almarg
Responses from almarg
| connecting a sub to a 2-channel system My current thinking is to use a Y-adapter on a single channel coming out of either the pre or the DAC, then use the Audioquest sub-x cable to the HSU's LFE input. one channel from the DAC would be fixed, using a single channel from the pre would b... | |
| connecting a sub to a 2-channel system Keep in mind that if you use speaker-level connections to the sub you don't need heavy gauge speaker wire, because you are driving the very high input impedance of the sub's amplifier (probably many thousands of ohms), rather than the low impedanc... | |
| BAT vk-3ix and Parasound Halo A21 match? It sounds like you've already read John Atkinson's measurements of the preamp in Stereophile, in which he says that the balanced output impedance "ranged from a very high 14k ohms at 20Hz to 1850 ohms in the midband and above."It can be calculated... | |
| Feedback blew my phono stage? I would not reach conclusions 1, 4, and 5. It seems very conceivable to me that low frequency sound from the speaker or the sub, that is conducted through the air, is inducing a very slight vibration in the tonearm. That in turn would induce a sli... | |
| Amp Shutting Down, need help Sailcappy, Ralph is referring to seeing if the problem occurs when the input connectors of the amp have shorting plugs, such as these, on them.If you don't have any, you could pick up some RCA plugs at Radio Shack and solder their center pin and t... | |
| Feedback blew my phono stage? Sorry to hear about the damage to the preamp, Halcro.Concerning the feedback question, a high gain feedback loop that is unstable at some frequency or frequencies does not require much if any input stimulus for oscillations to occur. The reason th... | |
| Cheapest speaker cable with best bass The speaker-level input of a powered sub is the input to the sub's amplifier, having very high impedance (probably many thousands of ohms), as opposed to the input of a passive speaker having very low impedance (4 or 8 ohms or thereabouts). Theref... | |
| Does OTL pre-amplifier exist? 08-30-12: HifiharvI believe you need a cap to block DC at either the ouput of the preamp, or the input of the amp. You don't need both, so it may be safe to remove one or the other as long as you keep this in mind when changing to other components... | |
| DacMagicPlus - HD audio over LAN question The question makes sense, but I suspect that the answer is no.Problem 1 is that each networked device on the LAN will have its own local IP address (probably assigned by the router), and so the server software would have to be capable of streaming... | |
| how make your speker faster Inpep, both statements about what constitutes a square wave are correct. Your statement is expressed from the perspective of what is referred to as the frequency domain, and mine was expressed from the perspective of the time domain.Regards,-- Al | |
| Why does better power = better sound? Dover, thanks for your comment.I don't mean to be picky, but I think it would be better to refer to "reflected noise," rather than "reflection noise." The reason I make a point of saying that is that Cjl's post seemed to say that reflections cause... | |
| Selling dispute. Please comment. Lloyd & Joe (Trelja), your points are of course well taken. But being on solid ground legally, as well as morally and by any other reasonable measure, doesn't necessarily equate to a practical solution.In this case, the buyer is threatening to... | |
| Why does better power = better sound? Interesting post, Cjl; thanks!The one issue I have with your analysis, though, is that it seems to imply that if the impedance looking back into the wall outlet matched the impedance looking into the AC input of the component, the high frequency n... | |
| Selling dispute. Please comment. I once purchased a component from an A'gon seller who by all accounts is conscientious and meticulous in his many transactions, and the descriptions he provides, to a degree that is absolutely extraordinary. In this case his description of the ite... | |
| Loud pop when I use the turntable on/off button Make sure that the capacitor you purchase is rated to withstand a high enough voltage. Assuming the rating is specified as WVDC (Working Volts DC), and assuming that you are in the USA or another country where the line voltage is around 120 volts ... |