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Author Topic: Koda T50RP Frequency Response and CSD Waterfall Plots  (Read 9761 times)

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rhythmdevils

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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #40 on: November 20, 2012, 01:25:26 AM »

The cup volume is smaller than stock? 

Naked drivers alone wouldn't cause that dip, he must have something really funky going on. 
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LFF

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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #41 on: November 20, 2012, 03:03:09 AM »

The cup volume is smaller than stock? 

Naked drivers alone wouldn't cause that dip, he must have something really funky going on.

Yes...smaller than stock.

It's his dampening.
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devouringone3

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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #42 on: November 20, 2012, 03:47:45 AM »

That would be a good news, his dampening is more removable / modifiable than his whole cups. Have you tried doing anything to your pair while you had it?
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"The main purpose in designing the Grado Signature earphones was [...] most of all to motivate my colleagues, competitors, and otherwise to get off their butts and design and build products like I know they are capable of." – Joseph Grado

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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #43 on: November 20, 2012, 07:30:32 AM »

Yeah...I hate to burst your bubble but the set that Purrin measured is also a MKII.

You're sure? The FR measurements linked on the front page seem to match up with the earlier revision. Perhaps these improvements came after the MKII designation? I can't remember how it ended up playing out, but it really does look like the measurements purrin has up are for the much more broken version.
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devouringone3

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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #44 on: November 20, 2012, 08:00:41 AM »

The Koda^2-MKII are broken and sounds way too wonky for me to want to use them at all. They have a gross flaw in their midrange that (best example I can give) makes piano (but vocals, or anything, and too many things too, that fall into this frequency band I realize) piercing sounding and very harsh.

It's a weird flaw, that doesn't have anything to do with the stock T50RP. *Edit, I am guessing that this has got to do with that gigantic 650 Hz mountain of resonance in the CSD plot, right? I just noticed it

Other than that I think they have nice sub bass and okay T50RP highs? I would need to re-listen to them, I don't remember pushing the volume up much, maybe it was just too unpleasant to even think about trying it. I don't have them with me this semester, but soon enough I do intend to see if I can "fix" it; right now I don't have the mean and knowledge to do it, but I'll read and think more, and probably ask for your help ;) and Head-Fi's too.

If LFF tells me he have already tried and deemed them unsolvable because of their cup design... well... lol, I don't know, I'm stuck with them, so I'll still try anyway.
« Last Edit: November 26, 2012, 03:07:55 PM by devouringone3 »
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Re: Koda T50RP Frequency Response and CSD Waterfall Plots
« Reply #45 on: November 20, 2012, 10:59:43 AM »

This reminds me of a friend who bought very expensive tailor made shoes but they weren't comfortable in the least while I bought cheap shoes that only needed an inner support sole and two years on they're still good :-Z

How much hype did this Koda-thing need?
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