atmasphere
Responses from atmasphere
| What Class D amps will drive a 2 ohm load So what am I not being told?:) Apparently you're *not* being told that the amp won't work...And FWIW, if the amplifier has a low enough output impedance, it will act as a voltage source even with a 2 ohm load. It **does not** have to double power... | |
| Impact of phase inversion by preamp I meant that I marked polarity on the jacket, not that the LP itself was marked. OK- that makes more sense. I forget most of the details now, except some discs were inverted polarity relative to others, verified with an oscilloscope. How did you d... | |
| What Class D amps will drive a 2 ohm load I've mentioned before, we're not using anyone's modules.It seems that what you aren't getting is that comparitors (a kind of chip or circuit used in many class D amps) can be unstable if used with high input impedances. To prevent oscillation, low... | |
| Impact of phase inversion by preamp For a long time, LPs were marked as to preferred polarity. They encompassed the full gamut of recorded music from Pop to Opera.Could you name one? I have a lot of titles in my collection and don't recall ever seeing that. The manual for my lp cutt... | |
| What Class D amps will drive a 2 ohm load Here is the comments from a manufacturer of these Purifi’s Class-D amps when I queried him on the unnecessary low 2.2k input impedance. I think it could be because of the use of bjt input stage instead of fet, I’ve yet to suss that one out. Ye... | |
| speaker impeadance question An amplifier having "constant power" aka "constant wattage" characteristics will, for a given input voltage, tend to deliver less output voltage at frequencies for which speaker impedance is low, and more output voltage at frequencies for which... | |
| Impact of phase inversion by preamp Nonsense.I polarity tested and corrected all the microphones.I verified all the lines and electronics.I made the recordings.Some recordings were M-S, X-Y, spaced pair and some multi-mic.Synthesizers are easily polarity checked with a sawtooth wave... | |
| What Class D amps will drive a 2 ohm load WHY!! they keep making low input impedance amps these days is beyond me, go back to 48k (the once recognized industry standard) or even 100k like it used to be with tubes, makes for a whole better range of preamps ,tubes SS or passive able to d... | |
| Aesthetix + AtmaSphere You better watch out now Ralph. I got castrated in an earlier post for saying that cartridges were intrinsically balanced.If that happens again, drop me a link. | |
| speaker impeadance question I don't really like to use the phrase "constant voltage" here. I think that the term "voltage source." is more clear. In the industry the two are pretty well interchangeable.Compare how the three WELL REGARDED amps react to the impedance curve of ... | |
| Impact of phase inversion by preamp Then I would say that the speakers may not be well aligned. The point of the mentioned test was to determine the audibility of polarity. We used polarity correct recordings of acoustic instruments, 80's pop with all live players recorded with p... | |
| Aesthetix + AtmaSphere fyi...something to consider; the Mp1 can only be run in balanced configuration No Expections! This statement isn't entirely true. We can outfit the MP-1 and MP-3 with additional RCA connections (both already have two unbalanced line level inputs).... | |
| What Class D amps will drive a 2 ohm load All we have here are a few manufacturers spruiking their new or yet to be released Class-D amps without any shame, saying they "can handle" the 2ohm load, making out they can drive this speaker to it’s best in the bass. Without presenting any m... | |
| My 1st Tube Equipment Experience Couldn't tell you as I've not heard them but I can tell you I prefer tubes especially in preamps. You need them to get things right at the front end of the system; no amount of the best amps and speakers can bring back missing elements in the sign... | |
| What Class D amps will drive a 2 ohm load Nothings been put to rest, let’s see the independant test or even his own, that show the rms wattage doubling just before clipping (same distortion) with all three 8, 4, and 2ohm loads, then I’ll eat my words, and congratulate you on doing some... |