128x128

atmasphere

Responses from atmasphere

Double down, good or bad?
Unsound, we got a Golden Ear Award for our MA-1 driving a set of Apogees. This is a zero-feedback tube amp BTW.Kirkus, its clear to me that your perspective is that of the Voltage Paradigm. As to papers on the subject, one was written by one of th... 
Double down, good or bad?
Kirkus, you are right in most of your posts and apparently either did not read something somewhere in mine or misinterpreted it. First, I'm not talking about clipping here- at all. I am well aware of the significance of the woofer in the box! The ... 
XLR waste of time ?
Jimjoyce25, the standard Neutrik will do the job. Its available in both silver and gold versions. There are of course exotic XLR connector varieties, but IMO/IME, if the balanced line is set up correctly, they don't make any significant difference... 
Phono stage for tube system - recommendations?
Jmcgrogan2, if what you say is true, then Lloyd has not spent a lot of time working with tubes! The 'unbalance' issue is literally a red herring. 
XLR waste of time ?
Nrenter, Its a fact that there are cable guys out there that have no idea how to execute balanced cables, especially ones for phono!Most arms that have a 5-pin connection are perfect balanced sources, as the wires are shielded by the arm tube itse... 
Double down, good or bad?
Magfan, voltage source / current source are Voltage Paradigm terms. A Current Source amplifier is one with a high output impedance. The Power paradigm term for this is 'power amplifier' since such amplifiers attempt to make constant power into all... 
Balanced tube preamps w/ remote to consider?
FWIW any older Atma-Sphere MP-1 can be optioned with the remote. 
Double down, good or bad?
Al, in the case of the B&W 802 you need to have 3 db more power into the 4 ohm woofer load as you do into the mids and highs because the woofers are 3 db less efficient. I am ignoring the effects of feedback here and doubtless there are amps t... 
which is better ? MC phono stage or MM+step-up ?
Yes, SUTs are susceptible to hum. If running direct- there are big differences in high gain phono sections too, so comparison is anything but a level playing field! 
XLR waste of time ?
XLRs are often better than the best of RCA ICs, no worries there. Plus- all cartridges these days are balanced sources. The advantage of a balanced input on the phono preamp is that you can set up the phono system and run the signal balanced.If yo... 
What is your favorite tube for a preamplifier ?
6SN7s are nice as they have a low microphonic aspect. They are great in line stages and can handle a lot of current so wide bandwidth is easy. Although they have less gain than 6DJ8/6922s or 6H30s, the reduced microphonics compared to those tubes ... 
CES in Las Vegas
A manufacturer or dealer can get you in for free- if you know one contact them about badges. T.H.E. Show will be two doors down at the Flamingo and it is easier to get into. A significant number of manufacturers will be there as well- T.H.E. Show ... 
Double down, good or bad?
Kirkus, it seems you got my point in your last paragraph. We could easily build an OTL with an output impedance of 0.1 ohms with enough feedback, but it would never sound right, and the lower output impedance would say nothing about what loads it ... 
Anybody with an expensive TT try this????
Mike, in order to get away with that, the same rules of compatibility with your arm apply- effective mass, mechanical resonance, that sort of thing. IOW you have to apply the same care in selection for your arm like you do with an expensive cartri... 
Double down, good or bad?
Unsound, I agree with you. I should point out that what you said in your last post is not anything I was suggesting. I think its nice if an amp measures well, if it also sounds good to the human ear.What I have found is that the physics of making ...