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Responses from upscaleaudio
| Conrad Johnson vs. McIntosh Tube Gear With 96dB efficient speakers your biggest problem will be keeping the noise out. One of the preamps you are looking at has a gain of 25-27dB. You could end up with tubes going noisy or microphonic very often. I would look for something about 14dB ... | |
| Weird problem. Bad tube or something else? They were for the most part used in Tektronix oscilloscopes and they will be noisy and often have grid leakage. In addition you mentioned that they sounded cold, hard and bright. That's exactly what happens if they are worn out. That tube is wonde... | |
| Prima Luna Premium Pre or Conrad Johnson ET3 SE Zd542, if I upset you somehow, I'm sorry. On to the topic of the thread.Abrew: I do think about that. Everybody is trying to make a sale I suppose. Including consumers that bought a product and want to explain why. But motives don't matter that mu... | |
| Tube recommendations for Cary Cad120s We've re-tubes a lot of those as I've sold a bunch of those amps. KT120's would be a great move and very durable as long as you get good ones. Get a matched octet. Not two quads. And buy one matched spare. That way if a tube fails in either channe... | |
| Prima Luna Premium Pre Thanks HiendmuseI assume that anybody on this thread has also seen the thread about the DiaLogue Premium vs the CJ ET3SE. There is a lot of info there. This thread was about the ProLogue Premium so I'll put this info to explain the difference betw... | |
| Prima Luna Premium Pre or Conrad Johnson ET3 SE Thanks for the kind words. And Zd542, I don't know what comments I made, but back in the day, there was a lot of that. Frankly that's why most industry people don't get involved in forums anymore, including me. No data, just meaningless sweeping c... | |
| Tube Amp - Output Power Fuse Protection What you have to add into the equation is how hard does that manufacturer run the tubes? They won't tell you, and most customers don't understand anyway. Here's a simple tip:You need to know plate voltage and how the tube is biased to determine di... | |
| Prima Luna Premium Pre or Conrad Johnson ET3 SE Zd542 sorry you got upset. I didn't say that was a picture of a ET3SE. If you look at the link it says what it is clearly. FWIW I put the picture of the ET3SE on the bottom. As to your statement about nobody having tube problems in the ET3SE etc, ... | |
| Prima Luna Premium Pre Hola Hiendmuse You have a very good preamp. Yes Mystere is still happening and there are new designs that will come out. He wants to implement some new ideas on laddered resistor volume controls. Like yours has. PrimaLuna caught on much faster tha... | |
| Tube Amp - Output Power Fuse Protection ARC doesn't use fuses. Cary and CJ and most others do. The thought would be that a fuse in the circuit path isn't good sonically. There is current going through the fuse up to the fuses limit or rating. I've never been able to compare the two. I h... | |
| Prima Luna Premium Pre or Conrad Johnson ET3 SE The 6H23-EB is the only tube that will hold up in the CJ Classic 2SE, ET3SE and ET5 enough that I will warranty them for 90 days. And that tube is increasingly hard to get. Just a heads up. I would buy some back ups. I have over ten thousand new o... | |
| Prima Luna Premium Pre Hi Pkelly I have no doubt your ET3SE sounds great. Your question above asked about the quality of the parts used. Valid and important to ask. The PrimaLuna uses audiophile grade Takman resistors and SCR Tinfoil caps made in France, Alps Blue Velve... | |
| Prima Luna Premium Pre I also wanted to respond about preamps. You can't say there is a CJ "sound" anymore that you can say there is an ARC "sound". The CJ ET-3SE is a hybrid. Quite different than the PV-10, 11, and 12. And it uses a 6922. ARC has made hybrids too. And ... | |
| Prima Luna Premium Pre I saw this thread and smiled. I can assure you that PrimaLuna is everything that the experts say it is. As to the fellow that said he likes to listed to it loud, I just received this from another Mac owner that has 601 amps. He didn't sell the Mac... | |
| Mac vs Primaluna I could not believe that a Mac power amp would have an input impedance of 10k ohms. But I looked it up and it's true. This is outside the norm as most solid state power amps have an input impedance of about 50k ohms (most tube amps about 100K ohms... |