eldartford
Responses from eldartford
| Driver efficiency vs. overall speaker efficiency Trelja...What if the "box" includes a passive radiator? Of course the PR draws its power from the driver, but I think it does the electrical-to-acoustic conversion more efficiently (because cone excurion is less) than if the audio all came from th... | |
| Will this isolation transformer limit power draw? Lak...Some questions...1. If a transformer removes "grunge" (that must be some technical term that I am unfamiliar with) why doesn't the transformer that is already in the audio equipment do the job?2. Why doesn't power supply capacitance do the j... | |
| Will this isolation transformer limit power draw? The transformer is probably OK for any reasonable home use of the amp, but why the heck are you using the transformer? | |
| House Amperage vs Stereo Amperage sean...About circuit breakers...when a tree next to my house was struck by lightning almost every fuse in the house blew, but not a single breaker opened. (Give me fuses any day).About rail voltage sag...if the audio signal peaks at 35 volts this ... | |
| House Amperage vs Stereo Amperage Chipman...A good observation. I suppose one could have an amp with ten volt rail voltages that could put out 150 amps, which would be 1500 watts. It would probably work better as a welding machine than an audio amp. | |
| Driver efficiency vs. overall speaker efficiency Jeffreybehr....My points are:1. The term "Efficiency" is just confusing. I don't see it quoted by manufacturers.2. You gave the answer, but did not "do the math" so that others could understand where you are coming from. I am not disagreeing with ... | |
| Driver efficiency vs. overall speaker efficiency "Efficiency"???...The only thing I see quoted in specs is SPL in units of dB at 1 meter for 2.83 volts. This is 1 watt for an 8 ohm load.Power = Volts squared divided by ohms.(2.83 * 2.83) / 8For 4 ohms it's 2 watts. | |
| What is the best phono preamp you have heard? I have an ancient outboard phono preamp...PS Audio II, which dates from the early 1980s, and was the original product of the firm. It consists of a single top quality circuit board, with top quality parts, inside an elcheapo folded aluminum shell ... | |
| House Amperage vs Stereo Amperage Feedback around an audio amplifier enables it to properly follow the signal input even if the "rail" voltages fluctuate. If the rail voltage diminishes, the transistor (or tube) is just turned on more. I am sure everyone is familiar with the way t... | |
| House Amperage vs Stereo Amperage 15 amps at 115 volts represents 1725 watts...more than your toaster! Think what this would do to the tender voice coil of your speaker. Obviously the average power delivered to the speaker is only a few watts. Speaker sensitivity typically runs ab... | |
| Smaller speaker - bigger Woofer? If you want to put a big woofer in a small box the solution is an isobaric setup (Two woofers, one behind the other...half the box volume). Over to you sean. | |
| Driver efficiency vs. overall speaker efficiency Satch...Efficiency is stated as dB per VOLT (not current). Of course the current will be more with a 4 ohm load, but that's the power amp's problem. | |
| Recommendations discs for SACD/DVD-A trial Swampwalker...I think you need to get a SACD disc that claims to be "pure" DSD. No PCM involved with the master recording, or the mixdown process. On this disc, the redbook layer will have been made from the same original data, but with conversion... | |
| Recommendations discs for SACD/DVD-A trial In the case of SACD, you have a 16 bit (redbook) CD version on the same disc. If you want to have two physically separate discs, rip a copy of the CD layer from the SACD.Whereabouts are you in CT? I am in Stockbridge MA. (Go Red Sox). | |
| Mercury Living Presence SACD's Rcprince...You're right. I am talking about "Living Stereo" not "Living Presence". (Actually they are all dead). I think that some of the confusion (which is not limited to me) comes about because both series involve some 3-channel recordings, new... |