inevitable with that driver aggangement, I just wonder what possessed them to make this.

Sheer SPL. 4 10" woofers with the excursion capabilities they have (they're basically sub drivers that can extend a little higher) is a lot of output.

 

[thewas]

I doubt the Genelec 8381a with its 3x15" woofers has significantly less SPL capabilities without being such a mess, having also the advantage of the three bass steering modes and offered for a quite lower price.
Just had a look and it seems the PMC has a bit higher peak SPL and the Genelec a bit higher continuous max SPL.

 

[wwenze]

they did the 10-4 as well.

View attachment 558300
View attachment 558301

Oof

 

[kharan]

I doubt the Genelec 8381a with its 3x15" woofers has significantly less SPL capabilities without being such a mess, having also the advantage of the three bass steering modes and offered for a quite lower price.
Just had a look and it seems the PMC has a bit higher peak SPL and the Genelec a bit higher continuous max SPL.

Genelec also has this, the 1236A with 2x18".