almarg
Responses from almarg
| Bass leaves after amp warms up? What is the goal of what what you are discussing?The goal is to characterize the symptoms as precisely as possible, in technical terms. Hopefully that would help to identify or at least narrow down the possible cause(s).Can I ask when you listen t... | |
| Bass leaves after amp warms up? 04-22-13: AtmasphereAl, 0.7 db across a spectrum can be quite noticeable to the ear, whereas on a sine wave is undetectable.Thanks, Ralph. FWIW, though, note that the 0.7 db was between maximum instantaneous values, which might have occurred on as... | |
| Bass leaves after amp warms up? I listened to the two recordings on my main system, via both speakers and headphones, after transferring them to CD-R. I also performed various analyses of their waveforms using Sony Sound Forge 9, a professional caliber audio editing program.By f... | |
| A thought experiment Suppose a digital music file goes through a dac, then an adc. Both units would be generally accepted as high quality. Would the final file be bit perfect to the original?Extremely unlikely. No DAC is perfect, and no ADC is perfect. The only way to... | |
| Bass leaves after amp warms up? Anyone would like to hear the two versions please mention your email addresssI don't think that A'gon allows posting or communication of email addresses, and the onsite messaging system can't accommodate attachments. Can you upload it to a web hos... | |
| Bass leaves after amp warms up? 04-19-13: Fishing716I have a portable cd recorder & plan to record when the bass is there & not-maybe hear the difference from the cd I make.The following was written before seeing Drubin's post just above, with which I agree:What would re... | |
| Bass leaves after amp warms up? Does anyone know if all the amps in question are MOSFET outputs??Ralph, I took a look at the schematics for the Bryston B60R and B135 integrated amps, which are available at the Bryston site, and they both use bipolar transistors in their output s... | |
| Bass leaves after amp warms up? Hmmm, this is probably grasping at straws, but your mention earlier in the thread that you live "close to Brooklyn" prompts me to ask if you happen to live near JFK airport. A member recently mentioned in another thread that in the past he had son... | |
| Bass leaves after amp warms up? +1 to Mapman's comment just above (as well as his other comments).Also, just to be sure, I assume that when you disconnect and reconnect the speaker cables you have the amplifier turned off while doing so.Regards,-- Al | |
| Bass leaves after amp warms up? 04-17-13: BifwynneAl and Ralph -- take a look at the graphs at the URL above. I'd like to read your thoughts about whether a solid state amp, or any amp for that matter, would get indigestion from those impedances.Hi Bruce,Thanks for providing tha... | |
| Bass leaves after amp warms up? In order to use a power amp that means purchase of a preamp as well,correct?No, not necessarily. As I suggested previously, you could borrow or purchase a separate power amp, and drive it from the pre-out jacks that are provided on your M6i. You w... | |
| Bass leaves after amp warms up? Mapman, why do you persist in pointing to the amp(s) as suspect when the phenomenon only occurs after a period of time? If they are not up to the task, don't you think that would be evident from the get-go?No, not at all. And I agree with Mapman. ... | |
| Bass leaves after amp warms up? Here's an additional thought for the OP to consider:In my experience as an electrical engineer, when a baffling problem occurs that defies diagnosis by the usual methods, including substitution of relevant hardware, it often turns out that TWO pro... | |
| Bass leaves after amp warms up? Is it possible audioquest cables can in the first hour put out a more desirable bass like a subwoofer that is punchy but then "resort" to bass that is less deep or punchy?No, IMO.I put back Audioquest cables using just one speaker & was unable... | |
| Bass leaves after amp warms up? Some of the recent posters have, understandably, not read through all of the 130+ posts in this thread. So here is a summary of some of the key facts that have been stated:The same problem has been exhibited with two different models of PSB speake... |