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atmasphere

Responses from atmasphere

Cartridge loading
Let me know what you think now when that guy cracked it and explained why the input impedance is almost ZERO@chakster This statement isn't correct. The **virtual ground** is almost zero, not the actual input impedance. Its a bit tricky explaining ... 
Cartridge loading
What I experienced always is that at 100 ohms quality level cartridge performance is always better If your phono section has RFI sensitivity what you state above will be the case as I’ve maintained also on these threads. With regards to the load i... 
atmasphere 6as7g output tubes.
Once B+ is applied to a new tube, the preconditioning process is ended. So You don't ever apply B+ until the tubes have finished the preconditioning period.However once that is done you can apply B+ right away.  I've yet to see a GE that was trust... 
Cool running amplifier
Amps in cabinets is generally a bad idea unless provision is made for cooling. Even class D amps (the coolest running made) will make heat when you push them! Heat leads to failure so I would think about how to make the cabinet more amplifier frie... 
What is "break in" and what difference does it make? In amps? Preamps? Speakers? More?
Filter capacitors in amps and preamps have something called 'forming up' where they adjust to the operating voltages to which they are subjected, being electro-chemical devices. This takes some time and until that occurs the power supply will not ... 
Anyone done A / B listening to compare vintage stereo receivers with today’s Amps/Preamps?
Transistors have advanced since the 1970s. Back then it was a big deal if the output of the amp had complementary symmetry.The distortion of the 70s gear was often higher than that of later years and often higher than rated. But a lot of it doesn'... 
Watts and power
@listening99  Two 4 ohm speakers in parallel is 2 ohms. You really want to check with the amp manufacturer to see if its OK with a load like that! But generally speaking, the lower the load impedance, the higher the distortion of the amp- and that... 
Power/Current: How much is realistic?
I was always under the impression that it’s not really possible to overdrive speakers that require high current to drive This is in need of correction- you can overdrive any speaker if you have enough power!Now i just want to research options for ... 
Cartridge loading
res ipsa loquitur 
Subwoofers and Phase Question For You Sub Experts
A very illuminating study was conducted in which short-duration low frequency signals - including mere fractions of a cycle - were digitally created and played over headphones (to avoid room effects). Listeners were UNABLE to even DETECT the pr... 
Power/Current: How much is realistic?
That should work just fine. 
Cartridge loading
I’m not attacking him only asking for true proof/evidence of that " limit trace " that he spreads every where with out shows the evidence as foundation for.The quote above belies this quote:NO, I did not only ask for evidence and not more bla, b... 
Doge 8 Clarity: 12AT7 replacement for phono stage
@ atmosphere: Being the second owner of the unit, I'm not sure if I'm able to avail any warranty on the unit. Without any other matching tubes around, I may have to pony up with replacement tubes to see if the phono section's hiss issue I'm hav... 
Cartridge loading
I’m not attacking him only asking for true proof/evidence of that " limit trace " that he spreads every where with out shows the evidence as foundation for.Just to be clear, yes, Raul, you attack me at every opportunity. This is well known by ma... 
Watts and power
The Nuforce is stated to be suited to 8 ohms, not 4. The Moabs are efficient, running at a rated 98dB 2.83V@1m sensitivity If the speakers run easy, what am I doing to my 8ohm amp, were I to hook them up...?If you were playing two 8 ohm speakers s...