atmasphere
Responses from atmasphere
| Ditching Class A Amps due to Heat - Sort of a Poll If they are so worried about climate change why were we forced to use old technology like the combustion engine for over a 100 years. @phd For the answer to that, read Internal Combustion, by Edwin Black. Its fascinating reading! | |
| DC entering my amp? @itball Pay attention to what @gs5556 says- he is giving you really good advice for getting to the bottom of this. I would add that if the preamp isn't connected and the DC Offset at the speaker terminals goes up, then the amp is at fault. | |
| Peachtree GaN 1 Beta Sounds like this would be a limiting factor going into the GAN 1 which can accept up to 192khz rates. Am I missing something? Yes. Digital audio uses digital 'words' whose resolving power is determined by the number of bits in the word. IOW the... | |
| When were the best tube amps made? Would be really interested to hear from an engineer and tube amp builder today who has seen and heard many generations of amps. @earthbound For the record, you did if you read this thread. What kind of power supply capacitors did Western Elec... | |
| DC entering my amp? Once every week or two that function gets tripped, not necessarily while playing music. I use good quality cables and the connections are tight. I have a tube preamp ahead of the SPL so thinking that could be it. @itball The amp could also have... | |
| Atma-Sphere Class D… Amazing Good to know this Ralph. But it is not an option when you have a tube preamp - right? @milpai That probably depends on the tube preamp. I don't leave any of my equipment on all the time, except my DAC. | |
| Atma-Sphere Class D… Amazing We have several reports now that leaving the amps on helps them sound better. | |
| When were the best tube amps made? The best parts for making tube amps exist now, not 50-80 years ago. There are some pretty cool designs out there although its all too common for newbies to rehash 1950s designs. I don't subscribe to the idea that older transformers were better. I... | |
| Hum on Tube Amp - Can't find source Sometimes the simplest answer is the best one. Yes- if more people understood Occam's Razor the world would be a lot calmer place to live. | |
| Hum on Tube Amp - Can't find source @ervikingo 12AX7s trade high impedance for more gain so could be sensitive to a variety of variables. So going to 12AT7s may well solve the issue. I've also found that the brand of tube can sometimes cause hum. For example a phono section I was ... | |
| Hum on Tube Amp - Can't find source @ervikingo I had assumed that since your amps were 'tested at the factory' that they had a clean bill of health. But the first rule of troubleshooting is 'don't make assumptions'. Occam's Razor is always trying to get me to look at the simpler ex... | |
| Ditching Class A Amps due to Heat - Sort of a Poll YOU CANNOT UP THE BIAS QUICK ENOUGH TO CATCH THE MOMENT. I have read the patent and it does not answer this. It cannot. I asked a senior engineer working on my KRS200s how it solves this issue and he could not answer. @clearthink You can easil... | |
| Okay to use RCA adapter on a fully balanced amp? @orchardaudio that will be tricky for a lot of tube preamps. Our preamps can drive that no worries, but our preamps are balanced so its moot... | |
| Ditching Class A Amps due to Heat - Sort of a Poll in the sense that it does what it’s designed to do, prevent notch distortion (the basic reason we want Class A) while reducing power consumption. @axo1989 Just so you know, any class D amp that uses a choke-filtered output (which is nearly al... | |
| Okay to use RCA adapter on a fully balanced amp? @orchardaudio Most preamps can do 5Volts easily as long as the input impedance of the amp isn't an issue! My recommendation is thus to simply try it. |