The final volume to be achieved with an amplifier is dependent on other factors. A crucial factor is the efficiency of a speaker and the construction of housing. An increase in efficiency by 6 dB is achieved through a higher sound pressure level than the doubling of the power of jazz guitar amplifiers and can also significantly influence the change of frequency response dynamics, and tonal character. A speaker with 10 dB higher efficiency roughly doubles the perceived loudness.
Guitar speakers typically have pronounced resonances; the speakers are hung tough and are less attenuated by the high source resistance of tube amplifiers. In contrast, hi-fi speakers convey music signals but do not have their own sound. The resonance behavior of the often open-back wooden housing is another reason for the lower attenuation and the warm sound with pronounced mid-shift. The output stages of tube guitar amplifiers operate mainly in AB mode, that is, it uses one tube to amplify the positive or negative half-wave (push-pull).
They are well suited for practice and game locations without AC power supply. Some combos come with a headset, such as the Rockman, which was developed by Tom Scholz, founder of the rock band Boston, in the 1980s. In traditional amps, there are numerous variations that form pre and power amp of units. These are usually mounted in a 19-inch rack systems. In tube amplifiers, signal electron tubes maybe used.
For example, the speaker system usually consists of eight and 15-inch speakers so is a typical Marshallbox with 4 speakers, each equipped with 12-inch and loaded with 100 to over 400 watts RMS power. In many devices, a so-called reverb (spring reverb) is installed for generating artificial reverberation.
Chance of additional effects such as chorus and tremolo can be integrated. Guitar amps come in various power levels of about 2 watts (Roland Microcube) reaches over 350 watts (Marshall Mode Four) output power. Greater power outputs are not useful in general, as in bigger stage installations, the instruments are transmitted via the PA system.
A non-linear distortion of the signal is desired in certain types of pop music, especially in rock music and is achieved by selectively overdriving the guitar amplifier or individual amplifier stages within the guitar amp. The override of a precursor is described by manufacturers as distortion, overdriving the output stage is referred to as overdrive. It can be used in combination; it influences the signal chain. The distortion can also occur outside of the guitar amp in upstream effectors, generally through a distortion box.
This construction was popular in the seventies, when transistor output stages with the sturdiness of best tube amps were still difficult to achieve, but enabled greater flexibility in the input and tone control stages. However, tube amps are more expensive than transistor amplifiers with the same output because of required transformers.
In some cases, digital signal processors (DSPs) are used to simulate the behavior of tube amplifiers on mathematical models. They are also known as modeling amps. Nowadays, there are numerous guitar amplifiers that use this method of sound production. Because of greater flexibility and range of sounds, this amp is replacing the classic guitar amps. Since 2006, a new generation of guitar amp simulators provides many musicians with advanced acoustic capabilities. Some equipment employ high quality analog-to-digital converters, and processors of high computing power. The dynamics of classic guitar amp is simulated with the help of fractal algorithms.
Guitar speakers typically have pronounced resonances; the speakers are hung tough and are less attenuated by the high source resistance of tube amplifiers. In contrast, hi-fi speakers convey music signals but do not have their own sound. The resonance behavior of the often open-back wooden housing is another reason for the lower attenuation and the warm sound with pronounced mid-shift. The output stages of tube guitar amplifiers operate mainly in AB mode, that is, it uses one tube to amplify the positive or negative half-wave (push-pull).
They are well suited for practice and game locations without AC power supply. Some combos come with a headset, such as the Rockman, which was developed by Tom Scholz, founder of the rock band Boston, in the 1980s. In traditional amps, there are numerous variations that form pre and power amp of units. These are usually mounted in a 19-inch rack systems. In tube amplifiers, signal electron tubes maybe used.
For example, the speaker system usually consists of eight and 15-inch speakers so is a typical Marshallbox with 4 speakers, each equipped with 12-inch and loaded with 100 to over 400 watts RMS power. In many devices, a so-called reverb (spring reverb) is installed for generating artificial reverberation.
Chance of additional effects such as chorus and tremolo can be integrated. Guitar amps come in various power levels of about 2 watts (Roland Microcube) reaches over 350 watts (Marshall Mode Four) output power. Greater power outputs are not useful in general, as in bigger stage installations, the instruments are transmitted via the PA system.
A non-linear distortion of the signal is desired in certain types of pop music, especially in rock music and is achieved by selectively overdriving the guitar amplifier or individual amplifier stages within the guitar amp. The override of a precursor is described by manufacturers as distortion, overdriving the output stage is referred to as overdrive. It can be used in combination; it influences the signal chain. The distortion can also occur outside of the guitar amp in upstream effectors, generally through a distortion box.
This construction was popular in the seventies, when transistor output stages with the sturdiness of best tube amps were still difficult to achieve, but enabled greater flexibility in the input and tone control stages. However, tube amps are more expensive than transistor amplifiers with the same output because of required transformers.
In some cases, digital signal processors (DSPs) are used to simulate the behavior of tube amplifiers on mathematical models. They are also known as modeling amps. Nowadays, there are numerous guitar amplifiers that use this method of sound production. Because of greater flexibility and range of sounds, this amp is replacing the classic guitar amps. Since 2006, a new generation of guitar amp simulators provides many musicians with advanced acoustic capabilities. Some equipment employ high quality analog-to-digital converters, and processors of high computing power. The dynamics of classic guitar amp is simulated with the help of fractal algorithms.
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