almarg
Responses from almarg
| Impedence Matching Help Needed Preamp output voltage specs can be misleading. The NAD spec you referred to, which is actually ">15V" according to this document) is its maximum output voltage **capability.** Its actual output voltage at any instant of time will be the voltage... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. Roger, this is the thread Eric (bdp24) is referring to:https://forum.audiogon.com/discussions/st-70-best-sounding-versionRegards,-- Al | |
| Hey RICH Audiophiles +1 Wolf_Garcia, on all counts.Best regards,-- Al(Owner, 2014 Cayman S & 2017 Macan S) | |
| Why do some fine solid state amplifiers like Soulution have such low input impedance? ... does increasing the bias in a SS amp have an effect on input impedance? Or, put another way, could you increase the operating bias in an amp without raising the input impedance, and if you did that what would be the sonic trade offs? "Increas... | |
| Why do some fine solid state amplifiers like Soulution have such low input impedance? Thanks for the mention, John (Roxy54). Following are some excerpts from this thread, in which the same question was discussed several years ago: Almarg 2-11-2014 ... having never designed an audio power amplifier, I can't speak knowledgeably ab... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. I cannot recall any very detailed discussion of precisely what very good to excellent to superb implementation [of a DAC] actually involves. Yes, there are general references to the quality of the power supply and especially to the quality of the ... | |
| Impedence Matching Help Needed To add to the previous responses, from a technical standpoint the main concern I would have with the proposed configuration is not related to impedance compatibility, but rather that it may not provide you with enough gain for the phono source.You... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. Thanks for the additional datapoints, Rodman. I don’t think the pronounced pop at the moment the battery was connected (or when the cap was discharged into the driver) is surprising. For a theoretically ideal capacitor i = C(dv/dt), of course, ("i... | |
| Can one use 2 sets of monoblock amplifiers to one stereo set of speakers? @mzkmxcv, perhaps that is so. But as I mentioned I believe that most Sound Lab speakers run a single electrostatic element full-range, rather than having low frequency and high frequency sections that are separate and independent. If that is so in... | |
| Can one use 2 sets of monoblock amplifiers to one stereo set of speakers? If I’m not mistaken most Sound Lab speakers employ an electrostatic element covering the entire frequency range.If that is the case with your speakers, connecting two sets of monoblocks to the speakers would amount to connecting the outputs of the... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. Ouch! Sorry to hear that, Rodman. I'm very surprised, though. Here is a datasheet for an Energizer alkaline "C" battery, indicating a **minimum** nominal internal resistance of 0.15 ohms. Even if we make the extremely unrealistic assumption th... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. @Rodman99999, I'm not sure how to explain those results, but if I understand correctly the meter was indicating the voltage across a series combination of the battery, the cap, and the tweeter. Wouldn't it be more meaningful to put the meter acro... | |
| BUY Bryston!!!!! I too have had an exceptional experience having a Bryston product serviced by their Vermont facility.A couple of years ago my Bryston CD player developed a problem with the display. Bryston repaired it by replacing the entire front panel assembly,... | |
| Measuring impedance with multimeter While the Elac Debut B6 has a specified nominal impedance of 6 ohms, it can be seen in Stereophile’s measurements that its impedance is above 10 ohms at all frequencies above 500 Hz, and is above 20 ohms at almost all frequencies above 1 kHz! 6 oh... | |
| Measuring impedance with multimeter The multimeter measures the speaker’s impedance at zero Hz (i.e., DC). That reading will usually be significantly lower than the impedance at audible frequencies.Not to worry!Regards,-- Al |