Recent content by penguin121
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Footers and resonators -- how do they work?
Quote: Originally Posted by TheAttorney These are soft(ish) polymer material and metal sandwiches. They, allegedly, absorb the vibrations without storing-and-reflecting back. The bigger the area covered the better. This differs from pointy hard footers which, allegedly, drain away the...- penguin121
- Post #24
- Forum: Sound Science
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How fast are drivers?
Quote: Originally Posted by miloxo Lol, i didnt understand even a bit of what you said there But, 3,14*3,6= ~11 km/u. Isnt that like a bit 'too' slow? A side question: How can something that moves 11 km/u makes sound that travels with ~1000 km/u It isn't too slow...- penguin121
- Post #18
- Forum: Sound Science
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Victor HP-FX500 Review: World's first Wood Canalphones
Quote: Originally Posted by The_Blood_Raven Thanks for the heads up FLACvest, I might have to try them out, though the stock medium silicons are extremely comfortable already. I liked the stock medium tips too, the only issue was that I started to have problems with them wanting...- penguin121
- Post #863
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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How fast are drivers?
Quote: Originally Posted by JaZZ A membrane vibrating with 1 kHz and an excursion of 1 mm (±0.5 mm) has an average speed of 1000 x 2 mm = 2 m/s (triangle waves). I can't calculate the sinc function, but the estimated maximum speed of a 1 kHz sine wave will be about 4 m/s (= 14.4 km/h)...- penguin121
- Post #16
- Forum: Sound Science
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Practical Devices XM5
Quote: Originally Posted by mark2410 having read through i wondered if any one knew of a way to reduce the gain on this because oh i can see a small slip of the volume dial and then i go deaf You could try the 75 Ohm output switch. Other than that I don't think there is much else...- penguin121
- Post #353
- Forum: Portable Headphone Amps
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Where to get C710?
I got my C710 from B&H, and while they do appear to ship to Israel, there are two problems. They are out of stock at the moment and while the price is $100US, after shipping they would be $146US+. On a side note, is a shipping rate of $46+ for sending something the size of a standard IEM...- penguin121
- Post #4
- Forum: Portable Headphones, Earphones and In-Ear Monitors
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I have my hands ON the Sony X1000 Walkman - Impressions / Discussions
Haven't had a chance to compare a new X to a used X, but I don't think that sound quality of the X improves after 200+ hours. However, you might like its sound more after you get used to it, say from listening to it for 200+ hours.- penguin121
- Post #2,339
- Forum: Portable Source Gear
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DAP/PMP/DMP Brand Elimination Game
AMP3 69 HURT Cowon 97 HEAL /Fixed totals to remove double vote...- penguin121
- Post #537
- Forum: Portable Source Gear
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DAP/PMP/DMP Brand Elimination Game
AMP3 69 HURT Cowon 97 HEAL- penguin121
- Post #531
- Forum: Portable Source Gear
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DAP/PMP/DMP Brand Elimination Game
AMP3 67 hurt Cowon 99 heal- penguin121
- Post #523
- Forum: Portable Source Gear
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DAP/PMP/DMP Brand Elimination Game
AMP3 63 HURT Cowon 103 HEAL- penguin121
- Post #502
- Forum: Portable Source Gear
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Audiophile FUSES???
So if power cords and fuses affect the sound, what about all of the much longer runs of wiring behind wall, and all the way back to the power station for that matter? I have yet to read about anyone rewiring their house with "audiophile" grade wiring, so chances are it is still standard copper... -
DAP/PMP/DMP Brand Elimination Game
AMP3 53 HURT Cowon 113 HEAL- penguin121
- Post #464
- Forum: Portable Source Gear
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DAP/PMP/DMP Brand Elimination Game
AMP3 51 HURT Cowon 110 Sandisk 4 HEAL- penguin121
- Post #454
- Forum: Portable Source Gear
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DBT problems --methodology
Quote: Originally Posted by haloxt Quality of ketchup may not be vastly important to you if you only ate one hotdog a day. Eat more hotdogs a day and quality of ketchup increases in importance. Some people listen to music 5-10 hours a day, in which case they might feel cables to be...- penguin121
- Post #40
- Forum: Sound Science