gs5556
Responses from gs5556
| How hot is too hot? You have to measure the temp of both heat sinks under the hood with an infrared thermometer. If one is much hotter than the other, then it's a problem. Heat sinks shouldn't vary by more than 5 to 10 Celsius. If both sinks are the same temperature ... | |
| Aged components / service!? I have a CAT SL1 Signature preamp that I have been using every day for the past 28 years. Couple of years ago I measured the caps and all were to spec for micofarads and ESR.So the answer is... it depends. But for the most part, preamps do not gen... | |
| Dedicated 20a lines, 125 feet distance, which gauge wire to run? 125 feet is quite a long run and you should consider using a subpanel. Even with #8 wires you will lose 3 volts at 15-amp draw. A subpanel with minimum #4 wire will limit voltage drop to a little over one volt at total current draw of 15 amps. Fro... | |
| Are all amps being built wrong? The answer is economics. Amplifiers are voltage sources and practically all speakers are designed around being powered by a low impedance voltage source. Change the output impedance of an amplifier and then it sounds better with some speakers and ... | |
| Audiophile Fuses - Are We Certain They Provide Protection? The easiest way to test a fuse is to measure the voltage drop across it at different current increments (fuse resistance increases with temperature). If the voltage drop stays linear for currents up to and slightly above the fuse's current rating,... | |
| Cary V-12 blowing capacitors The problem is most likely a manufacturing lemon. Somewhere in that amp either a tiny section of insulation has been damaged, a small piece of wire or lead clipping lodged in a very inconvenient spot, or the wrong value passive component has been ... | |
| Class A Power in A/B amplifiers? No. Because there is no standard on what type of output stage to use. The bias current is set to give the best performance for the type of output stage in terms of linearity and distortion, while keeping an eye on the power dissipation (heat sinki... | |
| Thiel Owners tomthiel:Do the screws to the passive radiators of the 3.6’s need to be tight? I checked all the screws to the midrange and tweeter (a couple needed a 1/16 of a turn or so) but the radiator screws had quite a bit of play. Just wondering if they ar... | |
| THE IRS HAS TAKEN MY TRANSACTIONS VIA PAYPAL AND IDENTIFIED THEM AS TAXABLE INCOME Did you sell your personal stereo gear, and can prove you paid for them? Then there is no tax due if you sold for less than what you paid for. If you sold your personal items for more than what you paid, then it’s a capital gain and taxes are owed... | |
| Change the Power Voltage Look on the back at the fuse holder. If you see two different fuse values for 120V and 240V then it is very likely the voltage can be changed to 120V. You can then try calling Pyramid Audio, United Radio, or George Meyer AV and see if they can hel... | |
| Quality outlets for non-audio Second the Leviton commercial grade. Also, when replacing outlets rewire them to the outlet screws if the old ones are connected to the push in connectors in the back. Those connections have considerable resistance and can cause power quality issues. | |
| Amp switcher with tube amp protection Problem is when the SS is switched to speaker position the tube amp has no resistance. Accidentally turning on the tube amp while not connected to a speaker load will damage the output transformer. There is a workaround, although it requires a bit... | |
| Gain and linestage If you hooked up your amplifier directly from the output of a CD player or DAC you would blow out your speakers. A CD player puts out a signal of 2 volts max and a power amp reaches full power at about 1.4 to 2.0 volts. That said, a preamplifier... | |
| Krell KSA 200s power feed Going by amps can be confusing, use apparent power instead, which is voltage times amps. Krell recommends a 2400VA power supply from the wall which is 20 amps at 120VAC (2400/120) or 10.4 amps at 230VAC (2400/230). The only issue I see is protecti... | |
| Does using XLR cables (double voltage output) mean I can use lower powered amplifiers? The amplifier gains the voltage difference between the xlr positive and negative signals, not the voltage magnitude. Since the gain is the same whether RCA or XLR, the power drawn by the speakers does not change, even though the balanced input is ... |