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georgehifi

Responses from georgehifi

How good's your hearing
2nd harmonic is double that of the fundamental, so if a piccolo’s fundamental is 4.2khz 2nd harmonic is 8.4khz, 3rd is 12.6khz 4th is 16.8khz 5th is 21khz6th is 25.2khz7th8th ect ect Destroy any of these, and you have destroyed it’s natural harmon... 
How good's your hearing
so if you can hear them, you're not deficient in your hearing. 👍 Not really, you may hear the fundamental but not hear the 2nd 3rd 4th harmonics.  
How good's your hearing
Why do we need speakers w/20,000 hz frequency response? One word, "harmonics" second, third, fourth can go well over 20khz.My Plasma tweeter can go to 100khz!!!! boy can you hear it on harpsichord compared to just the ESL's, the highs just dance ... 
How good's your hearing
Okay so her hearing may be gone. But does she know how to listen? Like I said she can pick a class-D a mile away. 
This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers.
Even NASA uses fuses That's how they got Apollo 8 to circle and come back, they just reversed the fuse as they went behind the dark side of the moon, the rest is history. 
How good's your hearing
best practice for the fuse trolls. Their just a small part of a magic circle club, with no EE behind themhttps://static1.fjcdn.com/comments/Gtno+reach+around+what+the++_3f623b6faceda241f69b4ee96b034af3.jpg 
How good's your hearing
I think it's getting to the point of nobody cares what you or your Grandma think about class D. Just sayin..... Ouch! 
The Future of Audio Amplification
Zero-feedback Class D would seem to be a unique twist. Bit late to the party Merrill already did it using the GaN transistors, I believe the SE-R1 does also.Merrill Quote: Merrill Audio claims that this is by far their most ambitious design mos... 
In line Attenuators with Passive Preamps
RE the in line attenuation, I have decided that I may have over thought this situation and no longer am considering the use of them. I'm assuming the reason for asking about the inline attenuators is that maybe you feel your Schiit Sys volume ... 
Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other???
 I have heard the ML NO.53 a couple of times, So have I, and the problems in the upper mids and tops while a bit different are there, they are also in similar way in all other class-D's I've heard. I have not heard the Technics SE-R1 nor the Me... 
In line Attenuators with Passive Preamps
My questions are: 1) Should a in line attenuator be considered when using a passive pre?No not a great idea unless you know your I/O impedances are still good, as they will change depending (where you put them) the input or output impedance match... 
The Future of Audio Amplification
Also, have you (as George is implying) had a religious conversion to the world of class D to the point of implementing it in your products? A fair question, hopefully without the words prototype or breadboarded that no one else has heard. Cheers ... 
Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other???
Class D has come a long way compared to a few years ago No it hasn’t!Mark Levinson had a good expensive dig and tried to cure it’s evils, with the $50kusd !!! No.53 monoblocks, which had massive series output filters to rid the switching frequenc... 
The Future of Audio Amplification
I think you misinterpreted this. Nobody has been building amps with switching speeds that low in a long time Geez Ralph other way around, get with it, in this case I wasn’t talking about 200k switching speeds, I was talking band-width and the sl... 
The Future of Audio Amplification
So that makes the scan frequency in this example only 200KHz(!), Wrong again when have you seen an amp that can do 200khz, have a slewing audio frequency square wave like this, the sides are collapsing in like the leaning tower of pizza Our OTLs a...