atmasphere
Responses from atmasphere
| Are future improvements in Amp/PreAmps slowing to a crawl? @inna Why would a respected tube amp designer want to play with something very different?To see what is possible.Nelson Pass sold a kit very briefly that employed an output transistor known as a Static Induction Transistor or SIT. This was and so ... | |
| Are future improvements in Amp/PreAmps slowing to a crawl? @kosst_amojanThe gold standard is class A and nobody has come close to building a class D amp that touches the qualities of class A. Even the very best draw very mixed opinions. Amplifiers are art. Every amplifier imparts distortion with some c... | |
| Value of Futterman Amps If the amp is unrestored a few hundred dollars is the price depending on condition and tubes. If restored then you see the bigger dollars $1000-$1500. | |
| Are future improvements in Amp/PreAmps slowing to a crawl? Our amps are really not spinoffs of anything. And they are tube. So I don't agree we're at the end of the line by any means...But to make it more interesting, we've been working on a class D amp of our own for which we're also working on a patent.... | |
| DC leakage from power amps This problem is **not** caused by DC!!The speaker has crossovers that prevent the midrange and tweeter from seeing any DC- even if the amp had a serious failure that put out so much DC that the woofer was fried, the midrange and tweeter would stil... | |
| PHONO PREAMP its output impedance is so high that only speaker has reasonable punch driven by those type of otl amps is eletrostatic speaker. Furthermore ,even after extentive mod, atmaphere amps longtail differential driver stage is too weak (guess which ... | |
| which is better? Stereo Amp or Monoblocks? @blindjim Topology isn’t always the big deal with some amps, say tube amps for example. There are tube monos running sE only. Very nice ones. There is a very good argument which paralelles this thread…. Fully differentially balanced or single ... | |
| DIY power cord / cords - really good Just a little warning: solid core AC power cords are illegal for sale as they can be dangerous to operate. If the solid core breaks there is the potential (pun intended) to short to other parts of the circuit. The cable is most likely to fail at t... | |
| which is better? Stereo Amp or Monoblocks? @ mr_mWhat are the advantages of a loudspeaker system with a 16 ohm nominal rating???All amps have less distortion driving 16 ohms as opposed to 8 or 4. Tube amps in particular will not only have less distortion, but (if transformer-coupled) will ... | |
| PHONO PREAMP Stay away from those phono stage using 12au7s. High end tube gain stage should not use those cheap tubes w/ high output impudence and non-linear gain. High mu tubes may not Sound smooth as directly heated tubes, but at least be able to drive e... | |
| which is better? Stereo Amp or Monoblocks? +1 for stringreen.The thing is you have to qualify any answers with 'all other things being equal'. If you do that then monoblocks are the clear winner. One advantage is you can place them by the speakers and keep your speaker cables short. This c... | |
| Design a $60,000 Speaker - Start here ^^ other than this thread, there is no context and even then not much. I'm a pilot and I think about aerodynamic issues sometimes. Turbulence around the basket of a woofer seems like a thing that if solved, could reduce distortion. MISCO is a driv... | |
| Design a $60,000 Speaker - Start here @erik_squires I've had this idea that the struts that go from the front to the back of the woofer need to be machined aluminum, and formed in a sort of airfoil, so as to minimize turbulence. So far I've yet to see any woofer that uses anything lik... | |
| unity gain active tube preamp? @shredder Thanks. Btw, my setup is fully balanced.We've done buffer-style versions of our preamps on occasion per customer requests. Our preamps were the first balanced preamps made. | |
| Turntable and Rack vibration control There are several reasons why some or most of these vibration apps won’t work for seismic vibrations, including but not (rpt not) limited to the fact that speakers do not (rpt not) produce any mechanical feedback below say 25 or 30 Hz.This sta... |