atmasphere
Responses from atmasphere
| Vibration isolation or absorption? @emergingsoul I view this as 'points vs squishies'. Points are used to move vibration into the mass to which the point is pointed. This is an old principle- I had an LP mastering lathe made about 1950. Its anti-vibration stand used adjustable p... | |
| We should reject hard-to-drive speakers more often If we are talking about the original Apogee true ribbon 1 Ohm speakers, this would be news to me. Technically Atmasphere is correct, they use the aluminum panel as the voice coil the reasons for thermal compression in actual voice coil spea... | |
| Amp Warranty Repair - What's an acceptable timescale for turnaround? @bazb Just so you know, the supply side shortage thing is still going on. Depending on what your item needed in terms of repair the lead time might not be something anyone can say with any accuracy. Just to give you an idea, we placed an order fo... | |
| What Class A is better? SUGDEN FPA-4 or PASS LABS XA-25 Oh I don't know, just the inventor of the first Class A circuit design. If it weren't for Sugden, it's more like WHO IS PASS? Class A operation goes back to the 1920s. | |
| Brand New Vinyl Static and Pops I’ve never had a problem with new vinyl right out of the jacket/sleeve. Its always been quiet. I don’t have problems with older LPs either, and I don’t clean them. I do use a carbon fiber dust brush every time I play an LP. Its grounded. I found... | |
| We should reject hard-to-drive speakers more often I don't think ESL's are the only loudspeakers that don't suffer from thermal compression, what about full range panel speakers like apogees? Apogees have a voice coil and so thermal compression is possible. | |
| We should reject hard-to-drive speakers more often High power class D amps more than make up for the difference in dynamic contrast between low and high efficiency speakers. High efficiency speakers have way worse problems than thermal compression. @jon_5912 Rather than innuendo, could you be s... | |
| We should reject hard-to-drive speakers more often yes low impedance in upper registers is nothing to worry about but tuning impedance curve in the lower registers to design a speakers desired characteristic. I am thinking Wilson speakers would be a good example some Wilson’s are known for having... | |
| Best Class D GaNFET Amp Comparison. Who to invite? The suits ought to learn a thing or two from Ric, but they won’t bother listening to the grassroots from their high towers. Who are the 'suits'?? Why would you buy a DAC, a preamp, analog interconnects and a regular class D or other amp......... | |
| Recommendations for a vacum tube tester In 1950 they were $25 My tester was $159 in 1959…. Cheap ones ('emissions' testers) did but a decent (transconductance) tester could cost about $800 back then. That's about $10K in today's dollars- a significant but essential investment for ... | |
| We should reject hard-to-drive speakers more often Live music needs efficient speakers to reach suitable SPL levels but for smaller spaces speaker designers can flatten the curve but the impedance does go down. @jeffrey75 If the amplifier is behaving as a voltage source and the speaker is desig... | |
| New Class D amplifiers its a compeltely different concept but the functionality of both is the same. @orchardaudio If you ask me your amp has the greater functionality... | |
| Stereo or monoblocks Especially if you have speakers of less than 8 Ohms, speaker cables can be critical- monoblocks allow the speaker cables to be shorter, thus reducing the artifact they might impose. If the monoblocks have balanced inputs, this can allow the interc... | |
| We should reject hard-to-drive speakers more often That a speaker is difficult to drive just means you need to get gear capable of driving it. I think the great majority of people who own such speakers have got suitable power for them. Of course that is very true. But like I mentioned earlier,... | |
| Tube amps - what 3 things… The designer/builder of our custom amps told me that fixed bias provides more "snot" than cathode bias. He meant power by snot. I know you’ve stated in this thread that there is no power difference between these two biasing configurations. Can yo... |