bifwynne
Responses from bifwynne
| Lyra Argo Question Happen to agree with Stan (Stringreen). I have a suggestion. PM Jonathan Carr and attach some pics. Jonathan is very helpful and can best advise you on next steps. I own a Kleos, and he helped to arrange for a free adjustment and inspection in Jap... | |
| Tube Amp for Martin Logan Speakers George, you posted "[a]ll you have to do is look at Stereophile speaker simulated load graphs of tube amps especially to see that they cannot give a flat frequency response into those types of loads, especially ones that dip down to 1ohms."I gener... | |
| Tube Amp for Martin Logan Speakers George, that's a pretty clear clue that ML advises that the owner should use a rock stable SS amp. I don't know how low the impedance gets ... but that is a factor to consider when picking an amp. This issue has come up before .. possibly in this ... | |
| Tube Amp for Martin Logan Speakers Generally yes ... reason ... there's much less energy called for in the high frequencies. If your music source required the amp to push 100 watts of power into the tweeter, not sure what would blow first ... your ears or the tweeter.Most of the po... | |
| Tube Amp for Martin Logan Speakers Going out on a limb here by getting technical than I should. But I recall reading posts from some our tech members that described the "common" ESL impedance function to be like capacitor. That is high impedance at low frequencies and low impedance... | |
| ARC Reference 150 Tube Biasing Issue Scott, just a thought for the next time. I am not an electronics tech, but many members happen to be. Perhaps one of them will jump in. It is my understanding that ARC, and perhaps many other manufacturers, recommend using matched tube pairs for t... | |
| ARC Reference 150 Tube Biasing Issue Scott, I doubt you will damage the amp. But it may be making some distortion because the one tube pair is a little out of spec. Here's another idea ... focus again on the other 3 tube pairs. With the set tubes biased to 65 mV, is there any slave t... | |
| ARC Reference 150 Tube Biasing Issue Scott ... how did you make out with your tube biasing issue. Did you try switching the tubes around?? | |
| What Did I Do Wrong? Well ... that turns out to be a very good answer. At the very least, you now know that the EL34s did not damage the amp .. a very comforting response. It is curious that the web site didn't mention that the amp could switch hit between the two tub... | |
| ARC Reference 150 Tube Biasing Issue Scott ... the negative voltage readings on the slave tubes are normal. If it bothers you, flip the probes around and the readings will read positive.The other problem .. the bias voltage delta between the set and slave tubes relates to a tube matc... | |
| What Did I Do Wrong? FWIW, I just checked the Rogue Cronus Magnum website. No obvious clues that it could switch-hit KT-120s and EL34s. Al, I don't doubt that some amps like the Primaluna can switch hit, but as stated, not apparent that the Cronus Magnum can. Btw, the... | |
| wattage The comments posted by our tech members make a lot of sense. Another reason to favor more rather than less power is explained in the following article: http://www.stereophile.com/reference/707heavy#QkkXpriWl5kEQaa2.97The article speaks of an amp's... | |
| What Did I Do Wrong? Just caught the 9-6 post from Mofimadness ... well yeah. If Kevin said don't do it, why would the OP go against Kevin's recommendations. I surmise that if the Rogue amp works with the KT-120s back in place, then everything is probably ok. But I go... | |
| What Did I Do Wrong? Forgive me, but I find this whole thread bizarre, particularly the OP's statement that:"I wanted to try the EL34 sound in my system so I purchased 4 Shuguang EL34B tubes which were **graded and matched from Upscale Audio.** **I checked with Rogue*... | |
| Experiences buying used cartridges Fair push back from Ebm and Daveyf. If you check my feedback, you'll see that I sold some used cartridges a while back on buyer's approval. No payment up front. At some point, trust comes into the picture. |