lewm
Responses from lewm
| Phono preamp tube rolling. Yes, some “Japanese” tubes are re-labeled Mullards or other Euro or US brand, but there’s nothing wrong with that. | |
| Phono preamp tube rolling. Surfmuz, You wrote, "…12AU7, 12AT7 and 12AX7 are pretty much the same tube with a little different gain settings." As mulveling already intimated, this statement could not be more wrong. The only thing these three tube types have in common is that... | |
| My battle with sibilance. Most loudness controls on old school preamplifiers and receivers were continuously variable, sort of like bass and treble attenuators combined into one circuit. So, for example, if you rotated them to left of center, you got a reduction in compen... | |
| Phono preamp tube rolling. surfmuz, What I meant is that there are nefarious persons who change the markings on tubes that otherwise look very much alike, so as to make inexpensive versions look just like rare and more valuable NOS tubes. So, before shelling out big bucks ... | |
| My battle with sibilance. Mijostyn, you cannot assess whether any speaker has a deliberate gundry dip incorporated into the crossover simply by measuring the response of the speaker, because there are natural dips that occur in association with a crossover from one Driver ... | |
| Phono preamp tube rolling. Tom, What is “pyseabo”? Is it another word for “placebo”? Or did autocorrect do damage to your intentions?to the OP: I try to use high quality tubes. Once or twice I’ve paid extra to RAM or Kevin for matched or low noise tubes. However tubes age a... | |
| Phono preamp tube rolling. In general, I am not a fan of tube rolling. Listener bias makes it almost certain that you will be certain you hear differences right away. (Because you spent money on the new tubes.) But those impressions tend to fade over time, unless you are ... | |
| Technics or Kuzma turntable. There is not one single high quality direct-drive turntable that I can think of that relies solely upon aluminum as an EMI shield. For one example, the Kenwood L07D uses a 7mm thick stainless steel platter sheet under the LP (~5 lbs of stainless s... | |
| Calling all Sota fans. My friend with the Doehmann sold it in favor of a major downsizing to his system, associated with moving to a smaller domicile. He now uses hi-rez digital streaming exclusively. Sold all his LPs, too, and gave me a few for free. So in essence, ... | |
| Technics or Kuzma turntable. Stop already. | |
| Calling all Sota fans. Jay, where do you live? There’s a train coming through any minute now. Pop your fave LP on the old Cosmos and tell us how it all works. | |
| Ortofon Cadenza Black loading There's something wrong or very different about what I wrote compared to what Edgewear wrote? My advice is totally compatible with his. | |
| Calling all Sota fans. Don’t you think that when Doehmann finally develops a vacuum hold down system, he will add $20,000 to the price? I do. You are probably looking at a $90,000 turntable with vacuum. By the way, when my friend decided to sell his helix, I could’ve pu... | |
| Ortofon Cadenza Black loading In case there is anyone on this thread who does not already know this, the convention is to load the cartridge with a resistance that is at least 10 times that of the internal resistance of the cartridge itself. Therefore, a typical low output mov... | |
| Calling all Sota fans. I have had extensive listening experience with the Doehmann helix in the context of a very high end system that belonged to my neighbor. His phono stage was the Ypsilon plus either the Ypsilon SUT or an EMIA SUT.. Cartridges were top of the line L... |