atmasphere
Responses from atmasphere
| How good's your hearing a common Class-D complaint, as they have output filters to rid the switching noise that create phase shifts down to 3-5khz. Probably true of a subwoofer amp, but not any that are meant to run full range. Typical filters on a class D are 12db; if ... | |
| The Future of Audio Amplification It would, since feedback is how the switching is controlled, without feedback, there can be no switching. There are three main types of encoding. One is 'self oscillating' which requires feedback and the feedback sets the switching frequency. So ... | |
| The Future of Audio Amplification Bit late to the party Merrill already did it using the GaN transistors, I believe the SE-R1 does also.Yes, there are a number of zero feedback class D amps at this point. | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. As long as the MOSFETS stay hard on between 20 - 20khz it will be fine :-)Yup- if they are On, then the frequency is almost irrelevant. | |
| Nottingham Spacedeck vs Rega Planar 8 vs Technics SL1200G I take it you were not able to do distortion tests also?The 400Hz peak seems to suggest that the platter pad is reflecting energy around that frequency. But on one test I would be hesitant to call it good- can you test other platter pads? | |
| Nottingham Spacedeck vs Rega Planar 8 vs Technics SL1200G Mat doesn’t have to be the same hardness as vinyl.Many people don't understand that the mat can have a big effect on the sound of the turntable.The function of the mat is two-fold: first to damp the LP, and second to damp the platter. Both are imp... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. The MOSFETs will be hard ON all the time- you don't have to worry about bandwidth, as the resulting circuit will be good from DC to well past 100KHz. They have some capacitance associated, but that will be negligible unless your amp is really high... | |
| DC Offset Blocker/Killer - where to buy in the USA DC blocking circuits are expensive to do right, and are very rarely needed. That's why they aren't included in almost any linear power supply I know of. You can find them on ebay for less than $100.00. We build them into all our amps. | |
| The Future of Audio Amplification Ralph, you are more capable than anyone on this thread to explain why class D is the future from a technical standpoint. Lay it on us. Also, have you (as George is implying) had a religious conversion to the world of class D to the point of i... | |
| DC Offset Blocker/Killer - where to buy in the USA Not all transformers will respond the same. +1My house is 5 years old, everything is brand new, the whole neighborhood is about 8-9 years old, my electrician says that I have perfect power coming to the house and everything looks fine.DC on the ... | |
| why a high end phono preamp? With the best amps and speakers, you can't make up for a loss upstream. A good phono section is mandatory for good vinyl playback! | |
| The Future of Audio Amplification So that makes the scan frequency in this example only 200KHz(!), Wrong again when have you seen an amp that can do 200khz, have a slewing audio frequency square wave like this, the sides are collapsing in like the leaning tower of pizzaI think ... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. Has anyone used one of these before:https://holtonprecisionaudio.com/collections/diy-audio-products/products/audio-solid-state-relay-hpa...Not used it but I see no reason why it shouldn't work just fine. | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. SSR is unfamiliar to me, but from your post, did you mean 'SCR'? The latter were used in crowbar circuits for speaker protection... | |
| The Future of Audio Amplification Wrong!!! look at it and think again. It’s Stereophiles, there’s your hint, they’ve NEVER EVER given a Class-D 20khz square wave, as it would look unrecognizable as a square wave. https://www.stereophile.com/images/1212AM1fig03.jpgYou are corre... |