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atmasphere

Responses from atmasphere

Backert Labs Rhumba preamp
The MP3 may be really good, but is currently out of my price range and also comfort (no. of tubes) range. @milpai The Rhumba is a line stage. If you get the MP-3 as a line stage, it only has 4 tubes. The remaining tubes you are probably thinking a... 
Help me pick a phono, pre and cart
@bpoletti It has to, Ohm's Law and such.How much it does so is not as well researched, but I've seen a good number of audiophiles do loading by ear- essentially dialing out brightness by using a potentiometer as the loading resistor and when they ... 
Help me pick a phono, pre and cart
The one thing I have learned is that you'll want a phono stage that is highly adjustable if you want to use a moving coil cartridge. Loading can make the difference in SQ. I was interested in the Ayre phono stage as well but it did not have the... 
MAC Autoformers?
I believe he meant that with an autoformer an amp can be designed with lax’ed parameters eg: that make it stable. And that an autoformer can then isolate it from the bad outside world speaker emf etc, that may make it go into oscillation or rin... 
Backert Labs Rhumba preamp
The hum you read about was not inherent in the preamp, but was caused by the higher output impedance of the preamp combined with poor interconnect cable layout between the preamp and amp. Once the guy on the stevehoffman site got the layout right,... 
Have Passive Preamps Finally Come of Age?
If a power amp has an input sensitivity of say 1v input to make it reach full wattage output (eg: clipping) There is no need for the preceding stage (whether it be a preamp or direct from the source) to put out any more than say 2v so long as i... 
Phono stage can minimize tics and pops on vinyl
I've not used my Discwasher in 20 years. I don't need it- a simple dust brush is all I use and that is to prevent dust buildup on the stylus. IOW I'm playing LPs free of ticks and pops with no need to clean them. 
Have cartridges been known to fail (Grado)?
Yes, just to be clear I would be very suspicious that something other than the cartridges is up.  
MAC Autoformers?
Why hinder the performance of a well designed solid state amp with an autoformer, unless it was a bad designed one to start with. A simple test is to put a well known Auto Former that’s used on OLT’s to make them "sort of work" into speakers th... 
Non-audiophile needs help with older system.
Here's a tip- if the bass of the turntable isn't as good as the digital, there's something wrong. IME its usually better, since vinyl usually isn't as compressed as CDs, since there's no expectation that the LP will be played in a car.  
Have Passive Preamps Finally Come of Age?
Many amplifiers overloaded with 2 volts ? Are we talking about power amplifiers being overloaded, or preamplifier sections being overloaded ? 30 volts output ? Al did answer this, I hope its now clear.Simply: With the sources feeding them, pream... 
Help me pick a phono, pre and cart
Most of the reputable tube dealers manually tested each NOS tube for low microphonics, low noise etc. Lucky people knows the difference between new and nos when it comes to the great tubes. I bet you have some decent NOS tubes yourself. Anyway it’... 
Running CDP directly into MC275??
^^ I've always felt an active sounded better too, and to the above comment I will add: 'better bass impact and extension'. 
Have Passive Preamps Finally Come of Age?
2 volts might be alright; try 4 volts on for size :)If you have 2 volts though, many amplifiers will be overloaded. 
What is the best OTL out there?
However I took atmospheres comments to apply to solid state as well but I could be wrong about that as I don't have much knowledge about solid-state here. My comments include solid state and class D as well. All amplifiers have lower distortion ...