Since this thread has been neutered, we try to translate personal insults into somewhat technical arguments. As a relative newcomer you might wish to know.
Howy is right, for audio frequencies, most wires can be seen as linear circuits. C and L do not contribute to harmonic distortion, unless they C or L are frequency dependent. Show us that wire.
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What is the survival rate of red-green color blind electricians?
Otherwise, sure, size DOES matter. The Bard had no sense of audio.
Tastes vary on this thread. I wasn't referrring to her explicity as I rather like her, but more that one of the albums I picked up for research which has a very high reported DR is a shadows album, which is not something I would play regularly.
yes In Bob's case this was 89dB/W speakers which is what a lot of us have. CordellAudio.com - Home Entertainment Show 2007
Yes you have. I'm just intrigued on the differences.
Of course there is the question of how to measure dynamic contrast. George's example of a Mahler 8 with 70dB between softest and loudest being a prime example.
You do use rather a lot of cable...
Bruno proved that for balanced cables this can indeed be true as the different coloured wires often come from different dies. Mathematically can be shown to have an effect on long runs where the common mode pickup starts to matter. In the living room all bets are off.
Apparently they were just having fun there.😉
A perfectly fair remark for some types of loads, but not for the speaker. Which has a mobile system with a voice coil unevenly moving in a magnetic field, and whose voice coils experience periodic thermal stresses increasing their resistance to the beat of the music. That is, it is a non-linear load with a variable resistance, in addition, the musical signal itself is not at all sinusoidal, but jump-like closer to a rectangular shape. (Chapter 13 Integrated load resistance of the speaker, a reference guide to sound circuitry. Shkritek P., 1991). Also, the speaker impedance changes with frequency, as you already explained.
Due to the fact that the load is complex and non-linear in the load current, it reaches 40 A and even more at the peaks (Reference Guide for the Sound Circuit. P. Shkritek, 1991). Thus, the current through this loudspeaker is also non-linear with the peaks greater than 40A through the speaker. Even if the speaker cable has a very high quality and sufficient cross-section, it will still have its own resistance, inductance and capacitance. At the first stage, to make it easier for you and people to understand, we will imagine that this expensive speaker cable does not have inductance or capacitance, but it definitely has some resistance. Take, for example, the first Van Den Hul The Magnum Hybrid MKII speaker cable with a specific resistance of Ohm / m of 0.0028. When it is 2 meters longer from the amplifier to the speakers, its resistance will increase by two to 0.0056 Ohms. We multiply by a current of 40A, which creates a voltage drop of 0.224V. Recall that this current passed through a non-linear load and, accordingly, it is very non-linear, as this voltage is 0.224 V in accordance with Ohm's law. Considering the fact that at the terminals of the power amplifier, for example: NAD S200 Total harmonic distortion: 0.03%, the increase in distortion only due to the cable resistance at the speaker terminals increased by about 7.46 times. And all this without taking into account the influence of cable capacity and its inductance, which will significantly worsen the overall picture.
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What is wrong again, wrong letters? Look at other models and show your calculation here.
NADS200
Stereo Power Amplifier (2001)
Power output: 200 watts per channel into 8Ω (stereo), 700 watts into 8Ω (mono)
Frequency response: 2.5Hz to 80kHz
Total harmonic distortion: 0.03%
Damping factor: 200
Output current: 50A
Input sensitivity: 1.4V
Signal to noise ratio: 95dB
Speaker load impedance: 2Ω (minimum)
Dimensions: 450 x 180 x 406mm
Weight: 27kg
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40A over 8 Ohm would be 320 V.
Only to the extent that these are non-linear, (in the sense that they change with voltage or temperature as a function of voltage and frequency) they can contribute to non-linear distortion.
Only the non-linear part of the resistance can contribute to non-linear distortion. The same goes for capacity and inductance. I invite you to demonstrate that these non-linear L and C exist in the audio band.
In the extreme case you mention - 40 Amps which require a voltage of 320 to develop over 8 Ohms - the .224 V of loss in the Van Hull cable is < -60dB below the 320 V signal. Since it is linear with voltage, it does not add distortion, it only attenuates the signal with 60dB.
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Vacuphile, do you even read books?
40A is an example of a real load of an 8 ohm speaker with non-linear impedance rather than an 8-ohm resistor. Music is not a sinusoid. With a power of 200 W with an active load, the current is 7.1 A with a complex of 40 A in 8 Ohm loudspeakers.
And some amplifiers have harmonic distortion even less than 0.03% and even less than 0.01%.
40A is an example of a real load of an 8 ohm speaker with non-linear impedance rather than an 8-ohm resistor. Music is not a sinusoid. With a power of 200 W with an active load, the current is 7.1 A with a complex of 40 A in 8 Ohm loudspeakers.
And some amplifiers have harmonic distortion even less than 0.03% and even less than 0.01%.
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There is a reason the standard wire colors are black, white and green! The one who gave me the knowledge of the issue was 40-50!
The National Electric Code does not allow most loudspeaker cable to be thicker than 12 gauge. The thinking being if you are going thicker the power is above the safe limit and can if something goes wrong cause a fire.
G if you have a varying magnetic field in your loudspeaker from cone movement you are well into distortion. The reason why most high fidelity loudspeakers have low sensitivity is because the voice coil length is increased to avoid that.
The thermal voice coil resistance rise is the major effect. Voice coil centering is virtually a non-issue in virtually all profesional loudspeakers unless it causes a rub.
What is more of an issue is suspension behavior. That is why pros after repairing a cone transducer will power cycle it. That breaks it in to match others in the system.
Them there is the trans-flooby issue. Perhaps the most important issue in perceived loudspeaker perception.
It used to be an 8 ohm loudspeaker could dip as low as 4 ohms. The consumer electronics manufacturers had this minimum increased. But even 40 amps peak into 4 ohms would require 3200 watts. Not a lot of amplifiers can produce that. Even the profesional ones rated at 10,000 watts can't. (Watt rating escalation means that a 10,000 watt amplifier usually can deliver 1,250 watts into an 8 ohm load for .01 second!) (Good thing as there are no 2,500 real watt loudspeakers.)
Maybe leftpondian, But we have blue, brown and yellow/green.But still a lot around in the walls that is black and red which was not a good combination.
With a power of 200 W with an active load, the current is 7.1 A with a complex of 40 A in 8 Ohm loudspeakers. There are no kilowatts.
If we analyze the terminal amplifier circuits, then almost all high-quality amplifiers, such as NADS200 or Premiere or Technics 5000 Onkyo M-510 Grand Integra, Coda, Parasound A21, Dan d'Аgostino, all are designed for a current of at least 40 A and often exceed this value by two or more times. https://img.stereo.ru/news/2018/8/c634c92476ec0bac5f57391c89c78412.jpg
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Alas, without knowledge, even good things will not work.
Onkyo M-510 Grand Integra
Characteristics
Output power: 300 watts per channel into 8 ohms (stereo)
Frequency response: 1 Hz to 100 kHz
Total harmonic distortion: 0.005%
Damping Ratio: 300
Gain: 33.8 dB
Input Sensitivity: 1V
Signal to Noise Ratio: 120dB
Speaker load resistance: 4 Ω to 16 Ω
Dimensions: 507 x 264 x 512 mm
Weight: 72 kg
Onkyo M-510 Grand Integra - Manual - Stereo Power Amplifier - HiFi Engine
That is 50 volt rails and into the DC resistance of an 8 ohm loudspeaker it would not exceed 12 amps! In practice it would not exceed 8.5 amps with any modern loudspeaker.
Higher current rated amplifiers are designed to drive parallel reactive compensation networks. A really stupid approach although used by some.