atmasphere
Responses from atmasphere
| 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... | |
| balanced preamp Kijanki, we don't have any output transformers so we don't have that expense anyway... Is it me or is 85 db a poor CMRR figure?Like I said a lot depends on an effective CCS circuit. I have to say I am quite surprised to see how poor they are in mo... | |
| DC issues using a Krell KSA 150 w/ tubed preamp? Polyglot, if you encountered such a thing then the preamp is in need of service. No preamp, tube or solid state, will have any DC at its output. The simple fact is that as a designer you can't count on the amp being used to have a coupling cap at ... | |
| I need an all Tube Amp. Unless you have a tiny room you won't find much in the way of tube amps that will work with that speaker.If you do the math, your 86 db number changes to 83 when you take into account the speaker is 4 ohms. This becomes even less if the speaker is... | |
| balanced preamp Kijanki, you are correct about the distortion product. However the less distortion is made the better. If you do the design right, the primary harmonic to show up will be the 3rd. If you don't, you'll have a mess on your hands :)I don't find in pr... | |
| Preamps with balanced ins/outs and remote Seadogs1, if the preamp is internally balanced, you should be able to get an output from the preamp by driving pin 2 and pin 1, and also by driving *pin 3* and pin 1 (pin 1 being ground). If it is unresponsive on one of those inputs, say pin 3 for... | |
| Triode mode vs pento mode Hi Trelja, seems to me Dynaco was one of the companies that got around the patent by moving the tap.Dover, The problem with going to triode mode on an amplifier like the Dyna MkIII is that the load impedance has to be set up differently- essential... | |
| balanced preamp Going internally balanced is a good way to reduce distortion of the circuit. This is true whether the preamp is tube or solid state. If the balanced operation is done properly, the interconnect cables cease to be a part of the sound of the system,... | |
| Non-feedback amplification topology and frequency Mapman, I'm pretty sure that part of the reason this is so has to do with that article I link all the time:http://www.atma-sphere.com/Resources/Paradigms_in_Amplifier_Design.phpIf you happen to compare the two amps on a speaker that is in one camp... | |
| Negative feedback Amp=more faithful reproduction? Correct! IMO the damping thing is way over-blown.I found that article:http://paulspeltz.com/tomcik/index.html | |
| Triode mode vs pento mode Al, I wonder if you might be aware of the patent that was originally issued on the ultralinear technique?To get around it, a good number of companies simply moved the tap. However, the original patent shows that if the tap is correctly placed, you... |