gs5556
Responses from gs5556
| Tu-bee or not tu-bee... A philosophical question. It should not be surprising if some of the VT-231 variants sound the same as its 6SN7 proper in a vibration-free environment. The difference is that the VT-231 is a military spec version, designed to minimize microphonics in high vibration setting... | |
| isolating a tube problem - ARC LS5 preamp Well, the ARC LS5 could be what, 10 years old or more? Maybe it's more than one tube that's bad. I would replace them all - and I would have done so at the time of purchase. Those tubes are everything - makes no sense to skimp. Might be time to in... | |
| Adjusting Mode Buttons of Audio Alchemy DTI Pro32 If I remember correctly, to set the dither you have to press and hold the "input" button with one hand and press the dither select with the other. Or maybe it's press and hold both the "input" and "phase" while selecting dither.Sorry, I am strictl... | |
| popping sound Give Krell tech support a call. Could be a problem with the muting (soft-start) circuitry. | |
| NOS Tubes--Are they worth it? or accurate? No one said adopting tube amps is easy. Finding tubes that work well is a demanding undertaking, especially with the NOS's. Some that you find are gems, some are dogs, some work well with this but terrible with that, some die quick and painless, o... | |
| May use a step down transformer for HI-End ? Most U.S. electronics are UL listed for 120 volts from 50 to 60 hz. UL listings for computers, electronics, hair dryers, etc., take into account travel to 50 hz countries and, accordingly, manufacturers design power supplies to accomadate frequenc... | |
| Urgent help: fuse breaker box for dedicated line? Something sounds wrong here, DT. The "contractor" will do the wiring if you provide the panel? Politely decline - this guy might not be an electrician. Electricians will know exactly what to buy for your requirements and how to legally install. Ca... | |
| If tube amp is left on, but not playing........ A tube burns out quicker with no signal. Tubes work in the opposite of transistors - a transistor will pass maximum current at the highest signal voltage and the least current at no signal. A tube will pass maximum current at no signal voltage and... | |
| Amplifier "gain" question No. Gain means how much the voltage is amplified with respect to the input signal. Power means how much energy it takes to get it there based on the load an amp sees. As an example, if you were to lift an object, irrespective of weight, to a given... | |
| Mosfets: The way to go for SS amplification? You cannot really pin them down as which is better or what's the advantage of one over another. Each have their own operating parameters and do basically the same thing in the end: amplify a signal. How they are implemented for a given topology, t... | |
| Balanced impedence? They should not be equal. If the input/output impedance of a preamp to amp are equal, you have a maximum power transfer between the two. This is nice, however since each component has its own power supply, it's a useless nice. What is important is... | |
| Output Impedance Preamp-Input Impedance Amp Pass "X" preamps have an output impedance of 200 ohms RCA and 750 ohms XLR, which should answer your question. | |
| Nondirectional & Inaudible Bass: What Frequencies? Depends: non-directional as you hear it or when the low frequency wavelength becomes long enough to bend around objects?The frequency that you perceive to be non-directional depends on the distance between your ears. This happens when the distance... | |
| What's My Problem? Sounds like a mis-match to me. I don't think it's power-starved clipping at all, but a disparity between the output impedance of the passive pre-amp and a low amplifier input impedance. If the RB-981 has an input impedance of less than 47K ohms (2... | |
| Short notes on Sibelius Seven Symphonies Also, Colin Davis and the Boston Symphony Orchestra is worth a mention. |