gs5556
Responses from gs5556
| audio and photography parallels?? I don't think the parallel is as close to audio. A digital picture is not recreated by a "sample" of the image - it captures it whole, similar to film. Whereas the film image is created by a chemical reaction stimulated by light onto a finite numb... | |
| Is Clipping an amp always Audioable? Clipping is not always audible as clipping does not always occur at the full volume setting. If you have music with a high peak to average power ratio, then a slight increase in power will clip the peaks slightly (i.e., it'll chop off only the tip... | |
| Are There Any Inherent Advantages to Class A amps? I don't think the class of operation will (or should) make one amp be more advantageous over another. To answer the question directly: yes, there is an inherent advantage. It's the elimination of cross over distortion which means one less level of... | |
| Tube equipment use in high altitude? Did the tubed ICBM's sound more mellow than the solid state versions on detonation? (sorry) | |
| Class A Amplifiers and impedance dips No. Only if the power supply is capable - regardless of class - and only to a limited load impedance. | |
| Tube equipment use in high altitude? Tubes were used in the radios of World War II aircraft at flight levels of 25 thousand feet or more - the same types now sold as NOS. Also, these were the VT or military spec tubes which were built for the altitudes, vibration and temperature extr... | |
| Stress on Solid State Amps An amp is "stressed" much more by turning it on from a cold start than by playing it full volume for weeks on end. An amp driven to clipping occasionally or if played at higher power settings is more dependable than an amp that has been sitting id... | |
| help with speaker problem Don't be quick to blame the speaker...I had the exact same problem in noticing that some piano frequencies sounded harsh. It turned out to be a precursor to a failing input board in my amplifier. That being said, the piano is probably the most dif... | |
| 4ohm, 8ohm speakers and output power At the same input voltage a 4-ohm driver will draw 3db more power than an 8-ohm driver. If both drivers have the same SPL at a given watt then, yes, the 4-ohm is louder. Both have the same efficiency.But now you have two different sensitivities be... | |
| 4ohm, 8ohm speakers and output power If both speakers have the same sensitivity but different nominal impedances (8 and 4-ohms), the one with the 4-ohm impedance will not play louder. The 4-ohm impedance will attempt to draw more current (power) than the 8-ohm, but any extra current ... | |
| Impedance Question: Tube Preamp with SS Power Amp Many tube preamps will also have a higher gain, which can offset any power losses from high output impedance. High frequency roll off can be an issue if the input circuit is shunted with a filtering capacitor (R-C impedance) but amps with resistiv... | |
| Slew Rate It varies with the power or output voltage. The maximum slew rate at, say 200 Watts into 8 ohms at a maximum frequency of 20 kHZ is 7.1 Volts per microsecond. So anything that's closest to this number is the fastest for a 200 watter. If you're int... | |
| Totem Winds are Too Bright I would guess that it's the room. Hardwood/tiled floors? That's the biggest culprit. Bare walls/mirrors? Also, anything between the speakers can cause early reflections (uncovered bay window, equipment and racks, TV etc). Are the speakers toed-in?... | |
| How to calculate gain You should refer to the spec sheets. However, gain can be calculated but only with some assumptions.The M300: if the 300W are into 8-ohms, and assuming the output voltage stays put, the output voltage is SQRT(300*8) or 49 Volts. If 0.9 volts is re... | |
| Tube power vs Solid state power, how much is enoug You're looking at it backwards. It's not how much power is enough but how efficient the speakers are to produce the volume level you want. A highly efficient speaker, say 101 db per one watt/meter, will blast eardrums with only a couple of watts o... |