atmasphere
Responses from atmasphere
| What Class D amps will drive a 2 ohm load Can I make the same comment that higher impedance is receptive to noise, in the same context that lower impedance adds distortion.Probably not. The impedance of a 16 ohm loudspeaker will not affect noise floor at all. But many 16 ohm loudspeakers... | |
| What is wrong here.. on Audiogon? Your question was easily answered with concrete examples. The other thread you mentioned wasn't. So it got more response. | |
| Stylus-Drag..Fact or Fiction? Anyway, who do you send the masters to for pressing?@mijostyn I've found that if the mastering is done correctly most pressing plants can do a pretty good job. But QRP stands out as the best (their pressings have noise floors that easily rival Red... | |
| What Class D amps will drive a 2 ohm load It's also interesting that Stereophile didn't bother reporting specified power rating at 2ohms, but did mention THD rises into 2ohms at higher frequencies.This is true of all amplifiers; if high fidelity reproduction is your goal, lower impedanc... | |
| Time to buy a class D amp? Like some one said here they have one that goes to 1mhz in bandwidth!! this one will certainly over time cook or quickly the tweeters voice coils. I even leave them on most of the time as recommended. I don't think this is a good practice, as y... | |
| Exploring Preamp options for the Pass XA25 OK- I had to look that one up. With a 47K input impedance a large number of single-ended tube preamps will drive that with no worries. You already have some excellent suggestions in this thread. Do you need a phono section? | |
| Time to buy a class D amp? Read again from Texas Instruments, far more authoritative than you Ralph, and this is still with the output filter in place, but with it set too high, without it and you have a tweeter meltdown. From Texas Instruments:On output filters of Clas... | |
| Time to buy a class D amp? From Texas Instruments on output filters of Class-D amps that are set too high corner frequency. "A concern with the switching waveform being dissipated in the speaker is that it may cause damage to the speaker" This is what happened to my mates... | |
| Time to buy a class D amp? Go near one with a portable am radio tuned off station around 600khz (or whatever your switching frequency is) and see what you get out of the radio. If you look at their output on a oscilloscope they are more than just noisy as heck! And that ... | |
| Crackling and hiss - Preamp tubes not seated right? @jayctoy I don't see why not! | |
| Amps with meters ... We've had meters on our amps for the last 43 years. They were initially there to set up the power tubes (bias **and** DC Offset, since our amps have a direct-coupled vacuum tube output). This also allowed the user to test the individual tubes on t... | |
| Exploring Preamp options for the Pass XA25 The Pass Labs are balanced. If you really want to take advantage of what it does (its distortion will be lower if provided with a balanced source), a balanced preamp is the better choice. What sort of budget do you have? | |
| Need to adjust the speed every time I turn on turntable 15 years old and only 200 hours.... the filter caps in the power supply could easily be defective as a result (they last longer when charged). It may be that the regulators are unable to regulate the DC voltage as a result. | |
| Mag Lev Turntable. Your Thoughts? The coupling between the platter surface and the base of the tone arm must be as rigid and dead as possible. To this end, the bearing can have no slop (but at the same time can't make noise and has to be free) and the plinth be as rigid and dead a... | |
| Stylus-Drag..Fact or Fiction? Ralph, What are you doing with a lathe? Atma-Sphere going to start making records? @mikelavigne We've been mastering LPs for about 5-6 years. Most of the projects we've done are local. It took some time to refurbish the machine and sort out how t... |