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Author Topic: Sony MDR-V6 Frequency Response and CSD Waterfall Plots  (Read 14054 times)

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maverickronin

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Re: Sony MDR-V6 and MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #10 on: June 22, 2012, 12:44:14 AM »
IDK if they changed but I'm pretty sure that the V6 and 7506 were supposed to either identical except for marketing or that the 7506 was a very slight tweak on the V6.

Are you doing anything to make sure the pads have some pressure against them like if you were actually wearing them?  That can cause ups and downs in the bass like that if the pads have the right consistancy though they're usually sharper.
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anetode

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Re: Sony MDR-V6 and MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #11 on: June 22, 2012, 01:01:13 AM »
The same odd bass deficit showed up on the last 1350 measurement. Could there be some measurement artifact that's unaccounted for?
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Marvey

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Re: Sony MDR-V6 and MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #12 on: June 22, 2012, 01:12:29 AM »
Let me check... interesting. I've got the same V-Moda's I measured last year for reference.
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SanjiWatsuki

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Re: Sony MDR-V6 and MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #13 on: June 22, 2012, 01:32:34 AM »
Besides that, we have a remarkably clean waterfall CSD for a closed-back headphone of that budget that isn't a T50RP mod. I'm reasonably impressed. Assuming it isn't invalidated by the test rig being a bit wacky right now.
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Marvey

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Re: Sony MDR-V6 and MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #14 on: June 22, 2012, 01:38:22 AM »
Glad you guys caught this one. For the sealed headphones, the bass compensation curves were off about 5db. I need to recalculate the T5p, DT1350, and these. Recent change / bug in code which I didn't notice. This is what I get for not listening. Results will change a little bit, but the DT1350 is still going to look very different from the others.

EDIT: No wait... let me check again...

Yup comp curves. Will update results tonight.
  • Will apply proper comp to T5 and DT1350
  • Will squish pads of Sony.
« Last Edit: June 22, 2012, 02:21:31 AM by purrin »
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Marvey

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Re: Sony MDR-V6 / MDR7506 Frequency Response and CSD Waterfall Plots
« Reply #15 on: June 22, 2012, 03:06:25 AM »
hmm wierd... everytime i try to upload the proper FR graphs, it crashes the server.

OK - uploaded new measurements... Correct compensated graphs - squished and conformed pads in to max bass too!

It sounds much much worse than it measures!
« Last Edit: June 22, 2012, 04:17:22 AM by purrin »
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maverickronin

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Re: Sony MDR-V6 Frequency Response and CSD Waterfall Plots
« Reply #16 on: June 22, 2012, 04:22:23 AM »
Lulz...Now there's too much...

That's the big advantage to a proper HATS though.  You get something a lot closer the the seal they'd get on a real head.  I don't know if that would screw up the CSDs though...
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Marvey

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Re: Sony MDR-V6 Frequency Response and CSD Waterfall Plots
« Reply #17 on: June 22, 2012, 04:24:44 AM »
That's that problem with the HATS, they screw up the CSDs. I would use the ear that Tyll gave me. Let me unsquish the pads.
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maverickronin

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Re: Sony MDR-V6 Frequency Response and CSD Waterfall Plots
« Reply #18 on: June 22, 2012, 04:42:04 AM »
I think the head is more important than the ear.  You have to squish the pad just the right amount and putting it on something head shaped is the easiest way.

Otherwise you'll probably have to break out force gauges, weights, and crap...
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Marvey

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Re: Sony MDR-V6 Frequency Response and CSD Waterfall Plots
« Reply #19 on: June 22, 2012, 04:44:47 AM »
I put a few rings of foam to lift up the headphone as if it were sitting on a ear. Then I applied the usual compensating functions. This looks better. I noted that if I press down on my ears, then I get the bass. This is definitely a tough one. Make you appreciate how smart Sennheiser has always been with their non-squishy pads, but still comfy pads of fairly large circumference.
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