atmasphere
Responses from atmasphere
| Why is the price of new tonearms so high Dertonarm, I was thinking the same thing, but apparently neither of us could follow her advice. | |
| SET amp w/Neg feedback? Rleff, the key to that is a flat impedance curve. The Avalon Eidelon does that well, as well as most magnetic planars, whose impedance curve has nothing to do with box resonance :)There is another issue- the difference in performance between low i... | |
| Why is the price of new tonearms so high In its day the FR arms were OK, but they have long been surpassed in terms of State of the Art. These days the better arms will be seen to have their bearings in the same plane as the LP, which helps the arm maintain steady tracking forces when pl... | |
| Riaa curve Eldartford, the unit that I use has bandwidth out to just shy of 30K. The electronics have a bit more than that, but not much (they were designed in the late 60s). I don't think you could say that there is a 'typical' cutter, as they are all desig... | |
| Blown woofer from a bad tube? Is this possible? Short answer: no.The speaker is damaged for other reasons. | |
| SET amp w/Neg feedback? Rockadanny, it all has to do with the intention of the designer. In general, if the designer uses tubes its probably a Power Paradigm speaker he created. Voltage Paradigm designers usually use transistors. That will answer the question about 95% o... | |
| Riaa curve Eldartford, when dealing with calibration of a cutting lathe, the speakers are not part of the equation. To answer your question to Raul though: we are, 'we' meaning the people who make this stuff to standards like this. 'We' say its bad when ther... | |
| Riaa curve Eldartford, my cutting lathe has a set of 'pre-emphasis' modules that are in fact the inverse RIAA curves- if you put their output into a phono preamp, the result should be flat.It sounds to me that what you are getting at is that not all cutting ... | |
| Does this animal exist? 6SN7s have a Mu of 18-20- a bit lower than is practical for a phono section. The 6SL7, which is the high gain octal dual triode, can be a bit tricky as it does not sound like the 6SN7- it sounds more like a 12AX7, and is prone to microphonics in t... | |
| What amplification is best for JMLab Mini Utopias The JM Labs have always been tube-Friendly...They seem to need a little power though. I recommend something that can make 100 watts or so. | |
| SET amp w/Neg feedback? Jtgofish, if you have a speaker designed using Voltage Paradigm rules, then what you experienced is absolutely right. We have had similar experiences.A speaker using Power Paradigm rules will often work better, including the bass, using an amplifi... | |
| Berning ZH-270 Replacement Hi Chris, if it were as simple as that! The Futterman is a 'totem-pole' circuit and is asymmetrical. Our amps use a modified Circlotron which is half the output impedance and *is* symmetrical. Futterman amplifiers usually have output coupling caps... | |
| SET amp w/Neg feedback? Jtgofish, that is not entirely true, although there is a class of loudspeakers for which it probably is. see:http://www.atma-sphere.com/papers/paradigm_paper2.htmlfor more information.Negative feedback violates one of the more important rules of h... | |
| Berning ZH-270 Replacement Bpinder, just a FWIW, This topic comes up again and again, and every time I wind up with a bunch of messages about the thread in my email box. I try not to respond unless there is just plain and simply misleading or outright false 'information'. T... | |
| Berning ZH-270 Replacement Chris74, I humbly suggest that you have no idea what you are talking about. The output transformer in the Berning is clearly visible in the patent schematic! -even if you take the tack that an air core transformer is not in fact a transformer (whi... |