atmasphere
Responses from atmasphere
| Living With A Class A Tube Amp @immatthewj FWIW, 'pure class A' is a marketing phrase. As far as engineering goes, a circuit is either class A or its not. None of this 'enriched class A' stuff you often see (such amps are class AB). In your case my guess is class A1. | |
| Living With A Class A Tube Amp @immatthewj Class A, if we are talking about tubes, comes in three flavors, A1, A2 and A3 (recently patented). If the amp really does get hotter when you push it and it really is class A, then its class A2. In class A2, grid current can exist dur... | |
| Living With A Class A Tube Amp Sometime in early '20 I replaced them with a set of the reissued Russiian Tung Sols and they have held up beautifully (however, I don't run them as hard and no mishaps involved). @immatthewj If the amp really is class A, you do run them as ha... | |
| Living With A Class A Tube Amp This is not a class A amp. It is a push pull. @carlsbad2 Push pull amps can be class A no worries. The Dynaco SCA35 using a pair of EL84s was a class A PP integrated amp. We’ve been making class A triode PP OTLs for decades. If you were not a... | |
| My Caladan Impressons Be advised that these speakers benefit from some break-in time. They sound even better at 100 hours than they do out of the box. I especially like how they sound with tubes. @wester17 Clayton Shaw Acoustic Lab showed with us at the recent AXPO... | |
| 300b lovers With use of RC cathode bias won't have such issue but we need to watch out when using fixed bias. @kmtang When setting the bias for any fixed bias amplifier, its good practice to check the bias after an hour of operation. IOW all power tubes re... | |
| It's a Long-shot: Meridian G02 conversion to balanced tape out @jji666 If you use the tape outputs in this manner, you will want to know that they won’t drive the inputs of a studio tape machine such as a Studer or Otari. Inputs like most studio machines use are ’+4dBm’ which is 1.23V into 600 Ohms- the main ... | |
| SUT help From answers to my original questions, it seems like finding a SUT with 1:10 and 1:20 options might be best since it sounds like there's been success with both and either should work with various configurations on my phono pre-amp. @mmcgill829 ... | |
| Need a modern Class A monoblock, preferably half or compact chassis atmasphere, name or show me a link for three to consider, I am not against the technology but so far none really seem worthy to pursue. I did contact one mfg. recently on their brand new product... no response @sayas If you want something that... | |
| Need a modern Class A monoblock, preferably half or compact chassis @sayas Why do you want class A? If its for sound quality, there are class D amps now that are every bit the equal of class A. | |
| New expensive power cord for amp and no change in sound? Not buying it. The voltage drop across a few feet of power cable can't be more than a volt. This is insignificant compared to the normal variability of the supply fluctuations between 114 and 126 VAC. @noromance I've measured over 2 Volts, but ... | |
| Could Class D really be that good? @asctim I can't seem to convince that guy that what he's saying about me is wrong. 🙄 @ricevs This is not a discovery. Those that have listened, have known this since audio reproduction and measureing equipment were invented. Most things that mak... | |
| Solid state amp vs tube amps @marquis4099 The differences you usually hear have to do with how tubes and traditional class A or AB solid state amps make distortion. Quite literally the 'sonic signature' of any amp is its 'distortion signature'. I used the word 'traditional'... | |
| Could Class D really be that good? You just stated above that any modern op amp has no sound (will not change the sound). @ricevs The above statement is false. Here is what I actually said: Not to put too fine a point on it, but when you can change an opamp (if its modern, ... | |
| New expensive power cord for amp and no change in sound? @roxy1927 The reason you can hear changes with power cords has to do with the AC line Voltage drop across the cord. More expensive cables tend to have less Voltage drop. But how much this affects various bits of equipment is a different matter. S... |