atmasphere

Responses from atmasphere

vinyl versus digital redux
@mijostyn   Its funny how much better a master digital file is than one that's been exposed to DSP! 
Amp repair cost — is this right?
Are you all referring to the ’same’ capacitors? Such a vast cost spectrum being cited. Ralph you build and repair audio electronics and would know. Just curious as to the wide variance of price. Apparently not! Snap caps are a *lot* less expensi... 
Amp repair cost — is this right?
Audiogon is a very strange place. I’m simply asking if this price is in the right range and getting some really strange responses that don’t answer that question.I don’t see that as unreasonable. If one cap has already failed and it has 18 caps in... 
Are there any tube amps that don't give off any---
No.But trust me on this one- I've seen it- a fan is a **LOT** quieter than an air conditioner! You can hardly tell its on, yet the installation I saw kept the room cool despite a pair of class A triode OTLs with 42 power tubes per channel making o... 
vinyl versus digital redux
Hm. One thing I don't see mentioned here is the issue of bandwidth. Any LP made since the dawn of the stereo era (1958) has potential bandwidth to over 40KHz. Bandwidth during playback has been in that realm for a while too- most phono preamps hav... 
Never Owned a Tube Amp and Want Advice
In the meantime, I set up my turntable.This is a Technics SL1200Mk 5 with an AT150MLX cartridge. Turntables, especially those with high output, can have a variety of issues causing sibilance. Make sure you have a low capacitance cable between the ... 
Are there any tube amps that don't give off any---
Why not just vent the heat out of the room? A ceiling vent isn't expensive to install and some dryer duct hose will send it out of the house with the help of an inexpensive low speed fan. Then air conditioning won't have any trouble keeping up; yo... 
Low power, class-A solid state and high impedance speakers
Assuming that the loudspeakers are sensitive enough not to suffer from the amp's lower power output, are there any downsides to doing this? Any other upsides besides lower distortion?No downsides, and an additional upside is it will probably run... 
Passive preamp issues or?
@renisnceman   You might try lifting the ground of the DAC to see if you are dealing with a ground loop. You do this by getting a ground cheater adapter for your its cord at the local hardware store and plugging the DAC into the wall using the ada... 
Passive preamp issues or?
If the amp really has a 1MegOhm input impedance, that is likely the problem- it will make it very sensitive to cables (and much more able to pick up hum from high impedance sources!). The input impedance isn't specified anywhere I've looked so thi... 
Who's using Harbeth with tubes, what speaker model and how many watts per channel?
@aj523In terms of getting a match to a low impedance load, yes. 
Thoughts on the most difficult instruments for speakers to reproduce?
One needs to be careful about conflating poor recordings with poor playback. They are two separate issues!Traditionally, the ability to discern the difference between an oboe and a cello playing in its higher registers has been a benchmark of fide... 
Who's using Harbeth with tubes, what speaker model and how many watts per channel?
i thought it is the nature of semiconductors/transistors that allow them to react faster and also their ability to pass more current without strain or overheating -- once again, given good power supply capability they are gating...separate questio... 
Passive preamp issues or?
so when I turn the volume up, the speakers hum, mildly— then as I turn the volume up all the way, well past safe levels, the hum disappears and  I just get white noise hiss- again, not that loud.  If it was a grounding issue would the hum be th... 
Desire to try tubes
The use of any SET requires careful speaker selection. This is because even a higher powered SET will have a fairly high output impedance. For more information take a look here:http://www.atma-sphere.com/en/resources-paradigms-in-amplifier-design....