almarg
Responses from almarg
| Speaker sensitivity, impedance, and calculating amp power What is the formula for calculating what the SPL would be at 3 meters (typical listening position) rather than 1 meter? For a single speaker, and assuming it is a conventional box-type (i.e., it is non-planar and non-line source), and neglecting ... | |
| How to guarantee to lower noise- ground loops in your system As I'm writing this I'm also playing my stereo that has a phono section, a line preamp and dual mono power amps that all have switches to lift the chassis grounds. Those mono amps always play with the ground lifting switches in the lift positio... | |
| Bits Are Bits, Right? From a post by member Kirkus (who has a vast amount of hands-on experience with the internal workings of CD players) in this Audiogon thread from 2011: Two big conceptual errors I see very commonly are the assumption that any intrinsic jitter rel... | |
| Speaker sensitivity, impedance, and calculating amp power Another way to have asked the question would have been:"What role does impedance have, if any, alongside other factors in the calculation of how much power should be used to drive a speaker comfortably?" In modern times speaker sensitivities are ... | |
| Is Parasound on to something? Or, How important is crossover management in preamps? If I didn’t prefer the Parasound, though, I supposed I could get an external crossover and have that feature with a different preamp — perhaps with more precision, even? That would allow me to get the preamp I like best *and* having the control a ... | |
| What is the voltage To bias a marantz 8b? Maybe this doesn’t apply to a 8B? That appears to be the case, based on my examination of the schematic that is provided in the service manual I referred to earlier. The meter in the 8B measures the bias current directly. The voltages you re... | |
| Is Parasound on to something? Or, How important is crossover management in preamps? @cal3713 Thank you kindly for the nice words. I always value and enjoy your posts as well.@hilde45, Excellent answer by Mr. Salk, as Doug had prognosticated. I would add that even if a woofer does not bottom out, as it approaches that condition ... | |
| Is Parasound on to something? Or, How important is crossover management in preamps? ... I'm looking at Dynaudios and Salk WOW1's Considering the diminutive size of the WOW1 (7 x 9 x 10.75 inches, including a 4.5 inch woofer) my guess is that **in this specific case** the sonic benefits of keeping the deep bass out of the spe... | |
| How to guarantee to lower noise- ground loops in your system ... your illustration only shows a 5 amp current draw on a 20 amp circuit breaker, there in not any way 5 amps could trip a normal 20 amp circuit breaker. Yes, and that’s exactly the problem, as page 29 of the reference very clearly explains. In ... | |
| How to guarantee to lower noise- ground loops in your system The previous comment by Cleeds is 100% correct. For further explanation see page 29 of the following excellent paper, written by a distinguished expert on such matters: https://centralindianaaes.files.wordpress.com/2012/09/indy-aes-2012-seminar-w-... | |
| What is the voltage To bias a marantz 8b? I took a look at a "partial" but fairly complete service manual for the 8B, which can be downloaded from hifiengine.com if you register there or are already registered there.I think that you might be able to get **roughly** into the right ballpark... | |
| Best/easiest way to convert wma files? Hi Uberwaltz,A program I am familiar with, which I have used extensively for various amateur purposes, and which can "batch convert" files in pretty much any audio format to any other audio format is Sound Forge Pro. As the name suggests "batch co... | |
| External Hard Drive If you haven’t already done so, I would suggest that you try to obtain explicit confirmation that the Uniti Star can utilize a 4 TB or 8 TB drive.I looked at the writeups on it at the Naim site, and while in the support section there is a Q&A ... | |
| Speakers Don’t Matter As Much As We Think They Do? IMO a major reason for the divergence of viewpoints which tends to exist on this question is that for a given level of sonic quality the cost of a speaker tends to be dramatically affected by two things: (1) The maximum volume the speaker can clea... | |
| Cover Songs that are better than the Original Thanks, Russ (rcprince). Yes, "Projections" was indeed a great album, from start to finish, and has long been one of my all-time favorite rock albums. Best regards,-- Al |