atmasphere
Responses from atmasphere
| High end Class D amps? @mrdecibel We managed to get our hands on an early class D amp 20 years ago. It was hard to imagine what the fuss was about- it was awful! But a lot has changed in the last 20 years and amps have gotten a lot better. But there is still room for ch... | |
| Class D Then the "switching noise output filter" can also be set higher and so eliminates most of the switching frequency noise left at the speaker terminals. Without introducing phase shifts back down into the audio band, like what happens with lower 600... | |
| How to Eliminate Hum? CDP + Pass Preamp + Amp Setup. @88man Hum is a very specific sound. You can't hear it in the midrange or tweeter. I am assuming this is what you are hearing with the following comments.Don't worry about hum if you can only hear it 6" from the speaker. That is pretty common. But... | |
| Better Amp for Cornwall IV's... If I can't hear the sound of my own natural speaking voice when the music is playing, I turn it down. I usually stay in the 90-95dB range on peaks. Loud but not TOO loud.This is probably wise. My measure of the quality of a system is that it d... | |
| Class D because of my obsession with GaN with it’s ability to have 1.5mhz switching speed the Achilles heel of Class-DThis really isn't correct. You can get vanishingly low distortion with less than half that speed; alternatively you can go a 1.5MHz using... | |
| Vfet / SIT Amplifiers I hope I was able to clear any misunderstanding.@sonetduo You did- I realized reading this that I had conflated some of your comments with that of another poster. I was addressing his comments, not yours, but with the idea that he was running the... | |
| Speaker sensitivity vs SQ These are field coil-fitted drivers, right? In that presumable case their price, though way above what needs to serve a fitting purpose here, makes a little more sense. @phusis They are TAD 1602s. Pricey, and a bit different from the EV. I forgo... | |
| Vfet / SIT Amplifiers @sonetduo I love the idea of a SIT-based preamp! The problem here is the Yamaha is far too complex. When you're dealing with purist amps and speakers (and let's be clear here- people these days that insist on crossover-less single-driver speaker t... | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. Ralph, I am not sure what you are saying, because the terms "multimeter" and "DVM" are so often conflated with one another. VTVM is a clear acronym, because you are talking about a vacuum tube voltmeter. But let's take my Fluke 87 meter.If it... | |
| Still Need Help Wall mounts generally don't work all that well. To isolate a turntable from low frequencies you need a **non-resonant** mass beneath the turntable; to which the turntable is coupled with points.You use points to couple, so as to allow vibration to... | |
| Turn Table Cable Length @smccarthy This is a really Bad Idea! Here's why:The cartridge has an inductance. The tonearm cable has a capacitance. They are in parallel; when this is so an inductance and capacitance produce an electrical resonance. If its a MM cartridge the ... | |
| Acoustat Electrostatic spearkers I sold them, it wasn't until much later that a few guys figured out how to make the OTLs stable Uh yeah- that would be me... FWIW (one of Atma-Sphere's claim to fame was the first reliable OTL). Sure- just don't exceed the phase margin of the amp... | |
| Speaker sensitivity vs SQ Guys, it's simply not true to make a statement that a higher sensitivity speaker is more costly to make. Drivers, cabinet material, R&D, spikes, connectors, wire, glues, finishes.... and of course how many points dealers get to sell themLe... | |
| Vfet / SIT Amplifiers I have not tried anything else other than the Yamaha C-1, but I probably should@sonetduo Yes. Your Yamaha is outclassed by the amplifier. You might try a tube preamp; I think you'll hear a transformation. | |
| High end Class D amps? @mrdecibel What a class D amp potentially brings to the table is the ability to be neutral in a way that most solid state amps of traditional design cannot: they can be designed to lack brightness and harshness. For this reason alone they can work... |