ramtubes
Responses from ramtubes
| Does anyone care to ask an amplifier designer a technical question? My door is open. In an electronic circuit, when current flows through a resistance, voltage is developed. Most would say when a voltage is applied aross a resistance a current flows. An ampifier supplies a voltage and the current is determined by the load. Ter... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. For a technical look at Bi-Wiring, please see http://ielogical.com/Audio/CableSnakeOil.php/#BiWire Please note that these are Spice models and not actual system measurements. He was doing fine till he got here on #1.. To go back to our mar... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @tinear Richard... I am enjoying the heck out of this forum and am learning quite a lot. I am interested in your thoughts and insight into Bob Carver’s latest tube amps I heard the amps were very light weight, had tiny transformers in those b... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. In my experience, it is not a myth and it does incrementally improve the sound quality. My understanding of the technical reason is it reduces the negative affects of the crossover by (almost) directly connecting the amplifier to the drivers.The b... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @oem This thread is going way to fast for me.. Way back, power cables was mentioned.. For those that said that they don't make a difference, does speaker cables and interconnects make a difference ? I felt that if the latter two makes a differen... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ffzz My speakers are 93db sensitive (1w/1m) with 8 ohm impedance (7ohm min).With a listening distance of 8 feet, it seems 15w will be more than enough to produce 100db or so loudness that Symphonic music peaks into from time to time.Assuming 100... | |
| The death of an amplifier Keep the amp cool as possible. Only power on when you are listening. Blow out the dust now and then. Heatsinks must be sparkly clean, dust reduces cooling. I have severeal receivers that are 35 years old, Used daily, no repairs. no recaps. I find ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ffzz4 A couple tech questions for Roger. Others please chime in too.Is it possible to estimate how much amp power will be enough (i.e. never clipping) simply based on speaker specs (assuming they are correct), and listening habit/situation (i.e. ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ieales Depends on the circuit design. A lot of pro gear has IC balanced outputs that can short either leg to Gnd and the output acts single ended, driving no current into the shorted leg. iesles Please elaborate. I don't how the shorted lead... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. * Discussion on diode transients and measurement thereof here: https://electronics.stackexchange.com/questions/323507/bridge-rectifier-4-diodes-vs-single-chip Not much meat or it sounds. I didnt read the whole thimg. In my RM-5 preamp I found ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @jafox Thank you for the responses above. The preamp is Aria WV5, the last design by Michael Elliot of Counterpoint 10 years ago. The last thing I want to do is to put anything else in the line such as a transformer.My experience has been that the... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. daveyf first the swapped polarity from amp to speaker does no harm and most will not hear any difference as long as the swap is the same on both sides. All you have done is invert absolute phase which has been a point of contention for many yea... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @prof I could really use some help betting a better grasp of amplifier/speaker interaction. Specifically, in what sense a speaker is "easy to drive" for an amplifier.This seems to generally relate to two parameters:1. Speaker sensitivity2. Speaker... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ atmasphereIn one post Roger says it doesn’t make much difference, OTOH in the very same post describes the power cords that he made up special and how anyone can do it. I have to assume that he felt it was worth doing. Ralph, what is OTOH mean? ... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @fleschler ramtubes - So, you don't believe power cables make a difference other than connectors and isolation transformers are worthless? Is that correct? Do I detect a little nudge there? I think isolation transformers are great when needed... |