Recent content by Malvin
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O2 Build Complete: Let the objective, subjective listening tests commence!
This test was done using 1/4 jack, which i think is more like 15 mOhm (I can try to locate its datasheet). btw this unit also has 1/8 jack wired in parallel, I can try to rerun these tests in a different configuration.. As for the crosstalk being better for 330 Ohm vs no load at...- Malvin
- Post #125
- Forum: Sound Science
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O2 Build Complete: Let the objective, subjective listening tests commence!
Speaking of those observing much worse RMAA results/crosstalk .. These are all DIY builds, and there is no quality control in a normal sense. Parts could be different, build quality can suffer, test setup itself could create additional crosstalk.. I'm not saying this was the case, but...- Malvin
- Post #121
- Forum: Sound Science
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O2 Build Complete: Let the objective, subjective listening tests commence!
Quote: Ok, let me share mine.. Just not to get into this 2ch vs 3ch debate let's take a passive-ground amp: CK2III (I have one in my headamp collection). Test setup should be straightforward in this case. My CKK is a pretty standard (and economical) build, with a...- Malvin
- Post #120
- Forum: Sound Science
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O2 Build Complete: Let the objective, subjective listening tests commence!
Is it A/B testing circuit? Just in case you plan to test 3-channel beta vs 2 channel O2, you might need 3 pole switch (to switch between real and virtual ground).- Malvin
- Post #90
- Forum: Sound Science
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O2 Build Complete: Let the objective, subjective listening tests commence!
I can second that. Volume-matching is absolutely necessary in any A/B test. Louder amp will is more likely to be perceived as sounding better. When levels are carefully matched, you might be surprised how close they all sound. Don't get me wrong - the difference is still...- Malvin
- Post #53
- Forum: Sound Science
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O2 Build Complete: Let the objective, subjective listening tests commence!
In my experience: Cost of parts (including shipping) is just way below that. However, if it is someone's first build - it might get expensive considering cost of necessary tools, lack of experience, parts that were missed (not ordered) initially.. Plus casing this thing up...- Malvin
- Post #51
- Forum: Sound Science
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Possible damaged headphone drivers (Sennheiser HD650)
Thank you very much Ham Sandwich, I did check resistance - seems perfectly fine for both - 296 Ohm I'll try to open them up and inspect carefully.- Malvin
- Post #12
- Forum: Headphones (full-size)
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Possible damaged headphone drivers (Sennheiser HD650)
Hi ImitationOfLife, It's an old thread, but I wonder how it worked out for you.. Did you manage to test/replace the driver? It looks like I have the same problem which I just noticed yesterday. There is annoying buzz in the right driver which is noticeable when playing low tones...- Malvin
- Post #10
- Forum: Headphones (full-size)
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We Got Ti Kan (AMB) an HD800!
Count me in. m3, mini3, ckIII, jisbos, y1, beta22 etc.. Thank you, Ti- Malvin
- Post #170
- Forum: DIY (Do-It-Yourself) Discussions
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Calling E-mu 1212M modders
I have my 1212m modded this way (four coupling caps are bypassed). The card has stock opamps in it. I measure a very modest DC offset at the unbalanced outputs: 7.6mV and 1.9 mV for the left and right channel respectively. At the output of my headphone amp (M-cube) connected to the EMU at the...- Malvin
- Post #6
- Forum: DIY (Do-It-Yourself) Discussions
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NY Area Fall Meet, Nov 14, 2009, Harrison NY - It's Official!
Quote: Originally Posted by MrSlacker If anyone needs a ride from Brooklyn, let me know. MrSlacker, you've got a PM. Thanks- Malvin
- Post #408
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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NY Area Fall Meet, Nov 14, 2009, Harrison NY - It's Official!
Quote: Originally Posted by erikzen My CD player has both optical and coaxial out and I'll be using the optical. You're welcome to park next to me and grab a feed from it. Of course, I've never tried to use both outputs at once. I assume it should work. erikzen, thank you very...- Malvin
- Post #407
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers
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NY Area Fall Meet, Nov 14, 2009, Harrison NY - It's Official!
I’m lucky to notice this event BEFORE it actually happened :-) I can bring Sennheiser HD-650, Audio Technica ATH-M50s, DIY CK2III headphone amp, and a DIY AYA DAC (rev 2.0b). AYA is a nice sounding piece of equipment but unfortunately I do not have a decent digital transport to match its...- Malvin
- Post #396
- Forum: Local / Regional Head-Fi Meets, Parties, Get-Togethers