pch300

Responses from pch300

My stereo is haunted!!
Given that you have already switched out all stages and interconnects of your audio chain and still have the loud POP, the problem may be coming from external sources. Does the problem repeat later or only on power-up of your system? And to verify... 
Carver and Tube Life
Carver makes a similar claim for his most recent amps. The output tubes apparently are operated at a cooler temperature than other traditional tube amps. The output tubes do get hot to the touch, but not enough to cause a burn. The other tubes are... 
What would happen when you under Bias your tubes?
Luna, the bias is supposed to be set so that the tube is being used in the middle of its operating range, in a region that is the most nearly linear for input-output tracking. Bias it too low or too high and it becomes increasing non-linear at eit... 
Test and repair amp
@mikegris, depending on how much experience and knowledge you have in electronics, the first thing to keep in mind is *safety*, because tube amps can have lethal high voltages inside. Otherwise, get as much info on the amp, like schematics, part n... 
Capacitor
This really depends. With a value this high I have to assume it’s a low pass filter. If so it is likely to go to ground.@erik_squires,If the cap goes to ground, then it’s shunting all the frequencies above that driver’s cutoff to ground, essential... 
What is it you expect to hear from hifi gear that you have not yet?
How do you know what quality of the stream is, or of the original source of the digital stream? 
Equalizer for hearing loss
So far so good, for this much older "old-timer." Only the age-related reduction of high frequencies as a resident in the suburbs. I've read that such loss does not happen for those living far from such civilization noise, or at least not as much.I... 
Why is science just a starting point and not an end point?
Bob Carver accepted the amplifier challenge from Stereophile, many years ago, and won. He showed that he could duplicate the sound of an expensive amplifier chosen by Stereophile with one of his amplifiers appropriately modified to sound the same.... 
Speaker cone shape
to the OP,Let's go back to understand what physically is happening to the cone. The voice coil attached to a cone will move the cone when the voice coil moves forward and backward. The entire cone does not respond all at once. Instead, a compressi... 
The Sound of Speaker.
@OP,When I was a student, with limited funds, I bought inexpensive drivers and built my own speaker cabinets. I learned about the very basic stuff to make speakers which allowed me to use an inexpensive receiver and a turntable to play through the... 
Speaker Spike Philosophy
@linnvolk, I think you have asked some very good questions and proposed some workable approaches. I have used "spikes" under my floor-standing speakers. In my opinion, the sound was better after the spikes were used than before, particularly in th... 
Looking For Best Headphones
Maybe the OP can go to a store with a lot of headphones, or go to the CanJam event near you (if allowed under the current conditions) to try many headphone. Some will sound excellent, but be uncomfortable to wear. Some will sound decent and comfor... 
What is a good base for speakers
What you need is to keep the speakers from moving in the direction of what the drivers are moving, so that the drivers can push air without the cabinet fighting it. I believe the ADS are front firing drivers, which means you need to keep the cabin... 
Driver breakin period, what’s the science?
How does one tell for sure if the speaker's sound is really changing over time, and it's not due to things like variations in hearing over time, air temperature or pressure, mood, acclimatization to the new sound, etc.?A bench test can be performe... 
Single driver speakers. Are they worth considering ?
The OP asked a question, without specifics as to what is meant by "single driver" and "fullrange speaker". Seems like most responses discuss a dynamic speaker as a "single driver", and full-range speaker as s comparative well-known or accepted mod...