kijanki
Responses from kijanki
| Connecting laptop to dac via usb- gear on or off? USB standard allows for hot-swapping. There are 4 wires in the USB cable/connector - 2 for power (+5V, GND) and 2 for differential signal (D+, D-). If your DAC is self powered than it will be better to use 2 wire USB cable with signal wires only... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? Perhaps it works, but I would think that it can do more harm than good in comparison to plain grounded shield. High frequency noise currents induced in the signal wire flows on the surface (skin effect) - shield to ground. I'm not sure replacing... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? roberttdid, Sorry I read it wrong and I understand argument about shorted turn, but transformer works both directions. Any closed loop will pick-up ambient electrical noise. Induced electric charge will flow in this loop thru/along the shield pro... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? roberttdid, Of course. I posted only to state that shield, IMHO, plays important role in defense against electrical noise (when connected properly). I also strongly agree with you that shorting open ends of the shield with wire creates large loo... | |
| 100W, 200W, or 300W? Power specification is very vague. Average music power delivered to speakers (dissipated heat) is very low, unless one listens to sinewaves (then it is 50%). When music sounds about half as loud as the music peak it is 10% of the peak power, not... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? Twisting a pair of wires works great against capacitive or electromagnetic pickup, exposing both wires evenly to electric or magnetic field. That way induced noise currents are exactly even and cancel. It works fine as long as twist is even and ... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? luisma31, sorry, I got confused with initial post about TT problems. You keep saying "unplugged from pre side" but you probably mean that shield was disconnected, otherwise what are you listening to if nothing is connected to pre? I suspect that... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? luisma31, Unplugging connector? You probably mean - disconnecting shield? If you had no hum with shield connected at both ends, then why to change it? I would guess that disconnecting shield at the Phono side only left TT ungrounded with floati... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? luisma31, It might be true, but I've never heard of hum caused by high capacitance of the cable. I've heard of output oscillations and frequency roll-offs, but not hum. | |
| amp pre amp matching joes44, In the manual they stated that >60k/<100pF is for optimal results, but >20k/<1000pF is minimum requirement. I looked at the schematic and it appears that in addition to Mosfet output stage there is 5uF output capacitor. This ... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? luisma31, If it is not grounded at either end, then capacitance to what? To electrically floating object? | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? Almost none. I ran unshielded tonearm cable in my home system for some years. You could crank up the volume and no hum or buzz from the cable, even if grasping it or moving it around. You do still have to ground the tone arm and it works best if t... | |
| Beryllium Tweets @yyzsantabarbara On their website they call it Zylon. It is proprietary composite material, so it might be hard to find out what it is. Engineering, most likely, will go that route, designing new materials with extreme stiffness at very low ma... | |
| Why do most phono preamps lack XLR input even thought cartridges are naturally balanced? Ralph, very interesting. As roberttdid said about differential filter "it seem obvious", but it escaped me completely, being stuck on "matching". | |
| Beryllium Tweets Steve Mowry says in the article "The Whole Truth About Beryllium Diaphragms: -"For a given geometry the first bending (break-up) frequency is proportional to the material Speed Of Sound, where the speed of sound within a material is defined as the... |