almarg
Responses from almarg
| Preamp inverts phase question: Rodman -- Good references; thanks!Jea -- Thanks for posting those results. The thing I wonder, though, about preamps that have polarity reversal capability, is if there may be an additional significant variable present. When you reverse polarity, ... | |
| Preamp inverts phase question: Why argue the point? Just do what the manual says. What's so difficult about that?Because all the manual can tell you is if that particular component inverts. But what counts is that the system as a whole should not invert, which as has been expla... | |
| Speaker Cables The Stage's have a rated nominal impedance of 3 ohms, and their impedance is in fact close to 3 ohms across most of the audio spectrum:http://www.stereophile.com/floorloudspeakers/789/index17.htmlThat makes amplifier selection highly critical, and... | |
| IC's and Humm Hi Roger,I would think that if you install a different ic that fixes the problem, you should be all set. Probably what would be happening is that the different ic would have a lower shield resistance, which would essentially short out the ground o... | |
| Preamp inverts phase question: Adampeter -- Re absolute polarity checkers, looking at their website I suspect that the Smart Devices units that were suggested as possibilities in your other thread are no longer available.In any event, they may very well not be worth the expense... | |
| IC's and Humm If possible, try using balanced interconnects between your amp and preamp.Yes, if the cause of the problem is along the lines I described, a balanced interface (if your components support that) would most likely resolve it.That is because with a b... | |
| IC's and Humm Another observation is that one VAC 140 will pickup humm if paired with another amp on the same port.Perhaps, along the lines of what I was suggesting, that is because with the two amps each drawing substantial current from the same port, the volt... | |
| IC's and Humm As an experiment, I'd suggest putting the entire stereo system, including both sets of power amps, on the same dedicated port (assuming it has sufficient current capability). I'm thinking that there could be voltage offsets between the ac safety g... | |
| How to eliminate FM RF coming thru turntable? How about the other suggestion I had made, adding a small amount of capacitance via a y-connector at the preamp inputs (the capacitors being soldered to rca plugs that would plug into the y-connectors)? As I indicated, the only caveat would be to ... | |
| Preamp inverts phase question: I'm not a tech, are you?But I have had it explained to me by a very highly skilled Designer and I don't mean someone into DIY.As far as a article about: Google is your friend!Can you kindly offer either a technical explanation saying how I might b... | |
| Preamp inverts phase question: "[If my preamp inverts and my amp is non inverted then there is no need to correct the phase is that correct?]"Yes that is correct!Whether you hear a difference or not. This is the correct way.Can you kindly offer either a technical explanation fo... | |
| Preamp inverts phase question: If my preamp inverts and my amp is non inverted then there is no need to correct the phase is that correct?No, that is wrong, and what Benie indicated has no basis as far as I am aware. Whether the amp and preamp are individually phase inverting o... | |
| Preamp inverts phase question: On typical poorly recorded, heavily multi-miked, heavily processed material, absolute phase (or polarity, as Dopogue points out) will clearly make either no difference or a random difference. On string instruments, and many other instruments as we... | |
| Compact Field Core Driver Speaker Not sure what a "field core driver" is. Is that the British equivalent of what would be called a "field coil driver" in the US?Regards,-- Al | |
| Preamp inverts phase question: For hifi systems (stereo or Home theater), as long as all the speakers are wired the same way, it doesn't matter .... all of the speakers will be in the same phase. You are referring to what is called relative phase, which means that the connectio... |