eldartford
Responses from eldartford
| What is biasing? "Bias" in any context means something which is a steady value, on top of which some variation occurs. For a vacuum tube, bias current means the current that flows through the tube (from the power supply to ground via a beam of electrons in the tub... | |
| HELP for Tinnitus Khaki8...The placebo effect does certainly exist, but this is not to say that it explains every unexpected result.Pbb...They don't know how to cure it at the moment, but don't despair. The stomach ulcer cure that I cited on 2/29 should give us hope. | |
| 15" vs 18" subwoofer - which to buy? MORE DATASignal..SPL..NONE...40 to 55 background noise..-80....42..-75....46..-70....50..-65....53..-60....58..-55....63..-50....68..-45....73..-40....78..-35....83..-30....88..-25....93..-20....98..-15....103..-10....108The signal was white noise... | |
| Biamping; Amps w. Different power ratings? Douglas_schroeder...I'm sure this is more than you need to know...but:200 watts means 40 volts into 8 ohmsThe gain is 40/1.43 = 27.972 volts/voltThis is 28.93 dB165 watts means 36.33 volts into 8 ohmsThe gain is 36.33/1.2 = 30.275 volts/voltThis i... | |
| Behringer DEQ2496 - wow Rgodin...When I was shopping I got turned off on the DBX because of (would you believe) high noise complaints. My Behringer is dead quiet. Maybe yours was defective. The auto equalization works perfectly, even in the SW range where Behringer sugge... | |
| 15" vs 18" subwoofer - which to buy? Sean....I did not get to rerun the test last night when background noise was low. Maybe tonight. I am quite sure that the background noise is the reason that the plot becomes nonlinear at low level. By the way, the data looks too perfect over much... | |
| Review: Behringer DEQ2496 Equalizer Suits_me...In a digital system, quantization error (Plus or minus half a bit) is the same for small signal as for large, so if you express it as a percent of the signal it is maximized for small signals. Just to be "Fair and Balanced" hum and nois... | |
| Biamping; Amps w. Different power ratings? Douglas_schroeder...Loudness is determined by the GAIN of the amplifier, not by its power rating. (GAIN is volts-out per volts-in). A 20 watt amp may play louder than a 200 watt amp, up to the point where the output reaches 20 watts (very loud).No... | |
| Biamping; Amps w. Different power ratings? Piezo...1. With regard to the peak/rms (voltage) ratio, this would be 1.414 for a pure sine wave. High frequency waveforms are more jagged than low frequency, and the "spikes" will go much higher relative to the rms. Suggestion...look at some wave... | |
| Biamping; Amps w. Different power ratings? Piezo...If Peak is your concern, the High frequency amp is more critical, because the peak/rms ratio is higher. I know that "everyone knows" that the LF amp needs the most power. And that includes VTL. It used to include me until I actually measur... | |
| 15" vs 18" subwoofer - which to buy? SOME DATASignal......SPL..-67.......50..-52.......55..-45.......60..-40.......65..-35.......70..-30.......75..-25.......80..-20.......85..-15.......90Both the electrical signal and the SPL were measured, in units of dB, using my two Behringer DEQ2... | |
| 15" vs 18" subwoofer - which to buy? Sean...Mechanical losses are actually thermal in nature, like the electrical loss in the voice coil. In neither case is there any mechanism for a "threshold" to be overcome. But rather than debate, I will make some measurements. | |
| HELP for Tinnitus It would really be wonderful if tinnitus proved to be caused by a fungus, and therefore treatable. This reminds me of stomach ulcers which all doctors knew were caused by excess acid due to stess, until an unknown Aussie doctor found he could cure... | |
| What are the characteristics quality recordings? As Timf says, the sequence of selections can be very important. This is most evident in the area of Classical music. How would Mozart's Jupiter symphony go over if you played the movements in reverse order? | |
| 15" vs 18" subwoofer - which to buy? Sean...Other than compression at some high level of SPL, I can't think of a reason for a low SPL "knee" in driver sensitivity. Can you provide any further info/references?Equalization that is SPL-dependent is another one of the tricks that the ubi... |