gs5556
Responses from gs5556
| 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... | |
| Exactly where is the ''jitterclock '' located ? Both the transport and the DAC have the "clocks". | |
| Free air resonance? Going by Fs alone to predict performance will not do anything for you. Unless you're absolutely sure that the other parameters do not change, a new driver can throw off performance. The biggest change can occur if the impedance curve is different,... | |
| If Thiel, Wilson, Sonus, made active speakers????? If they'll sell, they'll make them. I think these speaker manufacturers did their homework in this regard and determined it's not in THEIR interests to pursue this product line. The last major shift the mainstream and high end audio manufacturers ... | |
| Tube amp help- You may, in all probability, have a shorted rectifier tube. I would test or swap the rectifier before anything else. If it's not the rectifier or the wrong fuse type, then you may have to have it serviced (shorted power supply cap or output transf... | |
| Connect my amp out of phase? Your preamp is of a simple design, although unconventional, not something exotic. Most amplifying devices (tubes, transistors) change the polarity of the input signal. In order to provide the correct polarity at the preamp output, another gain sta... | |
| Looking for dedicated power line advice. If you have a six-breaker panel with six 20-A breakers installed then you have no choice as to the phasing; the panel is full and you cannot - at least never attempt to - reconfigure the panel. Word of caution: overloading one phase of a 120/240 l... | |
| Help My AC line voltage is 128V Power companies deliver voltages from 114 to 126 volts, which is the accepted tolerance. The higher voltages are delivered when transmission line lossed are expected so that the customer furthest away will get 120 volts or so. Also, the utility vo... |