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∙ 12y ago
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∙ 12y agoPhase
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Which distortion in produce in class a amplifier?
The so-called "Class-A" amplifier is the configuration with the least distortion. Active stages are biased to operate within the linear portion of their characteristics, and drive is controlled to avoid saturation or cutoff. Any remaining distortion is due exclusively to unavoidable non-linearities in components.
What is the advantage of high level modulation over low level modulation?
Low level modulation: Class B (75%max) power amplifiers are used which offers better quality modulation i.e low distortion probability. Minimize generation of harmonics. The advantage of using a linear RF LP amplifier is that the smaller early stages can be modulated, which only requires a small audio amplifier to drive the modulator. High level modulation: Class C (90%max) power amplifiers are utilized which improves greatly the efficiency of the transmitter but low in quality i.e higher distortion level is expected. A large audio amplifer will be needed for the modulation stage, at least equal to the power of the transmitter output itself. Traditionally the modulation is applied using an audio transformer, and this can be bulky. Direct coupling from the audio amplifier is also possible (known as a cascode arrangement), though this usually requires quite a high DC supply voltage (say 30V or more), which is not suitable for mobile units.
What are the least efficient of class of amplifier?
class b amplifiers as for class b amplifier the 'Q' point is near to cut of region.
After market replacement amplifier for infinity stereo amplifier in 2001 sebring coupe?
It is possible but impractical and may not be economically feasable. The labor fee to JUST to remove factory connectors and replace them with industry standard connectors would be cost-prohibitive, even with a factory schematic. Then you have to pay for system design and integration after that. It might be more economical to have the entire audio system replaced with an aftermarket system installed by car-audio professionals. If you still feel the need to replace the factory amplifier try to locate it's schematic by factory part number first then show that to some local electronics tecnicians who may be able to tap in to the original circuits for you. At least in this way you can do your own feasability study at minimal cost for the price of buying the schematics and presenting them for estimates. I am about to tackle a similar project on a Sebring convertible who's power amp took a bath and self-destructed afterwards. It looks like about a full week's work to me. GOOD LUCK.
How do you convert sound signals to binary?
By using an analog to digital conversion. To achieve this, samples of the waveform are taken at regular intervals. The human ear is capable of hearing audio frequencies up to 20 KHz, thus the sampling frequency needs to be at least twice as high in order to reproduce the highest frequencies without introducing too much distortion. Typically, samples are taken at a rate of at least 44,100 samples per second per channel for CD quality audio. The amplitude of each sample is then scaled and converted to a signed integer. CD quality audio uses 16 bits per channel thus the waveform amplitudes are scaled to integers in the range -32,767 to +32,767. Thus CD quality stereo audio consumes 2 * 44,100 * 16 bits every second, which is 176,400 bytes per second. Thus 60 minutes of audio consumes approx. 605 MB.
Which distortion in produce in class a amplifier?
The so-called "Class-A" amplifier is the configuration with the least distortion. Active stages are biased to operate within the linear portion of their characteristics, and drive is controlled to avoid saturation or cutoff. Any remaining distortion is due exclusively to unavoidable non-linearities in components.
What is the condition for maximum transfer theorem?
For maximum power transfer the load resistance should be equal to the source resistance.An often misunderstood theorem. It applies strictly where one wishes maximum power transfer.It was misused for example in early power systems by trying to match the generator resistance to the load resistance.And it has little application in audio systems, where Power is much less important than Distortion. [for least distortion, the output impedance of the amplifier should be less than 10% of the impedance of the load.]
What is the advantage of high level modulation over low level modulation?
Low level modulation: Class B (75%max) power amplifiers are used which offers better quality modulation i.e low distortion probability. Minimize generation of harmonics. The advantage of using a linear RF LP amplifier is that the smaller early stages can be modulated, which only requires a small audio amplifier to drive the modulator. High level modulation: Class C (90%max) power amplifiers are utilized which improves greatly the efficiency of the transmitter but low in quality i.e higher distortion level is expected. A large audio amplifer will be needed for the modulation stage, at least equal to the power of the transmitter output itself. Traditionally the modulation is applied using an audio transformer, and this can be bulky. Direct coupling from the audio amplifier is also possible (known as a cascode arrangement), though this usually requires quite a high DC supply voltage (say 30V or more), which is not suitable for mobile units.
Do the planet have least distortion?
The planet gon do what it do, baby! CHA CHA!
What are the least efficient of class of amplifier?
class b amplifiers as for class b amplifier the 'Q' point is near to cut of region.
Which integrated amplifiers are the least likely to fail?
I think that wpould be Yamaha AX497 Integrated Amplifier.
What is the map projection with the least amount of distortion near the pole?
A Globe. It can be an exact scale model of the earth!
What audio formats are compatible with the psp?
The PSP can play at least MPEG-1/2 Audio Layer III, MPEG-2/4 Advanced Audio Coding, and possibly others.
What happens if you connect impedance speakers which are 40 w RMS and 20 0w MAX to a 30 w impedancece amplifier?
This question is slightly confused in its construction. Impedance and Wattage are references to two separate electronic variable measurements.Impedance is the measurement of a coil's reactive resistance to an AC signal and is defined in henry (symbol H). Impedance can also be referenced in ohms (symbol Ω). Industry standard audio speaker input impedance is typically 4 or 8Ω. Audio amplifiers' outputs are also rated for impedance and usually designed to be mated with industry standard speaker input impedances. You want to try to make sure these two values are the same: 8Ω speaker on an 8Ω amplifier, 4Ω speaker on a 4Ω amplifier, or if they have to be mismatched, an 8Ω speaker on a 4Ω amplifier.Wattage is the measurement of the power rating of some electronic component and is defined in watts (symbol W). A speakers' wattage rating is the amount of power it can accept without being damaged. An audio amplifiers' wattage rating is the amount of power it can produce without being damaged. You want to be sure to have a higher wattage rated speaker connected to a lower wattage rated amplifier.For the usage of 40W speakers connected to a 30W amplifier, neither component will be damaged in this configuration. However, if the ratings were the other way around, 30W speaker on a 40W amp, the speaker could be damaged if the amplifiers' power (volume control) is turned up all the way. At the very least, if a 30W speaker is on a 40W amplifier, you will be able to hear distortion at max volume because the speaker is clipping the tops of the higher amplifier power signal peaks.
Compare high level modulation and low level modulation?
IN LOW LEVEL MODULATION THE MODULATING SIGNAL IS APPLIED NEARER THE CARRIER OSCILLATOR N IN HGH LEVEL MODULATION MODULATING SIGNAL IS APPLIED AT OUTPUT OF FINAL POWER AMPLIFIER OR FAR FROM CARRIER OSCILLATOR... IN OTHER WORDS :::: IN HAIGH LEVEL MODULATION THE AF SIGNAL IS APPLIED TO COLLECTOR OR PLATE AS THEIR RESPECTIVE DEVICES..... N IN LOW LEVEL MODULATION AF SIGNAL IS APPLIED AT BASE OR GRID IN TRANSISTOR AND TUBES RESPECTIVILY IN LOW LEVEL MODULATION THE MODULATING SIGNAL IS APPLIED NEARER THE CARRIER OSCILLATOR N IN HGH LEVEL MODULATION MODULATING SIGNAL IS APPLIED AT OUTPUT OF FINAL POWER AMPLIFIER OR FAR FROM CARRIER OSCILLATOR... IN OTHER WORDS :::: IN HAIGH LEVEL MODULATION THE AF SIGNAL IS APPLIED TO COLLECTOR OR PLATE AS THEIR RESPECTIVE DEVICES..... N IN LOW LEVEL MODULATION AF SIGNAL IS APPLIED AT BASE OR GRID IN TRANSISTOR AND TUBES RESPECTIVILY
In geography what does the word distortion mean?
It means that if you take earth and make it flat, there are some parts that are not shown or ripped, which makes the people draw a distortion of what it should look like. The north and south pole are the most parts that are ripped, which make most of that part of the map distorted, while the equator has the least distortion.
What televisions work for PlayStation 3?
Any that have at least a video and audio plugs
