ramtubes
Responses from ramtubes
| Does anyone care to ask an amplifier designer a technical question? My door is open. @prof I still love to "visit" electrostatics (the Quad ESL 57s being my favorite), for their unique qualities. But every time I listen to an electrostatic, of any make, I come away happy to have moved on to cone speakers.That includes every hybr... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @fsonicsmith Your own decision to go hybrid with your higher powered amp and to go true balanced with your higher powered amp but not your lowered power amp is a head-scratcher. If-as you state-monos are more susceptible to hum than stereo amps, ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @d2girls Is it harder to design a amp or preamp? Thanks for a lovely simple question. Preamps are much easier and to me not so interesting as power amps. In my career I have designed two major preamps, the RM-1 a very high performance preamp tha... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @shkong78 Many people believe that SET tube amplifier give more mid range magic than Push pull tube amplifier.Do you agree on the notion as designer of tube amplifier?If so, could tell me why it is so? There are some things about SET amplifiers t... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. HI, Roger here with a question.I would like to hear how each of you figured out how much power you needed to buy in watts?I would appreciate the following information in your response. Your listening level LOUD SPL (preferably measured at 1 meter ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @unreceivedogma The triode mods actually have more power somehow. I know Jon put a tiny little transformer in there somewhere, he explained what it is for and that it’s not in the output circuitry but I’m not technical enough to remember. I hav... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @musicpod Slew rate. Some people feel that this is a significant amp spec. Would you please give your thoughts on the importance of slew rate. Slew rate is another way to look at the power bandwith of an amplifier. The Jadis 200 had horrible sl... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @fsonicsmith \\ Roger, I have two questions though the second is a doozy. 1) What do you think of the Tungsol KT150?2) What are your top 5 criticisms of the ARC Ref series components (i.e. the Ref 75SE or Ref 150SE amp and the Ref 6 preamp)?I ask... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @prof If my amps are being run at levels that do not bring on distortion, why do they still have that classic "tube-amp" character even at those low listening levels? If it’s not the clipping characteristics that are coming in to play...what is ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @unreceivedogmaWhat you are doing sounds fine to me. Shows are shows and rarely a good place to judge a system. I'm lucky to fiind one system I like. | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @rost I´m using a balanced configured Pass SS XP20 pre with output impedence stated at 1K/leg, balanced and 200 ohm, single ended (according to manuel) driving tube monoblocks with rated input resistance at 47K. Amps have both RCA & ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. Is there a particular Direct Drive Amp you can recommend to drive the panels? (Again I’m in a 240V 50Hz country).I dont know of anyone making DD amps but myself. It a rather special thing. | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @russellstone Hi. I was turned off tubes when a Mac 2275 couldn’t properly drive my ML Summit X’s (yep, ‘soft’ bass’). After some searching I found an Accuphase E-600 matched beautifully. My question is: how can Accuphase make a class A amp that ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @prof What a terrific thread! Thank you Roger!I hope you can answer a couple questions that have long baffled me about the sound of some amplifiers - in this case, using my own as example.Earlier in the thread, you mentioned how the impedance int... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @hearincolor Hello.I am very slowly learning how power amplifiers work and have a hybrid car amp with low voltage 12ax7 tubes for the input signal that got hot and melted the plexiglass cover and some nearby hot glue. Do they normally get warm en... |