wynpalmer4
Responses from wynpalmer4
| The Absolute Sound "review" of USB cable reads suspiciously like a press releaste The arguments are dissimilar. This is not about whether a digital format produces a perfect reproduction of an analog source or otherwise.This is about whether the USB data transfer protocol is bit perfect as long as the interface is spec complian... | |
| The Absolute Sound "review" of USB cable reads suspiciously like a press releaste I'm a Design Fellow Emeritus for Analog Devices and for a number of years I designed retiming PLL and DLL loops for various interfaces etc. including USB. The 1s and zeros that you refer to are generally caused by current changes into a fixed load... | |
| Reel to reel I haven't read all of the posts in this thread, so my apologies for being redundant if I am being so, but I have to ask the question.Other than for archival purposes why on earth would you wish to record vinyl onto tape? Sure, if you want to add ... | |
| WiFi extender needed for residence? Tidal suggests 10Mb/s for 3 or more FLAC streams, and no less than 5Mb/s for a single stream. What is the data rate for your modem?I have a >4000sq ft house and I use an extender.The house is long and the cable modem and the AC1750 WIFi router ... | |
| Beware of new material claims - the case of graphene The thing about graphene is that a lot of its amazing properties are only valid when you have continuous perfect sheets of it- something that as far as I know is impossible at the moment. It has a very high electron mobility, but that works out to... | |
| are "LONDON" pressings made in the UK, inferior to the Decca pressings I was taking an electrical engineering degree at Imperial College in London during the early 1970's and I had the opportunity to work for Decca at their New Malden plant during one summer vacation, basically acting as a gopher in the pressing plan... | |
| Miyajima MADAKE experience I wouldn't send a Madake to any of them if you expect to get a cantilever made of aluminum and madake which is what miyajima-san claims is the reason for the sound. | |
| Miyajima MADAKE experience Oddly enough, my interactions with Andy, which have not been extensive, have been very pleasant and professional. Perhaps he's worked on his "bed side manner". Yes, they're not exactly the same stock, but darn close and yes, its not a shibata but ... | |
| Miyajima MADAKE experience Well, I'm not alone in having had good experiences with Needle doctor, and I used him because of recommendations that I received from other satisfied customers who had him re-tip high end MCs.Sometimes things happen, no matter who it is. | |
| Miyajima MADAKE experience Hi, I have a "retipped" 60 hours Shilabe, a Kansui with 600 hours and two Madakes, one of which cannot be officially "retipped" (it was purchased outside the US) with is c. 500 hours and a new one with 20 hours which can be "retipped".The Shilabe ... | |
| Cartridge Loading- Low output M/C Well, IC designers would generally consider an amplifier circuit that has a section with a 35dB resonance to be pathological- that is, basically a problem waiting to happen- unless, of course, the goal really is to produce an oscillator, or at lea... | |
| Cartridge Loading- Low output M/C Well, the preamp design that I've been referencing has an unweighted 20-20kHz S/N ratio of 66dB at 1v rms output, 0.25mv rms input. Assuming the 0.25mv output from the cartridge is at 5cm/sec, and the max velocity before miss-tracking is 20cm/sec ... | |
| Cartridge Loading- Low output M/C One other thing, setting the input resistance >>100 ohms can have unfortunate effects on the input stage amp if the bandwidth is high. For example, with a AD797 opamp the gain bandwidth product is 110MHz, so for a c. 2.5MHz electrical cartri... | |
| Cartridge Loading- Low output M/C No, you are interpreting what I say about the simulations quite right.It definitely seems that if you want to terminate the cartridge in a high impedance- and it hardly matters whether it's 47kohm or 1Gohm, you'd better be using a passive RIAA sta... | |
| Cartridge Loading- Low output M/C Well, if the simulations are to be believed the results are quite interesting, if hardly entirely unexpected.I'm simulating an opamp based phono stage with near perfect 20-20kHz RIAA compliance, with both active FB and passive RIAA implementations... |