atmasphere
Responses from atmasphere
| Clipping triode or ultralinear Damaging a tweeter by clipping is far more common with underpowered solid state amps than tube!Unless you can state that you fried the tweeter using a tube amp, I wouldn't worry about it, but to answer the question directly, the above responses ar... | |
| which Audio Research pre-amp? A reasonable question a-s, the answer being ARC pre-amps have a certain cache' amongst audiophiles. My question is, why doesn't the op audition both the ARC pre's he is interested in at an ARC dealer? Doesn't trust his own judgment, but "knows"... | |
| Replacing my MFA Luminescence B2 preamp I can't think of why you would want to change out the MFA for a Coincident. They aren't built to the same scale. The tricky bit is that the Luminescence uses octal base tubes in the phono section, which are a bit difficult to get (6SL7s). If its p... | |
| balanced vs. unbalanced sound quality I'm guessing Johnson was referring to the signal path length within a balanced circuit, not within a balanced cable.Often the signal path within a balanced circuit is simpler. At least that is the case in our stuff. For example, in our preamps the... | |
| Krell Owners: Is XLR really superior to RCA? Also I’d read that the quality of cable was less important for balanced than single ended, but that’s not what I’ve found. Cheap cable is still cheap cable. Tried some off the shelf stuff and it was flat and un-engaging. Currently running Mogam... | |
| Atma-Sphere in CO? while we can test the tubes, that may not really give you the information you are looking for, we can test to see if it is working, and get some idea of the condition but this won't tell how it sounds or how much use they have had. In addition,... | |
| which Audio Research pre-amp? ?? Why does it have to be ARC? Is that the only preamp that will allow marital harmony?The Ayre has a balanced input, so a balanced tube preamp seems to be what you are after. FWIW, the ARC preamps while balanced, don't actually support the balanc... | |
| Problem related to Push-Pull or EL34? Tube amps with output impedances greater than 1 ohm will not have a flat response into a speaker's varying impedance. They will act as tone controls! So, choose your tube amp/speakers with this consideration in mind!While this is off topic, the... | |
| Converting stereo single ended to balanced mono? You could do this with some modification, but there really isn't a good way to do it otherwise. The problem is that you have to invert the signal to one channel in order for a balanced output to be produced from the pair of channels.One way do sol... | |
| balanced vs. unbalanced sound quality Professor Keith Johnson has said that the signal travels twice as far in a balanced cable and they present there own set of problems. That's pretty funny!If he really said this it suggests he doesn't know what he's talking about!!!Look at a singl... | |
| Phono cable advice. To suggest that small signal cables need no shield is an insult to electrical engineering and all of the hard work that goes into proper design and not just in cables but in any electrical components. Especially in today’s polluted world. I ran... | |
| Atma-Sphere in CO? If the 6SN7s get weak, the amp can sound a little sleepy or dead. Its worth it to make sure they are all good! | |
| Horns: Why don't they image well? I don't find that the older horns imaged as well. As horn designs improved with the advent of CAD, so did the imaging.But a lot has to do with what you hook up to them- and those older horn systems were designed for amps with higher output impedan... | |
| My Amp is Broken - Not Sure What to Do - Any Recommendations? I would look at the spec sheets of the new and old parts. The things to look for are maximum current, breakdown voltage, hfe. If those three things are right, then its likely no worries. Obviously there's a little bit of engineering to do all this... | |
| Atma-Sphere in CO? If it had rounded corners on the power supply cover its a Mk3 at least.Any idea of the condition of the tubes? The main reason we've found that people let go of our amps is that they don't realize how far downhill the tubes have gotten. The second... |