atmasphere
Responses from atmasphere
| Phonostage/preamp recommendations. Parasound JC3 Jr.? 2. The MC section of the pre amp has 50db gain or 60db. I'm having trouble finding a balance. Recommendation from dynavector is 50db with 1000h ohmz load. So that's where I started. It seemed fine. And playing with the knob up or down didn't im... | |
| Installed bulk foil resistors in phono amp It won’t attenuate the signal at all. Its not a matter of input resistance as it is input capacitance. This is also known as ’Miller effect’. The input stopping resistor does two things- it attenuates RFI by acting as a simple high frequency filte... | |
| Does it pay to upgrade tubes in power supply of preamp?? I would expect the 6V6 and 6SL7 to have more effect.The 6V6 is the pass regulator tube. The 6SL7 is the voltage feedback tube and controls the 6V6. So you can see that both would have a greater effect than the rectifier, which is upstream from bot... | |
| Cartridge loading Ralph, how does cartridge impedance affect all of this? I assume on a good phono amp not at all. If a higher load increases the motor's stiffness why wouldn't a cartridge track better at lower loads?When one **increases** the load, the actual lo... | |
| Phonostage/preamp recommendations. Parasound JC3 Jr.? Example I may or may not want an MM cart in the future or a different MC and I would want to buy something now that can accommodate a fairly large variety of options vs something that’s more specific to one type of setup. Buy once cry once if ... | |
| Installed bulk foil resistors in phono amp Yes, I've heard good things about that tube.A 10K grid stop resistor will give you considerably more RFI protection. | |
| Cartridge loading I run my Benz Wood SL "unloaded" at 47K on my Pass XP15. It sounds the most open, with airier highs, but admittedly I'd be hard pressed to tell the difference between 47K and 1000 ohms, maybe even 500 ohms. Seems the Pass XP15 just isn't that... | |
| Installed bulk foil resistors in phono amp Good. What's the input tube? | |
| Audio Kinesis Swarm Subwoofer Awarded 2019 Golden Ear Award by Robert E. Greene @luisma31 The bottom octave is generally considered to be 20Hz to 40Hz, the second octave 40-80Hz and so on. 80Hz has a bit of a special meaning to subwoofers and the human ear because it is at about this frequency that bass appears omnidirection... | |
| At what price point do I run into diminishing returns on an MC Cartridge? The ability of the tone arm to properly track the cartridge is far more important than what cartridge you have! If anything this is the Achilles heel of LP playback as most people don't have their analog set up properly. | |
| Cartridge loading The Zu Denon is very much a "salt to taste" kind of cartridge when it comes to loading. When I used one it could indeed sound quite different when using 100/200/300/500/1000 ohms. And Zu will tell you there is no wrong answer here, just use w... | |
| Time to buy a class D amp? We're still working with prototypes. They have had 100 watts and double power into 4 ohms. Since last spring, they have had GaNFET output sections. We compare them directly against our tube OTLs as a reference. Mostly we've been sorting out layout... | |
| Installed bulk foil resistors in phono amp Any stopping resistors at the input of that preamp? | |
| Cartridge loading @stereo5 47K is the standard for phono cartridge loading. I am very happy at 1K ohms, I was just kind of wondering why.I explained why in my prior post. With a higher impedance load on the cartridge, the cantilever is more able to trace high frequ... | |
| Cartridge loading Cartridge loading is for the benefit of the phono section, not the cartridge!It prevents the inductance of the cartridge and the capacitance of the tone arm interconnect cable from creating a resonant circuit, by detuning it. The resonant circuit ... |