Dear Rual, great, now you are saying you could feel it. I just don't know how you can feel lower distortion! I can understand if you say you can hear it, but feeling the distortion? How does it feel actually?
No matter, now that you can feel it, then it gets back to the original issue. If you can feel it, then the air-borne vibration will also be transmitted to your turntable system, as there is no barrier, causing feedback and distortion. This is just physics!
So much for the claim that your system has lower distortion than anyone else! |
Dear @thekong : All human beens can hear and feel distortions. Distortions comes from everywhere in our day life ( not only audio. ). In audio music comes along distortions of every kind and as music the distortions comes along its harmonics/overtones.
Do you think that when we feel a low bass SPL what we feel is only " music "?, no my friend always comes with distortions generated in the system/room. Problem is that you are unaware of almost any kind of distortions at any frequency range and you can't detect it because the poor resolution of your system and because you don't know what to look for ! ! !
In the other side, I never posted here or every where that my system has lower distortions than anyone else. You did it.
What I can tell you is that my system/room has lot lot lower distortions than yours.
It's useless to continue talking when exist a to high differences on audio ignorance levels between two persons as you and me. It's useless that you try to find out real arguments to prove I'm wrong when you can't be sure: I'M NOT. Period.
Re-read carefully this that are not my words but other gentleman ones:
"""
""" This makes me think some people do like pleasant distortion . Remember ignorance is bliss until you have heard the difference . """
Btw, it's not your culprit that very low audio knowledge level you have because as all of us you learned and still do through that corrupted AHEE. You are a clear example of the damage AHEE did it and does.
Regards and enjoy the MUSIC not DISTORTIONS,
R.
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In the other side, I never posted here or every where that my system has lower distortions than anyone else. Dear Raul, good, then we have no disagreement. What I can tell you is that my system/room has lot lot lower distortions than yours. I really have no problem with that, if it is true, as I have never posted that my system has low distortion. The problem that I can see is you can't prove it! I don't think you have any idea on the distortion level of your complete system/room. Have you compared the sound signal at your listening seat, with the signal from the phono/cd output by testing equipment? I bet not! Then you have to rely on your highly trained ears, but they couldn't even detect the distortion caused by the airborne feedback to your turntable system. I did it using Telarc 1812, Dafos and Firebird tracks not at 83db normal SPL but at 97dbs ( at seat position. ) with 109db on peaks and you know something: I can’t detect any vibration/resonance because that air borne. |
Dear @thekong : I can't detect it due to that glorious so low distortions in my today system/room.
Yes, I know you can detect it in your system in the same way I detected it in the past, not today ( fortunatelly. ).
You need to learn several audio subjects and do several drastic changes in your system/room to approach or even or surpass what I'm living today that you can be sure will improve in the near future.
Talk to me when you be " there ". Futile that you continue doing through this thread. You have nothing to help enrich all other people knowledge levels. Stop all those boring posts.
Regards and enjoy the MUSIC not DISTORTIONS,
R. |
Dear Raul, The below summary comes from the IEEE, not the "AHEE", your fictional bugaboo. Note the first bullet point under the heading "Transistors-Disadvantages". I don't want to go back and forth with you any longer. You are entitled to your listening preferences, whatever they may be, but you are not entitled to create your own set of facts. Vacuum tubes – Advantages - Highly linear without negative feedback, specially some small-signal types
- Clipping is smooth, which is widely considered more musical than transistors
- Tolerant of overloads and voltage spikes
- Characteristics highly independent of temperature, greatly simplifies biasing
- Wider dynamic range than typical transistor circuits, thanks to higher operating voltages
- Device capacitances vary only slightly with signal voltages
- Capacitive coupling can be done with low-value, high-quality film capacitors
- Circuit designs tend to be simpler than semiconductor equivalents
- Operation is usually in Class A or AB, which minimizes crossover distortion
- Output transformer in power amp protects speaker from tube failure
- Maintenance tends to be easier because user can replace tubes
Vacuum tubes – Disadvantages - Bulky, hence less suitable for portable products
- High operating voltages required
- High power consumption, needs heater supply
- Generate lots of waste heat
- Lower power efficiency than transistors in small-signal circuits
- Low-cost glass tubes are physically fragile
- More prone to microphonics than semiconductors, especially in low-level stages
- Cathode electron-emitting materials are used up in operation, resulting in shorter lifetimes (typically 1-5 years for power tubes)
- High-impedance devices that usually need a matching transformer for low impedance loads, like speakers
- Usually higher cost than equivalent transistors
Transistors – Advantages - Usually lower cost than tubes, especially in small-signal circuits
- Smaller than equivalent tubes
- Can be combined in one die to make integrated circuit
- Lower power consumption than equivalent tubes, especially in small-signal circuits
- Less waste heat than equivalent tubes
- Can operate on low-voltage supplies, greater safety, lower component costs, smaller clearances
- Matching transformers not required for low-impedance loads
- Usually more physical ruggedness than tubes (depends on chassis construction)
Transistors – Disadvantages - Tendency toward higher distortion than equivalent tubes
- Complex circuits and considerable negative feedback required for low distortion
- Sharp clipping, in a manner widely considered non-musical, due to considerable negative feedback commonly used
- Device capacitances tend to vary with applied voltages
- Large unit-to-unit variations in key parameters, such as gain and threshold voltage
- Stored-charge effects add signal delay, which complicates high-frequency and feedback amplifier design
- Device parameters vary considerably with temperature, complicating biasing and raising the possibility of thermal runaway
- Cooling is less efficient than with tubes, because lower operating temperature is required for reliability
- Power MOSFETs have high input capacitances that very with voltage
- Class B totem-pole circuits are common, which can result in crossover distortion
- Less tolerant of overloads and voltage spikes than tubes
- Nearly all transistor power amplifiers have directly-coupled outputs and can damage speakers, even with active protection
- Capacitive coupling usually requires high-value electrolytic capacitors, which give inferior performance at audio-frequency extremes
- Greater tendency to pick up radio frequency interference, due to rectification by low-voltage diode junctions or slew-rate effects
- Maintenance more difficult; devices are not easily replaced by user
- Older transistors and ICs often unavailable after 20 years, making replacement difficult or impossible
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