atmasphere
Responses from atmasphere
| Do ClassDAudio Amps Have Proper Decay Of Notes? NAD is apparently using the hybrid in the D 3020 but the Direct Digital approach in the D 7050.Despite the advertising on their website, their 'Direct Digital' approach has a considerable amount of analog circuitry- a lot has to do with definition... | |
| Have Passive Preamps Finally Come of Age? Well, it seems to me the gain issue ( voltage ) has just be proven by kosst's last post, taken from Nelson Pass himself. Take care of the impedance issue, using buffers ( 0 gain ) and the source can drive most power amps quite well. Enjoy ! MrD... | |
| Ohm load for SET Amps Halving the impedance doubles the current (amps) required. Tube amps are current "challenged" compared to SS amps.Therefore the higher the speaker impedance the easier it is for a tube amp to provide enough current. The 4 ohm tap allows the amp... | |
| Technics Turntables...really??? your criticism of Reed bearing can apply to the Kuzma 4 Point tonearm for the same reason? @chakster Yes. | |
| Ohm load for SET Amps A 16 ohm tap means that ALL of the OPT's winding (on the output side) is in use. An 8 ohm tap means that 1/2 of the OPT's winding is in use. A 4 ohm tap means that 1/4 of the OPT's winding is in use. This directly affects damping (control) of t... | |
| Ohm load for SET Amps Output transformers tend to become less efficient into lower impedance loads. This means that it will absorb a slight amount of power, but the other issue that is often more important is that bandwidth can suffer- by as much as an octave off the b... | |
| Technics Turntables...really??? @chakster The Reed looks nice but its unlikely to have bearings as hard as those in the Triplanar, who has a security clearance to obtain the bearings they use (the bearing is the hardest metal bearing made anywhere; and Triplanar got investigated... | |
| Do ClassDAudio Amps Have Proper Decay Of Notes? ^^ Yes, that was certainly not obvious since buying a class D audio kit is pretty easy to do. It seems that a company name like that would cause a lot of confusion in the marketplace. It probably can't be trademarked. | |
| Class D Audio I wonder if that’s the same Tom that worked for me about 30 years ago. He told me about his father, who taught airframe and powerplant for the AirForce in WW2. His father had a saying that he always put on the chalkboard at the beginning of each s... | |
| Have Passive Preamps Finally Come of Age? And Al, a source that gives out 2v is always going to give it out, even if you shunt half of it to ground because you don’t need it, because you have more gain to make it back up in the active preamp. So the distortion from the source "whatever it... | |
| Help me pick a phono, pre and cart Hm. Sounds like raul is a bu$ine$$man looking to sell his preamp, but actually prefers digital (I didn't make that up):https://forum.audiogon.com/discussions/phono-preamps-with-ballsHere's an excerpt from that thread:A CD with a top DAC ( 32bits/3... | |
| Do ClassDAudio Amps Have Proper Decay Of Notes? @auxinput If that's really the case, the problem is that the switching frequency is too low because its only at the frequencies of the digital codices. And I can tell you from having designed Class D amps that no DAC out there can drive the outp... | |
| Backert Labs Rhumba preamp So, I am not sure the difference between "Balanced" Vs "true Balanced" that Ralph often refers to.'True balanced' is not a thing I say so much as I harp about supporting the balanced standard. The circuit does not have to be balanced to do that p... | |
| Have Passive Preamps Finally Come of Age? Hmm. George, I'm not worried about it- I simply acknowledged that you were correct yet you're still going off. If anyone seems in damage control mode, its you right now. Just calm down. You'd have to imagine that I'm well aware of what our amps ca... | |
| Lenco Turntable L75 question There are upgrade kits that are worthwhile. The plinth of the original machine is a weak point, as well as the arm and platter pad.It has a robust drive, which is important with any turntable. That is the main reason the 'table has a following, ju... |