almarg
Responses from almarg
| System This article IMO provides the best description I have seen of what the confusing and seemingly oxymoronic term "fast bass" means.Regards,-- Al | |
| Speed of groove. Mihaitaa, I understood the OP as asking what the effects of the differences in tangential ("linear") velocity at different points on the record would be on the output of the cartridge, given that the cartridge output is spec'd based on velocity. T... | |
| Speed of groove. The linear velocity was "abstracted away" by the "length of the bump".Precisely! That's all we are saying. As you correctly put it, "at the outer edge of the record, the bump will be 'elongated' whereas towards the center of the record it will be ... | |
| The amazing new Marigo Evolution Signature Mat IMO it is not implausible that this mat could significantly improve the quality of real-time playback of a cd, for instance by making it easier for the transport's servo mechanisms to track the pits, thereby reducing the amount of noise they may g... | |
| Speed of groove. To me, if one would need to correlate the output voltage to a speed, it would make more sense that that speed would be the speed of the stylus relative to the cartridge itself (*vertical* movement) as that's the movement that induces the voltage t... | |
| Hissing sound coming from tweeters Al, how do you calculate the reduction in gain?As a rough approximation, I neglected dynamic headroom and calculated the gain for the MC252 based on the continuous maximum power rating of 250 watts. Based on P = (Esquared)/R, 250 watts into 8 ohms... | |
| Hissing sound coming from tweeters No, the hiss won't cause any damage. The MC252 will reduce the 32db gain of your present amp to roughly around 23db, according to my calculations. Not sure that will be enough of a reduction to be satisfactory. Also, using a 250 watt amp with 101d... | |
| Speed of groove. 12-29-11: MarakanetzAt some point of time on this post I saw response from Al (Almarg) but it dissapeared.???I deleted it, and posted the revised version you can see above. My first submittal wasn't quite right :-)Regards,-- Al | |
| Speed of groove. Interesting question. Since the variation of tangential velocity that occurs across the record is presumably the same when the record is played back as when it is cut, and since one period of a given signal frequency will extend over a physically ... | |
| Hissing sound coming from tweeters Are there any ill effects from using the attenuators?A lot of people are happy with them, but there have been some reports of adverse effects on dynamics, etc. I suspect that they would do fine when driven from a component having very low output i... | |
| Hissing sound coming from tweeters 12-28-11: MagfanPre / Power amp impedance mismatch?No. Preamp output impedance is 31 ohms/62 ohms unbalanced/balanced (per JA); power amp input impedance is 23.5K/33K (per mfr). No problem.Best regards,-- Al | |
| Hissing sound coming from tweeters I'm beginning to think that the Ayre just doesn't pair well with my amps.Given the findings you've described, I suspect that you're right. When you connect the cables to the preamp, you are introducing the possibility of ground loop-related noise,... | |
| Hissing sound coming from tweeters When I have the XLR cables hooked up to the pre-amp in balanced mode the hiss is amplified.Does engaging the preamp's mute function reduce the hiss level?Regards,-- Al | |
| Hissing sound coming from tweeters A further thought. It would probably be worthwhile to invest a few dollars in a pair of shorting plugs such as these, and to put them on the unused rca inputs of the amps.I see that the amp has a switch to select between the rca and xlr inputs. It... | |
| Hissing sound coming from tweeters Lots of good thoughts above. Given that the 89db s/n number is referenced to 1 watt (as opposed to full power), I would expect that with 101 db speakers it would result in a hiss level that can be heard at a typical listening distance in a quiet r... |