How good's your hearing
Listen to a great FM tuner and you will see. Cut off at 15000, by design for other doodads doing stuff up there. Not only are harmonics lost, but so is directionality from frequencies we do not even hear, but that our brains sense and interpret. Correct, my plasma tweeters which are spec’ed to 100khz, I can bring them in even higher at 15khz and still sense/hear them doing good things for the harmonics, air and transparency even though my ESL are said to good to 20khz Cheers George |
So what is the website of your shop? These are about as close as the "Lightspeed Attenuator" gets to being a shop https://forum.audiogon.com/topics/amps-preamps?tab=alltime https://www.diyaudio.com/forums/analog-line-level/80194-lightspeed-attenuator-passive-preamp.html If you need info send me a PM with your email address Cheers George |
soundsrealaudio
What didn’t you like about these??? https://ucarecdn.audiogon.com/27a1f333-d534-4ede-ab06-bab027fea22f/-/autorotate/yes/ |
My third Class D amp, the current generation $75 dollar special, is a total giant killer.Must be. I’ve had my bi-amped high biased (15w) Class-A/B linear power amps now for 8 years of blissful listening. And like I’ve said many times these will become boat anchors when Class-D comes of age, just not yet. https://ibb.co/TrXx1Nc https://ibb.co/SK9Jsmx https://ibb.co/p4T2q9r The bigger brother of mine. https://ibb.co/HFTLQmt https://ibb.co/NKn9Ps7 You’ve had different 3 Class-D’s, the latest 3rd being $75!!! there’s something your not enjoying. |
Did it ever occur to you people that some people, myself included, do not like the sound of Class D?You and so many others, this happens more so than than with any of the other amplifier topology comparison, class-A v A/B, SS v Tube, SET v PP. Triode v Untralinear ect ect, these have never had such a huge difference of opinion. Class-D has the most detractors, and many of these have tried a few different Class-D amps, and in the end gone back to linear amps tube or s/s, because the "music" was more important than the: size, cost, weight, heat, cost to run. Those that don’t that can’t hear it and think it’s fine, good for them. But they ignore the finding of all the ones that do. https://wonderopolis.org/wp-content/uploads//2015/03/1425_3.jpg Cheers George |
So any discussion about 100k etc is snake oil.Yes if put that way. But any tweeter capable of doing 100khz, like my Plasma's can, means it's diaphragm is so light (air in this case) that at 20khz it's distortion will be far lower that anything else, with a weightier cone diaphragm. that's why they sound better. Cheers George |
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 in space in front of you, you swear you can reach out and touch them, Cheers George |
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 21khz 6th is 25.2khz 7th 8th ect ect Destroy any of these, and you have destroyed it’s natural harmonic decay, your left with "gaps" in the music, which is a common Class-D complaint, as they have output filters to rid the switching noise that create phase shifts down to 3-5khz. Like when you puck a guitar string, it vibrates faster and faster as it decays away, stop it or change it and you've killed the natural harmonic decay. Cheers George |
best practice for the fuse trolls.Their just a small part of a magic circle club, with no EE behind them https://static1.fjcdn.com/comments/Gtno+reach+around+what+the++_3f623b6faceda241f69b4ee96b034af3.jpg |
