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atmasphere

Responses from atmasphere

Should Amps be plugged into a power conditioner?
Current limiting starts at the power cord. Any time you have a glorified power strip, like so many so-called 'power conditioners' seen marketed to the high end audio community, the power cord it uses will have a voltage drop. We recommend to our ... 
300b lovers
@alexberger , @lynn_olson mentioned earlier: Ralph brings up a very good point about feedback: the underlying theory assumes a distortionless summing point. (The summing point is the comparator input between signal input and the sampled output.)... 
Help with XLR ICs.
does that translate to: if the equipment is truly balanced, then the XLR interconnects do not make a difference, but if the equipment isn't balanced but instead just has XLR but is really single-ended, then the XLR cables matter similarly to sing... 
Help with XLR ICs.
This is a serious question, not intended as a flame: can someone please explain to me, given the topology and function of balanced circuits, how any particular XLR cable composition can make a significant difference in sound, since whatever influ... 
Are Bruce Moore "Companion" and MFA "Magus" similar products?
MFA was prior to Bruce being on his own. Looks like the two are very similar in scope.  
300b lovers
In my next phonostage I want to make an external power supply with a separate filament transformer. But I haven't decided which RIAA schematics to use. There are basically two types of tube phonostages. In one type RIAA is implemented in feedback... 
300b lovers
Sounds like @atmasphere is early on their journey with a PP 300b.  Certainly far enough along to demonstrate a prototype at a show, much as we did in Seattle last summer.  We started prototyping with DHTs seriously about 20 years ago. Back in t... 
Handling Heavy Amps
@elliottbnewcombjr The FDA has approved a prosthetic meniscus replacement now so knee replacement doesn't have to be a thing. Thought you should know; I apologize if you already did. Good Luck with it!  
Looking for 50-100 watts of Tube Power (give or take) for my JBL 4349s
I’m open to the idea, but I use to run a Decware CSP2+ in front of an Odyssey Khartago, and I don’t remember this combo having the soundstaging of a good tube amp. @rischa There are now some solid state amps (class D even) that cast a sound sta... 
How important is the efficiency of a speaker to you?
Btw, I remember listened 4-5 times in the past the original Wilson Watt and this is a fantastic true monitor not high efficiency as a horn but measured 91db and this Watt has a problem for any amplifier ( tubes forbidden with ) at 1khz its impeda... 
300b lovers
Wow, is that the first Atma-Sphere with an output transformer? No, nor the first to be shown in public or sold. We make a small 5Watt/channel integrated amplifier that is suitable for desktop, bedroom, headphones or a main system if your speake... 
Handling Heavy Amps
My dilemma now is that while I really enjoyed this sound presentation it wasn’t significantly better to my ears than the Bryston that would justify twice the price  So I will struggle with this decision  If it was around $9 or $10k instead of $14... 
Handling Heavy Amps
@cundare2 If you don't mind some correction, the 3rd harmonic isn't 'nasty'. Musically its an octave and a 5th above the fundamental tone. Its well-known that it is innocuous such that this fact is often only mentioned in passing in engineering to... 
300b lovers
Ralph, I see you introduced a PP 300B amplifier at one of the recent hifi shows. How do you think it compares to your Class D amplifier, in subjective terms? The prototypes at the show sound very similar to our class D amps; the big difference ... 
Handling Heavy Amps
Technical papers that discuss Class D topology suggest that the distortion resulting from the topology’s dead-time constraints is similar in effect to what we used to call TIM or SID distortion in high-feedback, low slew-rate designs. @cundare2...