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The importance of signal density

Updated: Apr 8, 2023

While based on older analog technology, the advanced designs of the2Mic endow classical and acoustic guitarists with the ability to maintain natural tonal qualities and achieve volume levels allowing inclusion into any music venue or ensemble, including orchestras or rock concerts.

Analog technologies are wonderful for recording and reproducing subtle tones and nuances of acoustic musical instruments, while digital technologies are wonderful for efficiently processing enormous volumes of electronic information at high volume levels. Analog signals are beautiful and natural, but often encounter but tone quality can deteriorate at higher volume levels. The best of both analog and digital technologies are married byt the unique phasing of the2mic designs so that analog condenser mics can accurately record the natural tone quality of a classical or acoustic guitar , as well as deliver a dense and stable signal, which digital powered speakers can use to accurately reproduce these acoustic tones a very high volume levels.

It helps to better understand the realities of live sound amplification if we first explain the difference in tonal qualities produced by electronic instruments versus acoustic instruments.

Musical sound is expressed both with fundamental tones, and overtones. When a musician plays a single note on a classical guitar, the fundamental tone of this note is further enhanced by overtones which are excited by this fundamental tone, and resonate at different frequencies. It is these overtones which create the richness of sound from acoustic instruments.

Electric instruments (processed signal instruments) mostly produce fundamental tones. Most listeners would agree that such fundamental tones do not have the richness of acoustic instruments, but fundamental tones can be easily manipulated by electronic devices to create interesting and often desirable sound qualities. Most significant is that simplicity of fundamental tones permits amplification at extremely high volume levels. Electric guitars & bass, & keyboards can be easily amplified to massive volume levels using very simple amplification gear….. and thus, the the modern era of “Rock Concerts” began.

Acoustic instruments, and especially classical & acoustic guitars, produce a tone that is filled with many nuances and overtones, which can only be accurately recorded using a microphone. And any traditional microphone signal is difficult to amplify at higher volumes without feedback or tone degradation. Amplifying a classical or acoustic guitar with a hand held or stand mounted (ambient) mic is further impeded by the reality of the guitarist’s hand being in the way of the ideal location for such an ambient mic. Since an ambient mic must be moved further away from the sound hole, the end result is that there is not enough sound energy (sound pressure) to efficiently drive an ambient mic for amplifying an acoustic guitar in high volume level venues.

The2Mic places its two individual mic elements at locations inside the guitar where there are sufficient sound pressure levels to efficiently drive the mics. Plus, having mics in two different internal locations, allows a the2Mic to record the many diverse tonal qualities of a classical or acoustic guitar, creating a more complete guitar sound to be amplified. since there is no one location on any guitar where every sound quality of


The newest model - the2Mic-Studio - takes recording a dense acoustic signal to even higher levels than before, by placing one mic near the sound hole (just beneath the strings) and a 2d mic outside the sound hole, (but not in the way of the guitarist’s hands). The sound hole acts as a natural mixer for a guitar, and blends the overall tonal qualities as best as possible, while the high sound pressure level just below the sound hole create a density of signal that take tone quality and feedback rejection to entirely new levels. the2Mic-studio takes advantage of these realities to create a recorded or amplified signal which can reproduce natural sound tonalities even at extremely high volume levels.

Then end result of sound amplification with the2Mic is that the nuanced analog technology of a miniature condenser microphone has been re-designed to record a strong & dense signal that is perfectly compatible with modern digital amplification technologies. Using this strong and dense signal from the2mic, modern digital mixers and powered speakers can reproduce the overtone rich qualities of a classical or acoustic guitar accurately and at amazingly high volume levels.

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