atmasphere
Responses from atmasphere
| Single ended = large images? Re: 6C33C tube. Years ago, I owned these Artemis monoblocks. Depending on the bias setting, the 6C33C tubes lasted somewhere around 2000 hours or so. I used to buy them in bulk @ 20 tubes/order - directly from Russia or Ukraine. Now with the war... | |
| Why tube rectification? @invalid This is an interesting assertion. If you were building a 60 Watt PP amp based on KT88s what rectifier would you use? | |
| Why tube rectification? Could appropriate HEXFRED diodes be used to replace the existing diodes in each amp without other modifications? If the equipment is already designed with solid state rectifiers then yes, there are HEXFREDs rated at 1200V with plenty of Amperag... | |
| ??? Fuse UpGrade??What Size??? @freediver Littlefuse and Bussman make the best fuses around IME. Just for fun, you might obtain some and then do the same listening test that you did in your post just above. BTW running an overrated fuse is bad advice. If for any reason your eq... | |
| D amps @hgeifman FWIW, class D amps vary in sound more than tube amps seem to. So having a bad experience with one isn't an indication that another will be the same thing. The Hypex and Purifi modules are sold as parts so you have to come up with a power... | |
| Why tube rectification? there is no reason to have voltage sag at higher power with tube rectified equipment if the proper rectifier tubes are chosen. @invalid Yes- I like the plural of the word as you chose, as that is what is needed. For example the Dyanco ST70 was ... | |
| Why tube rectification? These two competing solutions both supply the basic power to the audio tubes and output transformers, so only indirectly interact with the sound signal. I have not read anything that explains what tube rectification brings to the party. Voltage... | |
| Does Anyone Know the History of the Early Sota Turntables? @neonknight IIRC the original mat was acrylic. Oracle makes an excellent patter pad that would be well suited on there. | |
| Does Anyone Know the History of the Early Sota Turntables? If all aluminum I think there was a Supermat that was used to damp it. @neonknight The Gen 1 Sapphire did not use the 'Supermat' as I told you earlier. Here is more information: The Supermat was designed by Warren Gehl of Audio Research (altho... | |
| What exactly is PRaT??? @soix If its fast, it must not be bright. If its detailed, again that should not be in tandem with brightness. IOW you're making progress when its both smooth and detailed at the same time. The goal of the system is the music, such that you don't... | |
| What exactly is PRaT??? @soix To understand PRat, you have to understand that the ear/brain system has tipping points. If the system is too distorted, if its too slow, stuff like that, the music processing (which normally occurs in the limbic portion of the brain) is tra... | |
| Would like to try a tube preamp after years of solid state and hybrid @charliehorse If you are looking at an older tube preamp, keep in mind that its power supply might have to be serviced out to be reliable. Some of the preamps mentioned on this thread are so old that by now the filter capacitors in their power s... | |
| Spatial Audio Raven Preamp Personally, I find the tonality and subjective realism of transformer-coupled vacuum tubes to be unmatched by other technologies, but that’s just me. There are class D amps now that easily rival the best tube amps for every quality mentioned in... | |
| The Shure V15 V with a Jico SAS/B stylus VS The Soundsmith Hyperion MR and Lyra Atlas SL @mijostyn If you use that formula using 1,000,000 instead of 1, you input R in Ohms, C in uF and the frequency is in Hz; IOW 1,000,000/RxCx2Pi You're using a digital crossover for the amps so you don't really need to passively roll them off, righ... | |
| 300b lovers The takeaway is that is impossible to "overdrive" the 300B. By contrast, a charmer like an EL84 can be driven with a whisper ... even a 12AX7 biased at 1 mA will sound good as a driver (which doesn’t work with any other power tube). A classic Mul... |