ramtubes
Responses from ramtubes
| RMS Power? @kijanki @almarg Like to make it hard done you. I looked at all the references listed in the Wicki article. They can easily be clicked on above.Half of them are referring to average power as a speaker sees it so as not to overheat the voice coil. ... | |
| RMS Power? @almarg And his point is that strictly speaking what the words "RMS power" literally mean is the RMS value of a waveform that defines how power varies as a function of time. Which would be 141.4 watts in your example, while of course 100 watts (... | |
| RMS Power? @kijanki Al, leave it (he is not going to get it). Thats really rude, howeverWould you please be so kind as to supply a link to what you want me to read, there are several articles on Wicki. OH, dont worry, I will get it or apologize for not ge... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @douglas_schroeder When I refer to "level unlimited" I mean that the amp is at maximum output of the preamplifier turned full on and the speakers not hitting past perhaps 87-88 dB. I would call an amp "level unlimited" where in my use I would ... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @kijanki Yes, drop across resistance will double, but reserves in power supply combined with the feedback will make up for that.I dont see why it is a virtue especially if it is just a spec and not what is really going on. Has Stereophile tested... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @kijanki Heres a Rowland that specs 60 into 8ohms, 120 into 4 ohms just the way you like it. The actual measured powers are " Fig.7 indicates the THD vs power for 8, 4, and 2 ohms at 1kHz, one channel driven (bottom, middle, and top curves resp... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @kijanki Ramtubes, I explained exactly what I agreed with by quoting your statement - read again.Why are you bringing emitter resistors again, yes we know that they exist. I'm not sure why you're asking me what Benchmark voltage regulation is. ... | |
| RMS Power? @almarg Hi Roger,To use your example of 28.28 volts RMS into 8 ohms, corresponding to 100 watts, the corresponding RMS current is 28.28/8 = 3.54 amps.Assuming a sine wave, the peak voltage is 28.28 x 1.414 = about 40 volts.The corresponding peak c... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @stargazer I must admit that I personally in my limited experience of owning new HiFi components I never experienced this marked change of sound during 'burn in process'. When you confirm that in regard solid state amplifiers it is the listen... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @krelldreams I do have technical questions regarding cabling and AC outlet use though! I’m not excited about super expensive cables (I’ve tried many with very little in the way of difference), but there are electrical differences (capacitance,... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @bdp24 The old Polk Audio Cobra cables were a very high capacitance design, and caused some amps to become unstable. We briefly sold those cables till we found out if you step on them they short out. Weaving magnet wire into a snake skin is a real... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @twoleftears Technical question: Do certain electronic components, e.g. capacitors, need to "form" before they operate at their best? Electrolytic caps do need to form and the form time is related to how long they have been off or stored. This ... | |
| RMS Power? @kijanki I often see power specifications like "100W RMS". There is no such thing as RMS power. Of course, you can calculate RMS value from any curve, including power curve, but it won't represent anything. "Real" power representing heat diss... | |
| Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker @kijanki I agree, but amp that doubles power exactly has to have adequate power supply AND deep negative feedback. Exact doubling implies perfect regulation (ideal voltage source), that is not possible without deep feedback. What part do you a... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ieales More than once I've rejuvenated a system by re-plugging ALL connectors, both internal and external.YES, YES, YES. Ive fixed so many things just doing that. Flat screen TVs, my Sony ES player many times, Its used up 6 of its 9 lives. Its... |