gs5556
Responses from gs5556
| Is this safe? There is always the risk of shock, and with tubes there can be hundreds of volts lurking about. Has nothing to do whether it's an amplifier or a CD player, high voltages are just as lethal in either. The only way to know for sure is to use a dig... | |
| Dedicated circuits A 30-amp breaker requires a 30-amp rated receptacle or you will be in violation of your local building/electrical codes. The fuse rating of the equipment is not a safe alternative because something else can be plugged into that outlet and it may n... | |
| Harmonic distortion inquiry THD is a ratio of voltages (harmonics to fundamental) so it can be expressed as dB. For 0.03% THD the distortion attenuation is: dB = 20 Log [THD/100] or 20 Log [0.03/100] = -70.5 Now all you have to do is add the three devices (-70.5 * 3) and t... | |
| A Question About Time Alignment Suppose you (the woofer) hit the bass keys of the piano and someone else (the tweeter) hits the treble keys, but not at the same time. The music is no longer time aligned. But if you both hit the keys at the same time, is is aligned even though on... | |
| Things I don‘t know You have to look at this from a market point of view. Do the engineers at Toyota not know how to design a vehicle that rides like a Rolls Royce or a performs like a Ferrari SF90? Whether they do or not is irrelevant because the market cannot bear... | |
| Grounding questions First things first: Power on the amplifier without the preamp. If the hum goes away then connect the preamp. If still no hum connect the source components one at a time to the preamp until there's humming. Then we can narrow it down. | |
| Reminder: how to tell current from an amp's specs? Ohm’s law alone does not apply to power. If you put a 4-ohm resistor across a 9-volt battery, does that mean the resistor is consuming (9*9/4) 20 watts? No. That would mean the battery would have to accommodate the resistor with slightly more than... | |
| different people may hear the same sound differently... Hearing is the most personal of the senses: there is no way for a person to describe what he hears to any other person. Not even a deaf person can describe the absence of sound because it is impossible to simulate deafness, the vibrations in your ... | |
| Amp straight into the wall Laser printer manufacturers tell you not to use a power conditioner because it causes a voltage sag that will prevent it from working correctly. Many amplifiers draw more current during transients than laser printers. Voltage sags will slow the re... | |
| Eurozone sickness and 230v single phase vs 240v two-phase. European 230 volts is from hot to neutral (or grounded). USA 240 volts has no neutral, it’s 120 volts for each leg. (120 volts is derived from grounding each leg). If a European 230V transformer is wired to the grounded conductor, it’s a non-con... | |
| Why not? For the same reason GM doesn't make tires. They instead partner with Michelin and try to sell you the recommended tires through a back door. GM does cars and they leave it at that. Your are asking a question from a marketing point of view that ha... | |
| Upsizing Capacitors Best practices: If it works, leave it alone. | |
| I think I just smoked my Amp Crackling sound, DC protection engaged, plus blown fuse is very likely a shorted output transistor. Replacing a fuse is not going to help in that situation. Also, to make matters worse, those Sanken output transistors are no longer manufactured. A... | |
| 10db buzzing sound MC12000 after it warms up Buzzing from the amplifier when not powered on could mean electric power is getting into the unit. Plug the unit into another wall outlet. If it doesn't buzz with the power off then check the wall outlet it was in for correct installation (i.e, no... | |
| Price Isn't Always Indicitive of Quality or Performance When price vs quality is debated, the biggest factor left out of the equation is the dealer and distributor markup, which has zero effect on sound quality. Only to be followed by fancy casework and engraving. This is why it's tough, for example, t... |