A magnetic cartridge is a transducer that is used for playback in a turntable. It is used for the conversion of mechanical energy from the stylus of the record groove into electrical charges. The charges generated by the magnetic turntable cartridges are always amplified and converted to musical sound that is further transmitted to the loudspeaker.
Usually, they are made of a magnetic substance that exerts light pressure on the grove, thus improving its playback quality and reducing the rate of record wear. Moreover, the magnets help them to apply lighter tracking force, which essentially limits extent of grove destruction. Magnetic cartridges also have relatively lower rates of voltage output which requires large amounts of amplification.
Generally, a turntable cartridge is designed in a way that it incorporates various mechanism of working in attempts of improving its functionality. The main types of this kind of cartridge include the moving magnet and moving coil cartridges. A moving coil cartridge often has thin wires and a tiny electromagnetic generator used for attracting the needle and moving within the electromagnetic field of the permanent magnet.
The electromagnetic generator is used to produce small amounts of electric voltage since it has few windings of the thin wires. Therefore, it produces few micro-volts of the electric signals that are readily consumed by the loudspeaker noise. As such, a step-up transformer is usually used to boost the amplification of the moving coil cartridge in order to reduce the noise of the loudspeaker.
There are other types of moving coil cartridges, of high-output, that can be used to produce large amounts of electric voltage. Despite the fact that the moving coil kinds are tiny and relatively expensive, they are usually preferred for use by the audiophiles because they are perfectly designed for that. Moving magnet types on the other hand have styli cantilevers that are made of several magnetic materials, which constitute the electromagnetic generator.
The magnets are usually positioned between a pair of fixed coils and vibrate in response to the movement of styli on the record groove, thus inducing a current in the coils. Given the fact that the magnet is tiny, it is not attached to the generator in order to enable the stylus to follow the record groove with little tracking force. Moving magnet cartridges often use a set of different types of magnets that enable it to operate in a proper way.
The devices have moving irons and induced magnetic materials, which are attached to the cantilever of the stylus in order to enhance the movement of the irons. They as well have a bigger magnet that is positioned over the coils to generate the magnetic influx for its operation. Evidently, the moving coil and moving magnet cartridges have particular differences that have been used to evaluate their performances.
Moving coil turntable cartridges offer very low inductance, while the moving magnet types offer relatively high inductance and impedance. However, high inductance can negatively affect flatness of frequency and phase linearity. In such a situation, the moving coil cartridge would be preferable to moving magnet cartridge. Therefore, preference of the best cartridge for a turntable would entirely depend on the aforementioned factors, including cost, design, and inductance, among others.
Usually, they are made of a magnetic substance that exerts light pressure on the grove, thus improving its playback quality and reducing the rate of record wear. Moreover, the magnets help them to apply lighter tracking force, which essentially limits extent of grove destruction. Magnetic cartridges also have relatively lower rates of voltage output which requires large amounts of amplification.
Generally, a turntable cartridge is designed in a way that it incorporates various mechanism of working in attempts of improving its functionality. The main types of this kind of cartridge include the moving magnet and moving coil cartridges. A moving coil cartridge often has thin wires and a tiny electromagnetic generator used for attracting the needle and moving within the electromagnetic field of the permanent magnet.
The electromagnetic generator is used to produce small amounts of electric voltage since it has few windings of the thin wires. Therefore, it produces few micro-volts of the electric signals that are readily consumed by the loudspeaker noise. As such, a step-up transformer is usually used to boost the amplification of the moving coil cartridge in order to reduce the noise of the loudspeaker.
There are other types of moving coil cartridges, of high-output, that can be used to produce large amounts of electric voltage. Despite the fact that the moving coil kinds are tiny and relatively expensive, they are usually preferred for use by the audiophiles because they are perfectly designed for that. Moving magnet types on the other hand have styli cantilevers that are made of several magnetic materials, which constitute the electromagnetic generator.
The magnets are usually positioned between a pair of fixed coils and vibrate in response to the movement of styli on the record groove, thus inducing a current in the coils. Given the fact that the magnet is tiny, it is not attached to the generator in order to enable the stylus to follow the record groove with little tracking force. Moving magnet cartridges often use a set of different types of magnets that enable it to operate in a proper way.
The devices have moving irons and induced magnetic materials, which are attached to the cantilever of the stylus in order to enhance the movement of the irons. They as well have a bigger magnet that is positioned over the coils to generate the magnetic influx for its operation. Evidently, the moving coil and moving magnet cartridges have particular differences that have been used to evaluate their performances.
Moving coil turntable cartridges offer very low inductance, while the moving magnet types offer relatively high inductance and impedance. However, high inductance can negatively affect flatness of frequency and phase linearity. In such a situation, the moving coil cartridge would be preferable to moving magnet cartridge. Therefore, preference of the best cartridge for a turntable would entirely depend on the aforementioned factors, including cost, design, and inductance, among others.
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