atmasphere
Responses from atmasphere
| Easy biasing Tube amps Atma-Sphere is part auto-bias and part manual. IOW the bias is automatic but you still use the onboard meter to set the DC Offset (there is a single DC Offset control because the output of the Atma-Sphere amps is direct-coupled). Drift is low, so ... | |
| Listening fatigue Another thing that is well-known for causing listener fatigue is odd-ordered harmonics in trace amounts, something that is common to most transistor gear.This will get more pronounced as volume is increased.The reason is that the ear uses odd orde... | |
| 45 Type Push/Pull Phil, if you can't see it on the scope, that does not always mean it does not exist. But it does mean that its pretty slight- if you have a really high bandwidth scope (200MHz and higher) that stuff usually shows up pretty well if its there.Howeve... | |
| 45 Type Push/Pull Thanks Phil for your reasoned response. I am basing my comments on the simple observation of the amps themselves on the bench. I've seen crossover and notch distortion in transistor amps (which in some cases it was possible to correct by adjusting... | |
| D-Sonic peak current output compared to other At the end is the music that matters. Your amps sound great, so do Parasound amps and many other amps out there with totally different designs.Isanchez, this quote above really says it all- and also points to the fact that current is in fact not w... | |
| 45 Type Push/Pull Phil, even if you run class AB1, you still don't run the risk of any crossover artifact, since at lower power levels where the crossover artifact might occur, the tubes are in the A region.What I have found is this is more a problem relating to so... | |
| Triode mode vs pento mode It depends entirely on how well the output transformer is designed. However if you caught some of my comments earlier about the actual correct tap point of the screen taps, if the transformer is really set up correctly there will be no need for tr... | |
| D-Sonic peak current output compared to other There are a number of things in the excerpt above that are patently false (despite the source) but are indeed widely-held opinion in the form of myth.For example the ability to play deep effortless bass has nothing at all to do with the ability of... | |
| Tube Amplifier for Thiel Unjc, how big is your room? Is it lively or more dead? That will say a lot about what you can get away with. | |
| Triode mode vs pento mode Johnsonwu, only if they are properly designed for it. Pentode mode operates at a higher impedance than triode, so the transformer needs to be designed to allow that. IOW you can't just convert an amplifier by rewiring the output tubes in triode mode. | |
| 45 Type Push/Pull subtle push-pull crossover notch grungeThis is something that should not happen with a DHT p-p design. Crossover or notch distortion are artifacts of transistors and designs that are not class A, unless there is a serious design defect.I have a pa... | |
| D-Sonic peak current output compared to other Not sure I buy the explanation in the video. It needs elaboration to know what he is trying to say. | |
| D-Sonic peak current output compared to other Let's do the math!We have three values mentioned so far. 30A, 45A and 65Amps.Exactly what does that mean? I suspect it is not having anything to do with the power output of the amp. Let's see if I am correct.The power formula is P=Isquared x R. P ... | |
| balanced preamp OK Kijanki, I will take the other comments as a red herring then.From your comments it seems to me that you are used to working with balanced gear that uses the ground connection. The ground is supposed to be ignored. But a lot of balanced gear us... | |
| balanced preamp Not only cost of tubes but they also require more power. Where are you going with that?? That does not have anything to do with CMRR... and is not accurate. The tubes we use are not expensive, and usually cost less than a set of tubes for a transf... |