atmasphere
Responses from atmasphere
| Preamp Noise with High-Efficiency Speakers Actually if a ground loop is present it will more likely manifest as a buzz. It is rare to see a ground loop only produce 60Hz! | |
| Entreq ground conditioners - what's the theory? Davehrab got it right. In order to pass safety requirements the equipment must be grounded. The problem is that if the electronics are grounded, ground loops can result, which usually results in a buzz of some sort. So if the designer is using goo... | |
| Has anyone tried a "leather" turntable mat? Sbrownnw, I do. Csontos is right. Each bit of leather that you work with is always different from the one before.We've not mentioned brain-tanning yet but that technique (which involves a lot more labor) yields a much softer and more supple material. | |
| Preamp Noise with High-Efficiency Speakers Yingtonggao, what this suggests to me is what I mentioned in my first post on this thread. It may be that the preamps you have tried so far have troubles with ground loops, but it could also be a problem in the amplifiers. Have you tried any of th... | |
| VTF, VTA, SRA, and 92 degrees - question I am sure some of you have noticed that different records seem to need a slightly different VTA. The reason for this is two-fold; first the LP is a different thickness. The second is the the cutter stylus on the cutterhead that cut the lacquer for... | |
| High Current vs high power Here is a link that might help some with this equipment matching issue: http://www.atma-sphere.com/Resources/Paradigms_in_Amplifier_Design.phpAl is correct- THD is the sort of thing that may well have a reverse correlation with listening experienc... | |
| Preamp Noise with High-Efficiency Speakers Yingtonggao, what you report is a buzz. But you did not report hiss, which says to me that the gain is not the culprit. There is some hookup (like a ground loop of a poorly shielded cable) which is allowing the buzz to manifest. | |
| High Current vs high power The Rowland 8Ti is a good example of what I was talking about.Into 4 ohms it is rated 400 watts, but the current figure states(from the website): 50 amps continuous, 100 amps peakIts pretty obvious this has nothing to do with power! 50 amps contin... | |
| Preamp Noise with High-Efficiency Speakers My comments on voodoo are just that some believe that an active preamp can actually add real musical information that the source isn't providing, this shatters me that some can believe this.You won't get any argument out of me on this! I am of the... | |
| High Current vs high power ^^ Yes, audiophiles have seen those pesky spec sheets for amplifiers for decades, but so little on them tells us what is going to sound right that you still have to do the audition. More fodder for the objectivist/subjectivist debate... | |
| Tube vs. SS Dilemma After looking at the Stereophile review, I suspect that this speaker is better being on the four ohm tap than the 8 ohm tap of many tube amps. Musicgeorge11, it is also obvious that you had some bad tubes in your equipment- refer to your comment a... | |
| Com'on...confess.......... read and weep:Vangelis 1492 soundtrackMike Oldfield Songs of Distant EarthQuad ST (on clear vinyl 500 press)Vangelis Blade Runner soundtrack (you might still be able to get this- it was recently issued on 180 gram vinyl and is the Vangelis materia... | |
| impedance question and tubes Since speakers often do not have linear impedance curves, you do often have to try other impedance taps to see which offers the best performance.'Light loading' can be good for the power tubes but can also introduce more harmonic distortion, which... | |
| High Current vs high power This is a commonly misunderstood concept in amplifiers. What is meant by 'high current'?Does it mean that the amplifier behaves as a voltage source, and so can double power as the speaker load is cut in half or does it mean something else?It means... | |
| Preamp Noise with High-Efficiency Speakers George's Lightspeed is IMO one of the best PVCs made, but- If then you don't like this, by all means colour it to your liking with a active preamp of your choice, this is why ALL active preamps sound different as they are not a strait wire with ga... |