atmasphere
Responses from atmasphere
| Anybody else waiting for GaN and Purify to have a baby? If I had to guess I would say that Bruno prefers the ease of heatsinking his output devices, which is why he does not use GaNFETs. Back about 5 years ago there was a distinct improvement in switching speed offered by GaNFETs but that's all but gon... | |
| Point to Point vs Circuit Board The issue is stray capacitance. In solid state amps this is far less of an issue with solid state since the impedances are so much lower. As a consequence there's no advantage to hand wiring a solid state amp other than not spending the time and m... | |
| Class D amps seem poised to take over. Then what? Can I simply inquire as to whether the new age of Class D amps are fostering that feeling of warmth and body that one gets from Tube or Solid State amps? @briggtrim If the class D amp is designed properly, yes, it will sound smooth with warmth a... | |
| Class A Power in A/B amplifiers? What I meant to say that my own ears have yet to discern a preference of Class A over Class A/B or even D which is even moderately consistent. :) This is an entirely different issue! If the amp has feedback, you'll probably not be able to tell an... | |
| Class A Power in A/B amplifiers? Personally I find the arguments for/against Class A on technical terms alone lack overwhelming evidence. @erik_squires The arguments are twofold for which there is a lot of evidence if not proof. The first is that you can bias the device in its mo... | |
| Class A Power in A/B amplifiers? There really is no such class as Class AB, it is used to describe the mode of operation when a Class A amp hits a low impedance and one of the pairs of output transistors stops conducting. This statement is false. Class AB is defined as any push-p... | |
| Brilliant Video proving MQA is not what they claim. Thanks for providing this link! | |
| Signal Degradation Balanced Output Has anyone developed a workaround that solves signal degradation when splitting. The problem that I have occurs even when the preamplifier has two balanced outputs. Years ago I became aware of this problem when using my Sonic Frontiers Line 3, ... | |
| Speakers for triode tube amps Take a look here and you will find a number of very musical speakers that are easy to drive with higher output impedances (tube amps) and a bit less power, designed by Duke LeJeurne of Audiokinesis:https://jamesromeyn.com/ | |
| Class D amps seem poised to take over. Then what? Any suggestions of Class D that have decent image depth and musical engagement?IMO the problem with Bruno's modules is that he makes them available for anyone to cook up the input circuit. Many designers have with really variable results! Almost a... | |
| Class A Power in A/B amplifiers? Is there a general industry standard for the amount of Class A power in Class A/B amplifiers?For instance SimAudio has always touted that they run Class A for the first 5 watts.No. If the amp is only 1/4 or 1/2 watt before it goes into B operati... | |
| Class D amps seem poised to take over. Then what? The other problem I am hearing is how mechanical it sounds.I hooked up my Gale 401s which are famous for their rhythm, groove and timing and now they sound like the music is being played by robots! I would have never thought any amp could do t... | |
| So damn hard deciding which tube preamp to buy! Bal and single ended, prefer balanced.If running balanced, you have the opportunity to eliminate interconnect cable interaction with your system, which otherwise can lead to expensive interconnect cables to get the system to sound right. The only ... | |
| Vintage tubes - facts, science, technology & empirical evidence VS. marketing, myth & hype Do measures of voltage gain, transconductance, plate resistance, noise and microphony tell the whole story? Are they sufficient for predicting performance? To what extent do they predict longevity? Or is longevity primarily a function of empiri... | |
| why do some cassette decks eat tape out of cassettes over 90 min? If the torque of the takeup spindle is insufficient, the machine will eat tapes. This first shows up on longer cassettes, but if unattended, will eventually manifest on any tape. The usual culprit is a perished tire on the takeup spindle itself. S... |