kijanki
Responses from kijanki
| balanced preamp Atmasphere, If preamps are balanced and differential then at the spot where summing takes place (input of power amp or speakers) common mode interference will appear as signal. For instance, if one leg has gain of 30 and the other gain of 30.3 tha... | |
| balanced preamp Atmasphere, Fully balanced configuration reduces only even harmonics while leaving odd harmonics intact - I'm not sure if it sounds better. In addition gains have to be perfectly matched or common mode interference would get converted to normal mo... | |
| Diamond drivers 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... | |
| Negative feedback Amp=more faithful reproduction? Atmasphere, It make little sense to seek very high DF for better damping (assuming that speaker needs it) when inductor in series with the woofer has most likely resistance of 0.1 ohm limiting DF to 80 even with perfect amplifier. | |
| Negative feedback Amp=more faithful reproduction? Mapman, Woofers have only one invention - lack of suspension (spiderweb) compensated by large diameter voice coil mounted to flat disc in place of dustcap. It makes membranes lighter, faster and stiffer. Midrange (6.5") uses, in addition ferroflui... | |
| Negative feedback Amp=more faithful reproduction? Mapman, That's the first thing I hated - The looks of two small coffins in glossy black (I hate glossy black). Overtime they grew-up on me and now I love them. (It is a little bit like Eiffel Tower or glass Pyramid if front of the Louvre Museum, o... | |
| Negative feedback Amp=more faithful reproduction? Sorry for double post | |
| Negative feedback Amp=more faithful reproduction? Edwyun, this particular design (Icepower) uses Nielsen Karsten multiple feedback. One feedback comes from modulator while the other is from the speaker output. Class D is relatively linear to start with, while output impedance is inherently low he... | |
| Negative feedback Amp=more faithful reproduction? Edwyun, this particular design (Icepower) uses Nielsen Karsten multiple feedback. One feedback comes from modulator while the other is from the speaker output. Class D is relatively linear to start with, while output impedance is inherently low he... | |
| Negative feedback Amp=more faithful reproduction? Dracule1, What I'm getting from this is that some amount of imperfection can sound to many people more natural. Difference between natural, pleasing and faithful is fluid. Article was very interesting and thank you for posting it. I would only dis... | |
| Negative feedback Amp=more faithful reproduction? Edwyun, Yes, we have to realize that when they talk about zero feedback they mean global feedback. Amplifier can have many local feedbacks and they might still call it ZNFB. Why? Because ZNFB became catch phrase and sells amplifiers.You stated the... | |
| Negative feedback Amp=more faithful reproduction? Mapman, the question here is if NFB makes reproduction MORE faithful. Some answered that there is no faithful reproduction, which doesn't answer this question, while others stated they prefer sound of ZNFB which doesn't answer this question either... | |
| Triode mode vs pento mode Atmasphere, there might be some issue since triodes have lower internal anode resistance leading to higher damping factor and perhaps perception of less bass.Pentodes are less sensitive to supply voltage variations meaning that large change in sup... | |
| Negative feedback Amp=more faithful reproduction? Many people like sound with some distortion that makes it more alive (distorted guitar vs clean guitar). My Benchmark DAC1 sounded too clean at first but it doesn't anymore (learned to listen). Many accused DAC1 of sounding sterile. When they comp... | |
| Negative feedback Amp=more faithful reproduction? Dracule1, I glanced over article and it seems to cover pretty much everything. I will read it in detail.Stereophile also conducted experiment with adjustable feedback amplifier and they liked sound at minimum feedback. It doesn't mean that feedbac... |