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Approximately how much does a Onebox audio amplifier cost?
If one were interesting in purchasing a Onebox audio amplifier, it would depend on where it is purchased from and what size. They range from a few hundred dollars to a few thousand.
What are practical applications of a transformer coupled amplifier?
Well the purpose of the transformer in an amplifier is impedance matching. Lets say the transformer is on the input of a audio amp. Now the amp circuitry has an input impedance (this is important because matching the impedance gives us maximum power transferred from the input signal source to the amp circuit, and that increases performance) and a microphone has an output impedance. So if the microphone is 10,000 ohms and the amp circuit is 500 ohms then the transformer is designed to transform 10,000 ohms to 500 ohms for better signal transfer. If the trans former is on the output of an amplifier the trans former transforms the output impedance of the of the power amp circuit to the input impedance of the load. If the output is a speaker (usually 8 ohms ) and the output impedance of the amp circuit is 1000 ohms then for maximum power transfer the transformer trans forms 1000 ohms to 8 ohms. This was the case using electron tubes. Now with transistors, amplifier circuits can be built with lower output impedances (common collector circuit in a class B power amp) so the costly transformer can be eliminated. Also Audio transformers are made slightly different in design than power transformers. Ausio transformers are designed with higher resistance in the windings to enable a wider frequency response where as power transformers are designed with much lower resistance to keep heating minimized while passing only one power frequency (60 hertz) at large amounts of power. Roger nsc@psu.edu
Is it possible to use class c amplifier in FM transmitter?
Technically possible, but not something you want to do. Once the carrier has been AM modulated, you need to handle it tenderly after that. Specifically, distortion has to be prevented, because distortion means new frequencies are introduced into the package, which makes the AM signal wider in occupied bandwidth ANDmakes AM sound terrible. Preventing distortion means the package can only be handled with 'linear' stages, and a Class-C stage is possibly the most non-linear kind of amplifier there is, since it's completely cut off for part of each RF cycle. By the way, this is the reason that AM is normally modulated in the RF power amplifier ... the last stage before the antenna. It would be a lot cheaper and easier to modulate at low level ... where much less audio power would be required ... and then RF-amplify the package for transmission, as is done in FM. But AM is so sensitive to distortion that it takes too much TLC to power-amplify it once it's been modulated. So amplifying (or frequency converting) are generally avoided after AM has been modulated.
Can you play 8 ohm speakers on a 16 ohm amp?
There is no 8 ohm solid state amp. Really! The output impedance of such an amp will be arround 0.4 ohms. Scroll down to related links and look at "Interconnection of two units- Voltage Bridging - Zout < Zin".You can, as long as the amp's impedance is much lower to the speaker(s) total ohm load you're fine. We have never impedance matching there.
If you replace a 4 ohm speaker with an 8 ohm speaker can the amplifier blow the speaker?
A1: The output impedance of a power amplifier is always less than 0.1 ohms. There are no 4 ohm amplifiers on the market! A2: I actually just bought a new car radio/CD player that specifically shows 4 ohm speakers on the sticker. It is designed to work optimally with 4 ohm speakers. If you use 8 ohm instead, it will work, but you will not get the full power output that is specified. The amp can only kick out so much voltage and so much amperage - if it is designed for 4 ohm speakers, and 200 watts (stereo, so 100 watts per speaker), it can supply 20 volts (P = V^2 / R). If you used 8 ohm speakers to this amplifier, each speaker would only get 50 watts powered at full output voltage. Alternatively, if it is designed for 8 ohm speakers and 100 watts per speaker, it can provide 40 volts. If you used 4 ohm speakers instead, each speaker could be given 200 watts at 40 volts, resulting in severe overheating and damage to the amplifier.
What is the best kind of amp to just power a sub?
Subwoofers draw a lot of current when played at louder volumes. Thus it is either preferable to use an amplifier which can produce as much RMS (not peak) power as the subwoofer's power rating, or to be sure not to overdrive the amplifier since this produces audio distortion. Audio distortion can burn out the voice coil within a speaker.
Approximately how much does a Onebox audio amplifier cost?
If one were interesting in purchasing a Onebox audio amplifier, it would depend on where it is purchased from and what size. They range from a few hundred dollars to a few thousand.
How much money does a Class T amplifier cost?
A Class T amplifier will typically cost around $20 to $40. The Class T amplifier is a small amplifier that produce a great amount of audio volume for it size.
What is the purpose of an audio amplifier in a car?
pretty much A to provide more power to speakers if it is a 2 channel or 4 channel or B provide power to one or more subwoofers kind of general question if you are more specific i can refine my answer more
How much power does the Crunch Power Zone P11002 2-Channel Car Amplifier take?
This amplifier will consume the 12volt power standard in all cars. t will require more amperes as the volume is increased.
What is low level AM modulator?
Historically, AM modulation has always been applied to the final power amplifier stage of the transmitter, just before it goes to the antenna. The reason for doing it this way is that once it's modulated, the composite signal can't be handled by any non-linear devices; any non-linearity generates new frequencies, which would have the effect of introducing audible distortion into the modulated signal.The disadvantage of AM-modulating the final amplifier stage is that doing so requires audio power equal to 50% of the carrier power ... if you're running a 50 KW AM radio station, you need 25 KW ( ! ) of clean audio to modulate it with. You know what 100 watts of audio for your Home Theater or your car costs, so you can imagine what 25 KW of broadcast-quality audio, or even 5 KW, must cost.Low level modulation means modulation applied to a low-power stage before the power amplifier boosts it to the full transmit power level. That's obviously a great benefit, because you don't need nearly as much audio power, so the audio stages are much less expensive. BUT ... it means that every stage after modulation must be a highly linear stage, in order to avoid distortion. So now, instead of a husky Class-C final power amplifier, it has to be a Class-A (I think maybe Class-AB also works). Class-A for a final means much lower efficiency, so it has to be bigger, and use more DC power supply than the old Class-C needed, in order to send the same power up to the antenna. So it's a cost trade-off.
What is complementary symmetry power amplifier?
A full and true "quasi complementary symmetry power amplifier" is an audio amplifier whose power output section is typically comprised of 2 of the same NPN output transistors, (generally matched) and 2 of the same PNP or NPN driver transistors, (also generally matched). Driven by dual matching + & - DC voltage power supply voltages. With the exception of the bias control circuit components, each half of the output circuit are exact mirror images of one another. Each half of the circuit amplifies the positive and negative half cycle of the audio signal. The theory is, "it is much more likely to perfectly match the performance of each half cycle of the amplifier by using this circuit design criteria. Only the most esoteric amplifier manufactures used this design in the late 60's and 70's.
Which Amp has the most features and power for my money?
The MA Audio 1000-watt 2-Channel MOSFET Car Amplifier offers all of the high end features fround on much more expensive amps for a fraction of the price. With 1000 Watts of power, it also is capable of excellent performance, and is a great option for the money.
How much Ampere current is required by Sony amplifier 350watt for playing JBL Bass tube?
The amp and bass tube should both have a label on them which indicates their power input, both in voltage and amperage. Go with those guidelines.
When a pnp transistor is connected in a circuit you can be used as a power amplifier because?
the out put voltage will be much grater then the input voltage.
What is the function of exciter in transmitter?
The exciter is really a very small transmitter. It produces the exact kind of signal that the transmitter makes, except that its power is too low to be of much use. In the transmitter there is an amplifier that boosts this low power to a high level so that it can reach farther. A classical design example is an FM transmitter. A small exciter cabinet contains an audio input section, and RF oscillator and modulator, and a small power amplifier of perhaps 10 watts, and a small power supply to run these things. This is the exciter. The audio feed is sent into the exciter and an FM signal comes out. If you were close to the exciter with your receiver, and the exciter were connected directly to the radio antenna, you could listen to the station just fine. But 10 watts will only go a few miles. To cover a small town, you might need 1000 to 10,000 watts, or for a large city, you could use 100,000 watts. The transmitter therefore includes, besides the exciter cabinet, a much larger cabinet, or set of cabinets, containing a substantial power supply and amplifier to boost the exciter's power output to the proper level. It is this high-power output that is fed to the antenna.
Why do speakers blow?
There are only two ways a speaker can blow.THERMAL DAMAGE - a few examples:- Too much power applied long term.- amplifier ran into clipping (distortion, amplifier trying to produce more power than it can)- problematic amplifier producing DC voltage at it outputsMECHANICAL DAMAGE - a few examples:- too much peak power - driver over excursion (the coil can hit the back magnet structure and smash itself or tear the cone or surround)- no high pass frequency - driver over excursion
