Guitar amplifiers were originally invented to allow the guitar to be played louder in orchestras and ensembles. Initially, it was crucial to amplify the instrument to higher volumes – today, however, the guitar amplifier is an integral part of an electric guitar setup, significantly contributing to sound shaping. While early guitar amplifiers were dominated by tube technology, guitarists today can choose from a vast range: amplifiers for electric guitars come in various forms – as combo amplifiers, heads plus guitar cabinets, or fully digital modeling amps, as software plug-ins in audio computers, and even as smartphone apps. Sound quality and playability are always at the forefront. The same applies to bass. However, to achieve a proper bass sound, a bass amplifier should be used, as both the amplifier circuit and the bass cabinet are designed for the lower frequency range – guitar amplifiers are not optimal for this purpose.
The tube circuit remains the sound ideal for electric guitar amplifiers. This is due to the special amplification properties of vacuum tubes, which positively impact sound development when playing the guitar. While transistor circuits increase the amplification of the guitar linearly up to hard clipping, distortion (preamp) and overdrive (power amp) in tube circuits start early and very smoothly, emphasizing even harmonics. This creates the much-loved crunch and distortion sounds that have been popular with guitarists for decades. The wide selection of tube heads and combo amplifiers, available in all power classes, from 1-watt practice amps to full-stack powerhouses, confirms this preference for vacuum tubes.
In the last decade, amp modeling of tube circuits, amps, and entire signal chains, consisting of stompbox effects, amp, speaker, and microphone, has greatly advanced and significantly changed guitar playing. What is possible today, thanks to modern DSPs (digital signal processors), is impressively demonstrated by the Kemper Profiler, which not only emulates a specific selection of effects and amplifiers but is also capable of analyzing and replicating any devices and signal chains. Amp modeling technology has now been incorporated into many heads and combo amps. The DSP can serve solely for generating effects such as reverb, chorus, or tremolo, or it can also replicate tube preamps and power amps. The high quality that modeling amps have achieved in recent years has convinced many guitarists. Modeling amps are an absolute enrichment of a guitarist's expressive possibilities, both in the studio and on stage, as they can flexibly replicate the sound behavior of various amplifier concepts.
Although amp modeling is flexible and sounds very authentic with any electric guitar, many guitarists still swear by the tried-and-true tube technology. Thanks to companies like Blackstar, Fame, and Behringer's Bugera brand, tube and hybrid amplifiers are now available even on a small budget.
If you want to upgrade or change the sound of your guitar amplifier, you can significantly influence the basic character and sound behavior by changing tubes or speakers. The rich selection of special guitar speakers, each replicating the sound of popular historical combos and stacks, offers many opportunities to achieve the desired sound.
Of course, in the MUSIC STORE guitar shop, you will also find battery-powered amplifiers, guitar speaker cabinets, and a wide range of accessories, such as footswitches, MIDI footboards, amp and cabinet covers. The knowledgeable team in the guitar department looks forward to your visit or call to assist you with advice and support in selecting your perfect instrument.
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