atmasphere
Responses from atmasphere
| Tube smell? There was probably something deposited on the glass. I have seen this with NOS tubes many times. If I were you I would pull the tubes and wash them carefully so that the glass is squeaky clean. Use only the slightest amount of dish soap. Avoid get... | |
| How am I frying all my amps? Oscillating? Help Leoturetsky, I am surprised that the term 'RF' has not arisen before now! You are describing classic RF interference issues. I doubt very much that the Goertz cable is responsible for oscillation in three different amps. A speaker cable that can c... | |
| How do autotransformers affect sound? what you're describing is simply the tendency of certain topologies to present non-linear loads to their preceding stages. If this is the case, then how is this substantially different than a tube output stage running in class A2 or AB2 whereby gr... | |
| Tube Pre-amp BAT, ARC, EAR, Sonic Frontiers Snarkonmars, what I meant was that some products have an XLR connection when the internal circuitry is single-ended. There is no advantage to the connector; the advantage lies in the topography.BTW any balanced preamp will convert a single-ended s... | |
| How do autotransformers affect sound? The turns ratio of the Mac autoformers, like the ZERO and our Z-Music autoformer before it, are all very low. The result is low distributed capacitance and lower than normal inductances, resulting in bandwidth that is likely to exceed that of the ... | |
| How do autotransformers affect sound? Its a fact that when you ask a transistor amp to make more current (drive a lower impedance) there is an associated degradation that has to do with a capacitance multiplication that is occurring within the output devices themselves. This causes th... | |
| Tube Pre-amp BAT, ARC, EAR, Sonic Frontiers What is the advantage of fully balanced preamp then?Balanced (hopefully differential as well) circuits have the advantage of increased power supply noise rejection and often a considerable ability to reject hum when directly subjected to hum field... | |
| Which amps have 2 sets binding posts per channel the Atma-Sphere MA-3... | |
| Using Theremin near tube equipment::any danger? No worries- tube equipment will be fine with it. Have fun!! | |
| Balanced vs. unbalanced If you have a differential input with any kind of decent Common Mode Rejection Ratio, the input transformer is really just a formality, serving nicely to limit RF input, which can wreck havoc on class D systems. In most solid state and vacuum-tube... | |
| Noise upon pre-amp tube replacement Did you have the amplifier on while you were replacing the tubes in the preamp? The thump could have been the preamp warming up, if so then there are no worries- just make sure you turn the preamp on before the power amp(s). | |
| Tube Pre-amp BAT, ARC, EAR, Sonic Frontiers Snarkonmars, I don't think SF ever made a balanced preamp, although they have the connections. At least I say that in the context of being fully balanced throughout, like our preamps are. | |
| Silky and soft highs: product of coloration? Dave, that's pretty much what we found, but it was very helpful too! | |
| TVC preamps: good or bad? Dgarretson, I agree, it seems that TVCs have a number of advantages over straight passives. One of them is low output impedance, essential for interconnect control.Kurt's approach optimizes the TVC approach, but at the price of his own admission, ... | |
| Silky and soft highs: product of coloration? One thing that is tricky about these audio boards and about high end audio is the matter of degree of experience.For example, the 'man on the street' often has **no idea** what is possible with high end audio. It is one of the things that, if the ... |