ramtubes
Responses from ramtubes
| Autoformers, The Benefits in matching amp to speaker "An Autoformer or any transformer cannot fix a difficult load and only affects stability in a poorly designed, on the edge amplifier." What I am saying here is that a difficult load stays difficult. The transformer just puts less stress on the ... | |
| Autoformers, The Benefits in matching amp to speaker tomic6011,278 posts09-03-2018 7:46pmRoger - echoing the appreciation for joining this community and hopefully you will see value and continue.i worked atProgressive Audio and we carried the Bev 2, magic when they worked !!!!The model 2 and 2sw w... | |
| Autoformers, The Benefits in matching amp to speaker bifwynne2,044 posts09-03-2018 5:43pmRoger, your comments about speaker crossovers is very interesting. Passive crossovers present another issue: phase coherence problems. I tried to deal with the issue of phase coherence caused by higher orde... | |
| MAC Autoformers? Read this recommended article with caution or not at all. :http://www.normankoren.com/Audio/FeedbackFidelity.html It has many errors and misconceptions. Not a good lesson on feedback. | |
| MAC Autoformers? Since the RM-200 produces about the same power on both taps, what possible reason is there for NOT hooking up a nominal 8 ohm speaker to the 4 ohm tap? Thanks---Eric. This is something that needs clarification. The reason we have taps on tube a... | |
| MAC Autoformers? 10,000 hours is typical- so we warrant the power tubes for a year on this basis, and always have. Ralph, What is your dissipation figure as a percentage of rated? How do you figure in high current peaks when the amp is used at full power? I ... | |
| Autoformers, The Benefits in matching amp to speaker To Lewinski and others thinking about multi amping please consider this.The crossover in a typical two or three way speaker is entirely responsible for widely varying impedance, distortion and is just a bad idea in a high end system. Its fine if y... | |
| Autoformers, The Benefits in matching amp to speaker 09-01-2018 3:38pmI'm building an active system where the midrange will be driven by a 2A3 SET. SETs like constant, high impedance. And need high efficiency too. Many high end midrange drivers have relatively flat yet low impedance. Would an auto... | |
| MAC Autoformers? Amen to this Tube Amp post-we need more engineers on here...HI hemigreg, Your have brought up some good points here and I hope you take my expansion on them as a compliment. Many of the readers of this thread have been pulled into impedance and ... | |
| MAC Autoformers? HI BIF,I looked up your amp on the ARC database but no schematic for the 150. Great site for those who are curious about ARC gear. From what you tell me it appears there is only one bias pot per channel. Do you have a schematic for me to look at? ... | |
| MAC Autoformers? Thanks guys, I appreciate the compliments. Making amplifiers has been my life's work as I find them forever fascintating in all their many forms. Though I have put into producion only three power amps and two preamps, there are lots of designs han... | |
| Autoformers, The Benefits in matching amp to speaker I tried to understand the OP, but I'm not getting it or something. How does a transformer only act on 180 degrees of a wave form? That doesn't make sense. And if the transformers is making the load easier to drive, how is it not taking away the ... | |
| Autoformers, The Benefits in matching amp to speaker bdp24 I consider the old Quad (which I own, in addition to LFT-8b's and Magneplanar Tympani T-IVa's) still the gold standard in that regard. But the ET's play a lot louder! I agree the 57s are the gold standard for midrange due to the virt... | |
| Autoformers, The Benefits in matching amp to speaker I think he is and I'm not sure what he means by "your poor design"? realdaeal, I don't understand this either in OTL design manufacturer don't mention about the specs about the tubes they used which is the most important in OTL designin,.t... | |
| MAC Autoformers? Ralhp, At least we agree that Paul was a good guy and liked to experiment with different things. |