atmasphere
Responses from atmasphere
| Topping A90 failure issues. Should I try a 3rd A90? But this is different. After a loud static discharge, one channel went out. Sounds a bit like an opamp failure. And really bad luck, considering how well the unit measures. | |
| Pentode Power Tubes - Ultralinear vs Triode would running in triode mode be more consistent when comparing different tube types?What about tube life? Hypothetically, if you adjusted for the same output voltage, would one mode be significantly harder on the tube than the other?The patent ... | |
| Best cost no object tube phono There are a few threads on this. As Raul points out it is very difficult to get very low noise in an all tube phono stage.Difficult but not impossible. To get low noise with tubes you do some of the same things that are done in solid state preamp-... | |
| Distortion/too much bass from turntable If this turntable has a phono preamp built-in as @millercarbon suggests then it would sound as described.Try plugging the turntable into an auxiliary input and see if it works alright then. | |
| Single driver speakers. Are they worth considering ? Charles, right, thank you. I was trying to recall Tonian Labs name.IIRC Tonian no longer carries the PHY product. He used to be the importer. Samuel Furon of Ocellia has taken over PHY. He has an office in Canada and does distribution from there.... | |
| Pentode Power Tubes - Ultralinear vs Triode FWIW if ultra-linear is set up correctly, the result should be a pentode or tetrode power tube operating with the same linearity as a triode but with about 90% of the power it could make as a pentode or tetrode. | |
| Topping A90 failure issues. Should I try a 3rd A90? @dreas We have a new D90 (non-MQA) that had some odd distortion issues when we got it. We were running it from the USB port of our shop Mac Powerbook. Apparently the settings got scrambled and we had to reset what was being sent to the USB port. ... | |
| Simple, small footprint tube preamp ? @ atmasphere, are you saying I should use you amp as a preamp?@flaxxer No. I completely misread something and thought you were talking about a desktop amp, not a preamp. Sorry about that. | |
| LAMM M1.2 - Feedback - Advice - Please - anyone heard these? Ralph keeps advertising and making misleading claims.@inna Explain yourself- where on this thread did this occur? It does not appear to be in the one prior post I made, so this statement appears to be false.The Lamm I heard was driving a set of Ap... | |
| Pentode Power Tubes - Ultralinear vs Triode Triodes are more linear and have a lower output impedance. If you can get them to make the same power and if you have two amps, one optimized for tetrodes or pentodes, and the other for triodes, the triode amp will sound better hands down. This is... | |
| Simple, small footprint tube preamp ? We started 'making' one recently. Actually I built it to be a small amp for my bedroom system. It make 5 watts per channel. I didn't want a cheap SET; I wanted something that was low distortion to full power (SETs aren't), wouldn't be making a lot... | |
| LAMM M1.2 - Feedback - Advice - Please - anyone heard these? I want / need that tube goodness in my sound but must also have that SS grip, bass control, transparency and image precision.The Lamm IMO/IME has a classic solid state sound in that its bright and has a touch of solid state harshness. If your spea... | |
| FTC may end amplifier rule! ACTION NEEDED The FTC rule leveled the playing field between amp manufacturers! This was introduced in the 1970s because there were some pretty outrageous claims being made- get an early 1970s Radio Shack catalog and look at the power claims they were making. I... | |
| Transformer coupled outputs/inputs in preamplifiers. Its possible to direct-couple preamp outputs too.Transformers need to be loaded correctly; if loaded too lightly (impedance they are driving is too high) they can express more of the inter-winding capacitance and less of the turns ratio. This can ... | |
| ST 70 best sounding version? Triode Electronics of Chicago offers a new power transformer for the ST-70 that has increased current for the rectifier circuit. This allow you to run dual 5AR4s in parallel rather than one- thus fixing the biggest single weakness of the original ... |