atmasphere
Responses from atmasphere
| Bass leaves after amp warms up? The complaint is one I have come to associate with MOSFET output transistors. A small fan can indeed help. The amp may not run all that hot but MOSFETs have a quality where the warmer they get, the more they limit current. So you want to keep them... | |
| Listener fatigue: what does it really mean? Listener fatigue is nearly always a consequence of distortion.Two distortion sources are IM distortion and odd-ordered harmonic distortion. Both are known to be irritating to the human ear- and this has been known since the early 1950s. What is le... | |
| Using autotransformers The term 'autotransformer' is a new one on me, and I have been a technician and engineer since 1974. I suspect that you mean something else. Which of the two below seem like what you are looking for?An autoformer has no ability to regulate voltage... | |
| Stand out phono stages I prefer a phono section that is balanced so I don't have to worry about colorations from the phono cable. Phono cartridges are a balanced source so its nice for the preamp to accept the signal in the balanced domain. The balanced line system was ... | |
| Interconnects Roller Coaster Ride I would expect that line voltage variation would affect your preamp, amps and speakers.It might be a good idea to get a voltmeter in the same room with you. If the system is sounding good, make a note of the line voltage. Do the same for when it i... | |
| A good amp for Tannoy speakers The speaker is very tube-friendly but it is also critical of the amp driving it. In addition I found it sensitive to the speaker cables! - literally meaning that I got bass with some cables and not others. Keep the cables under 5 feet in length an... | |
| D-Sonic peak current output compared to other Simon, I think we are on the same page- IMO, distortion is pretty much the name of the game!It turns out that the ear hears distortion as tonality. This is why SETs sound so lush, because of that 2nd harmonic. Its been my experience that if the sy... | |
| D-Sonic peak current output compared to other Simon, I noted the last comment in that article. You might be interested to know that there have been studies of how the brain reacts to music- and where that music is processed.The studies were conducted by Dr. Herbert Melcher, a neuro-chemical s... | |
| Phono interconnect under $500 used Hello Halcro, not exactly. What I am saying is that the interconnect cable between the arm and the preamp will thus cease to impose a coloration. Some might interpret that to always be 'better/purer' if they are indeed in search of neutrality with... | |
| Electrolytic capacitors inferior? Sounds like the Oppo review itself was a troll. Electrolytics can have the same audio performance as film caps if they are set up correctly (there are plenty of examples in the last 40 years where they are not, which is why they have a bad reputat... | |
| Phono interconnect under $500 used Yes, or at least a balanced input- any SUT can provide that. | |
| Phono interconnect under $500 used Hi Pani, if that is the case then your are subject to issues of cable construction as the circuit is putting signal current through the shield. This simple fact causes many audiophiles to go on the hunt for the holy grail of audio cables. That is ... | |
| Sensitivity Unsound, I don't think you are looking at the physics, just the marketing.Take a look at the distortion curve of any amplifier driving 4 ohms and compare to the 8 ohm distortion curve. Then factor in the fact that the ear uses odd ordered harmonic... | |
| Identify this hum, please Ah. The hum was caused by noise pickup in your cables, and the impedance of the passive setup was so high it could not control it.A tube preamp would of course be my first suggestion. | |
| Phono interconnect under $500 used Stevecham, FWIW, in the OP the cable in question is Mogami 2549, which is a balanced cable. It is therefore not that unreasonable to assume that it is being used in that application. So I addressed the issue of balanced line operation with respect... |