kijanki
Responses from kijanki
| Jitter and 75ohm cable length Let me add to Al's great post. As he stated, typical transport has transition times in order of 25ns. Threshold resides most likely at the half of that - 12.5ns while impedance boundary, that causes reflection will reside on the other end of the c... | |
| Jitter and 75ohm cable length Rpg,Jitter is basically a noise in time domain. Applied to one frequency it creates sidebands at very low levels. In spite of low levels (less than -65dB) sidebands are audible being not harmonically related to root frequency. Now, take whole bunc... | |
| Jitter and 75ohm cable length "The Stereophile test showed it to be awful."Not exactly. High jitter appears on analog outputs only. Digital is about 10x better (258ps vs 2400ps) and that's what Stereophile stated:"The noise floor has dropped by 45dB, the word-clock jitter to ... | |
| external drive for mac mini My Mac Mini internal DVD drive needs laser cleaning about once a year. 10 seconds job with cleaning CD and no problems for a year. You can also replace internal drive.External "rock solid drive" might use exactly the same (or not better) drive ins... | |
| Top 10 Snafus to avoid when building a good rig Avoid not having enough money! | |
| non redbook CD's Garn509,Agree, it is strange. It is even possible that copy plays and sounds better than original since poorly printed CDs make CDP to skip (pop) or interpolate missing samples, while perfect CD-R copy of the same CD can be achieved using programs... | |
| non redbook CD's "Also, MP3 is more of a problem than RW" CD-RW is a problem with older CDP that have weaker lasers since CD-RW has about half of reflection of CD. Most of DVD players have inherent MP3 playback. They usually have poor sound but decent transport wi... | |
| Using BLER to determine audio quality of CDs? Dhl93449, CD read errors are corrected to certain degree and interpolated above it. For instance, scratches along the disk shorter than 4mm will be corrected but between 4-8mm will be interpolated. Above 8mm gap/pop is produced. | |
| Are Disc Players Dead? That's true, all drives eventually fail, except drives that are not in use - backup. Just in case I keep second backup at my work. Both backups are protected from mechanical damage and static electricity (one is in the fireproof safe). Total cost ... | |
| Are Disc Players Dead? "I had 5 hard drives fail in 5 years."We have whole bunch of computers at work, perhaps 30, and one or two failures over 20 years. We end up replacing computers earlier (10 years or so) because they're getting outdated - that might be the reason. ... | |
| Are Disc Players Dead? Dhl93449 - Taiyo Yuden guarantees 100 years. The issue is dye. Long lasting phthalocyanine dye (Mitsui Gold, Mitsui Silver) is more expensive than cyanine dye and can last 200 years on gold but is more sensitive to light and laser power variations... | |
| Why 24/7 warm-up period on amps? "Can you tell me why it is dangerous and where it says it is not legal?"Fire Hazard. The solid copper is not soft annealed and will break after too few flexes. It is rated for in wall use only. NEC states that NM cable (Romex) should be used in pr... | |
| "Best" speakers new/used under $3,000? Mtrot - I'm sorry to hear that. They had incredible product and screw it up. When they presented HPS-938 at at audio show in 2004 it was sensational - they were sold out for many months ahead. They got Absolute Sound Editor's choice 5 years in a r... | |
| Are Disc Players Dead? "LP's are another story..." - that's true, and it has to be done right. Early digitized music was A/D converted using jittery clock. This jitter appears as noise and cannot be removed ever. The only remedy is to A/D it again if analog master still... | |
| "Best" speakers new/used under $3,000? Hyperion HPS-938 I bought 6 month old demo for $3000I'm not sure how stable this company is, but speakers are amazing. They build them in California getting parts from Taiwan. Avoid very early units since just after they started making them in 200... |